~,t 'f FL IrE OF A~iUULT~ir IEiii A FINAL WORD WITH THE EDITOR MnY Wi: Sv-i- I:... A II \ki i i \"iu~ ur t h 1:IC iiI A Sl liii I::I:S 111 : IN \ulihum A. iiliil\ lin i iliN SetiliC Al c\ C NCI oli N~iilC Ii ic c I lilI yi Iih lop iinlhili N il i C i IllN ki t I ,arl cn 111i ti l C ANul Lt li 1L th CilIlll rC xn r L hiN.iI ihliiAIA ll iili ii ii woid I~iit di~o.i LthiI N aI ii'' iA IhC~ i ll~ d i;IIiiI iCNt Ih liC i I tiIiIiuN .1k ia cti m 11 eC. I I CNNo ha ii Jut''. 1c1~ic f cl Mcl h r- iintvi I l91 " nl. ;38. \1. 4 AI i r:. A . , l ur Iv ' ci1 II Silll i \uhumiiliii..il I tt\ I I I I I I1(I IIl ..._.. . . Ill' ii IM I5 II 1 1 \1 __t \- '.t I)irr r IIt 55 1 IIS i t 91 (' I '.. S .A i,li.. I)ic~iu I .1 F .s-l'AS i.l l [Ii lo &I.. I Ii RO)i L Ilt R: SI \ S_.... ... i Ii Fat I dii' II RI A S .....~ N Ii n II ill li/b i "/i ~ ,i / 'I -,-1 i lr,I / l~nI i i illi, S.1'. Sl. I iu. I )v '1 / ii I i ' 1 v" / t,,iu,,, I'/, 'i " ' ' In,/li Il i Ib S, i.ii c:J I.I)i Mk S \M I.. Mcillwil (1I lcldr na111C, ok)cnl)1 indicalcCndln0nlcnl by IhC \I;Ih:ana \ I le tlllm al I'Apcrinlc111 "11;111~11 01 Atlhufil l nivCIIIvIfuII )IZIlldl)vCI IIIIIIL'I A11v uc nl I)e,111'IdC I;IIC, ill C veC~( )1 I;IhCIcll ;IIIIntIIII n rrCiII I I IC pun Icd dOC, 11u1 v ollI II II IC ICCi Il l l nu ndaII II ) I xICll faIC. Such IIC i~iml)Iv I);II I ()Itllc' i"n( ititill\rliL alkm 11000,,;n\k)C\;Illl ale valiglu, IM11C]i;ll'. AII, williral ,honld h0 tl'Cd al Ialc, BhIIvC IIt(IC I)cill ulcd by Ilic InhCl. I111iIIm;IIiIn Cult;li11Cd 11CIL'lll 1, av;Ill IhIC II, ;III IClo11, vv I I I I IIUI rC_;IId 101x1 C0 II1 ,Cv ol11ali()11al .I .. 1 ll c 1C StI Cn//v o h1 v () l Cil lu lo \Ci (~~ Clil kiNu includi A the i ll iiola di .\\ i tih\ h (icilyhiuaio1 ofI INNi G en i v i r iti h. Idtyi ... tii t orss mSe C tor on pag %[5.) 1;,mdea ?IIIII K.L. BOWEN ANDT.P. MACK LESSER CORNSTALK BORER AND AFLATOXINS DOUBLE TROUBLE FOR PEANUT GROWERS L I'SSi' r stalN~ lk ho c , andI A la- linsi~C~ aina toi Ca ninC in I'\l i ii~nln Stini ie ach~itI. In tests at the W ii t'i iN Suhtl ioliI1 IliiC Na iN a till C I elio inslhip hCINNo1 damag hllriCb IcsNCI cornsI'Italki hocr Lii d 'N I isih IIN "iii lul CiIlu lL t t iN ill itinpo uiNlil). (9 % lint in te ligt sol I in Muhi Ii flts ar ditilil c niin s Ni val iNLhtntcatc I aiix ICLv 1)1 thiN se't tl1_ 111)11 IL~LMt hul nleaiii of'i~ seed> lihit) l Iti in tl NdCCin_ I li also is I1CLtil Iin peauts tia c i i l-i ac l a1\ I/il .l ii itlt.itt'iI Laia Ci thi i~IC ins 11(111 L Onl tt panu root can11 h ll ahi ieata~lb.w ptti Of pllI t s I nI i IniliCn'Ni the dii (Iilii.intl pondn a Ics on Itll hlIcas t c iiiiis i damag N to 'I pods lidiid woeCLi Nni ti o ll t tu i lllt' ndi l anted iii til ith piud tiail tikin li .c it I Insc lit'lk I hiii I LI'ia l liltC iClitl C y ii i ll o\ lii p\nit anditai'klicl haNkI Ilto liINo "Ciht icnr cnti lll INrcr Nilii a crli dvlh mi piIit Ill aps intav~ l I hN k iN t i n t'I heuN ILA icc" siason iiihn. idcni iftlilNliucnil t~_i tiNN .iU Ideterinicd IllsveIluNdcls Lul lil liC.an pliiit Ike CNCl C lnt i NiNli iht'iii i NNi ' C n I O pods~t lit ll i IC t iiivcd pICnts. tiCl ii>Iiik ltiliioiiaiin il~t i'. dt Vv~ V/ iiiulli iiCNt C ilii ih'L co iil c iltiN lit hoc I N riilt)l :Id oi rll f pi d Ni Ig . an pI sr c of I' i ih Ii t~~ nLI.lCL 35' da , llcI I ' lin ' 1.7 INtmaii b l thIN IIlssro e il l l k oc hr prisIn t Tii hi sl Ill ilio ipiit lilt'_ lt'ili- vv ~ ~ ~ ~ ~ ~~t tiatli Cv hii inetcdsv r li t' hIcc Peanutsl luctc N it t I i)NNl ti N I~u iC s'111 Oii I / .i I fied/ I I M 711 4'0 1 .4 Irir 114 Ill opiliili ilfI t'il ll_ lot1 ainf tiatiilt' OIcNi il I h ml i iti, iL .ul )o l hi l~i Ilhlo II I III Icd b III 11.11 ill J ] " Iw I 1111v I ilt e P " A/a/w/11c/ l,;,riru/nnrnl kooperimc/l/ Slall( /r J. A. PLUMB. D. J. EARLIX. M. T. GOLDSBY. AND W. A. ROGERS LNTiRIC Si ( U OF CATFIS IMPORTAN- PROBLEM 1-I PRODUCERS Eii (tIL l~iLLi i(1k0 ilL theiIll~ Nci uN infioL~~N, (liiNLINL aic li iii \iIahll N" Li nlii Lihlili iiilulNli .~ c ii'NlL ltaion iiiN li /LIc thuh lia ii ilLN. Iii ,Il . I I kkr, I n( L i~'ilLlh l I i~liLN rate, \Iiil uiu ludIL in Loihi~l /II ii 1111.h NiLI II I ILL( i i/i ciii 'i L 1k ilL IlL NI)IiLNiaii SIIhiLi.,a h aacei 9 0 i i i L INL h_ h I/ I I i~ili Int l \h iiii L i/ili o L achuN lii IlLr Nkiii I liL II Ii oeu 1 iii ri ilL L1iNl NIL1 I 1Ik L I l \ii hn lilli r iiiiii ruur iarihi ci~ in IL i IIii I i I Lii I il/Il arill ikLik. aI thN iiiN hr L~i 50',i~ . k;Iil i ililik ill~lin.itiii not huclll lkli S( U ILLI i. iii u I L: kOt"" _ _ _ _ __ate Disease-free channel catfish (bottom) is compared to fish with Edwardsiella ictaluri infection. The fop fish has small depigmented areas in the skin and the middle fish has hemorrhaging of the skin. ilotIk IIIII hulk ll ii~~iL II ii~ I ii oL- Illil l u 'IK I A CII ilLLiii h L ioni \01ilL in-i S(:~c tihe lk iail hIiN r i I ( i t IlL nIN ;Il li li I Ih~ILii 11i:11 I :SLIlL ii' i N NI oLoli I\aiLNr(LIlh\ M iicii iliP clii' I o\ ~ r thL I~e l~ LIN1 111 " I 1111 a oi ac IN \l111 111 pil L Iha a Il N h i'h~ hi 'k i Irl ae. II'/ 1/ 1 (11 a chIIkiiililk I[ toI iiiiLIN r L\l iIe L IIlLil\ .11 NLikn Lo i Ic LN fi ll (lulL' iiai\ hrrni LIL'LiIliLLI ilIIoLL dcl mid rLi eIi Ii e [ -i t I I I,/ iin I Ii IL tI II I ii N,iiL' . , I i , Iu N k i rilLI~ii. IIC, I . ti~li- iI l i i I nto /l /_ i iiri mci LI iii 1i Iphc- iI li i' I I itIi1iL aII I I v ilI/l in ilL II iii tik 111 111 1 I iL Li I'I i i N I CI l i LiIdiL II , iii liL ii l' ti I Iiihi ii i -ul ' iI Ill Ii c iiiii (il. niauN IL I o ii I/lIL cL Ilic (,Ii li Ih (i til li n il Iii -~ nLkiLipr( CNLIiL lLN iii kke hii / 1)111/l IL ilLIllILcteiltlan iliin oiiLhlliiiLa iiii iiih k/ll) y ii Ilkk I Nh I ii n ofi Iiii ~ ThN I ( ik il i ,1i L l r m iN iil il ilie L IN.ra c I tL IlII)Iul//II(1/ l/~l ,riul I It/ Il lttr inli .S/If/iIli T.E. NUPP ANDN.R. Hf INLSI ZOXLS 00O SQOUIRREl -- T- I TI' IN MIXEUD PINE-HARDWOOD FORESTS (II ('iI II llOI1IC IUa lICIC lan III YIC Nm Imil lJ. ( I 11110 I C II IlY ' prYII IId.nI1- Ill)NY Il inLI Il olYmI v ICY' ,1 11011101 thiatN~ "1)11 an m lanmal IIIl CIfl iIN mu tc i n l\NYUIICIN vimlNJi mI. \IIIn xl iilm~m. 1k 1 11CC I)CY IC \ClI. N ci fhiCu~ Icc IICI\ prIC, l'tII INlC- \\ hic 111a 11 IIl(IYIN ilAN d I c thI 1urliYin Trc LIL III 11 rc 'impr n Il nc ~ l in IIYIii &v 011) olv flcti, Y il Igcu~ll iO- YIYI Wi c nmlioIl il 11 Iii vl. ii ,Ltt pr~mL\Y inlm bilIIY andI NujL al jld .;OIIIII01,YIiN W ILI, JI~YNI'.c t11M hL' idellipc i cl hlm0d lI liIIUN hIoim ,IlNmt ''ill I\CmI a1 in u ficllY num hcIN 01im lmnIN I iIII C iLmI Nm. InNh~ ImII IO Iicim m. Y'Y' the \IactIllI Vi I h ulc (1 IInmir lm~ p~plllml'5 111 in IeC e11-a1.'N pl il' Iur1 FJCUNIImt IN StatlcNi aCd 111 (;tUd> aimnd I iI Dl Y'dt It thcIIIYlc I1111 \cm tl c ofl' 1( \NOl~I IIC1101 I d \ LI ICN klIC e Clitlilth Alimi ttl of 10 ~l how"ccl NIIiII, erecdin OLLER lk'Ni Ille were Nm.inickedI NYINOlIIm ll \ vI- dmicc 0i IY 1 ld 'II~m' mi NfjLuiIr I lLittLIN. mit, wiCNI Fi\CNd wN ih Iladio NIICILCitr a4nd~ mYctc 1C iN vIYmm.cckI'. A\ YlotI of 200Y inmit 11 IiNt hl\Y'Nc a, CIL III d .O~ _i I\'1 I Illi Cpl Nm lil i in areaN . IY11111d Illtn I l Nm llitl hoea, Ir pIl~oor' Ira I uIIIIYY l N taitI t m)Y Yh 11 'LI (INyuirI lY Ill uro [11 n1 II ' 1Nm ii in ll)\ tdim lIliNY Nm.w IIIIIILI l inll are 10ulpe YIY' IY I(NYll Y'.W (ho ) .'I II I I . ,.~S \ Nu~io cl oIIhI IlcNl Iinl Y IcY kN I Il'1 111 N .a l YIIY Of I~pll t~ I 1 CjI Il IC- 11a1dm haYlt rha111' Iin11 lil la iN ,m llcluilhd 0 Icrul NiYn h11 areaI SNith hy'IY' It d I~ v II i lY'oul tm n. SN III -l mu I I l d ell n Il . ii IINII lI tIndlelY LIYIo elN o rr in r Il tiL N.Ilii rmI alll. 1)111 Graylurrj squirrelII shle use, bysesn roaado Education ~ ~ ~ ~ ~ ~ ~ ~ ta Centernr Anaui.Pht:Ceknga C IYIJl c l ho c clmllNIII.Ic Y'IIIIIC. liml NNIIIIclm aNIlfI ltN li\ '. lk\ N Il ll ' IllY IlImI NI I l' IN Ill) 1 1 l c I YIN N C Y 1) 11 l Y L N ' I Il N m Y CI nc t hilm L" ,II~ ml I ldr l Ii lN C ' LI iY tht l I Cr j NILmi IlYIY:I~I 111 mlll l lmilL~l~mllN Il YI YmI h Ilmu N cm~ ltiNIlLI I~ tI cInYIII IYIN l lIillil NNymIlIIY YI IN I{ I YY li/'I I\ liY hidt 110 mILC,. Y Idim-i 1ac Ilk I um i rlm'm' i mlm YII'~m~ Im_ t Ill 7? 11 Imf Ilm 'lNYI1 l "l'm YNII l'IIllm 11 Y'i~l.ILY~'mIIl NII~I~mI ~~)l \I~'ml l~lY' 'm' IN IlrIL' IllIcrl~Ii' , holl m) 1 pc Ju 11 llI~mIm~mmlI IcIN NNYIL IIY' ~ll~l(I ll~lI ii mYN 1lmN N. illllI\Y m l :llY' llu trmlmmI theYIN \ I I N I II ~Iu l)IC n C~ t lI w IC tiIla ICl l- j11 Ni lfli J I h ol, loutvad, al areI 1 I Ic o I lilY \\ ' 'i i I h 1 lllI Q1I I I' dc' II I ~ k p ru v ,1 1d \ ivll \I /b(iu cw i: 1 ru t!u I~ r \/)i I 11(1 S/U/oll R.T. L V" ._ >' . 'II NGHE LI ARE FISH FARMERS FEEDING To MUCH PROTEIN TO CATFISH? T 1 I IFAR'i protIein Ic(ircltcnt iiiiiincl catlishi iaN hccii reporiIted OC ItillFrom to 44' dc[IclL Ill oI ish sii., diet yu 1 -16 Ind~ taiii lCCI iIIIINwaII SILILIIC> hI the \Ia- (AALS) in the I97L) Shwc NONCL ' to hel[ ilJtinluilt. id this IN the protinl LoniCintra- tion1 IreiCnCth\ usedt ini Cil~HhcihiL I CCLIk. I-oN L'N C. Lclaii''C il II) cCLil'', rtesC Sin1ce that In Ithe CalI \AAi S NIics Icc liii)' raC> wN IC reicted toCL II vo(idl Nat> AICqlit\ pioh- IcimS. whereasi lilLaN 'S ti>Ii tarnI tid tol Id fishi all IlCe\ w>ill Cat. R11C1ii StuiesC inicl.ate that ciatlish Ic l i thc\ N> ill Cat liii> ICLILII ICS prCtNN I~i than t(iIhiNc cLI a Ic- SNI Ltcd diet. [Ceding~ pr actiLcN. I>o poniiid IcC~lini' C\(ei- HIlInt wN> CI LuilIIL cd al \Iihurin lIl >hich Nea Cii and N Car- citl ish inl Callthn pbonl wc> CI d CLI ImuhIh AN ItiC> wold Cat lot the Cnirei a'oiii ii' Caxmn ii lh hill> LIICtaI pro1m i oncentr atlions. that we> h i''i 'tlL(l 1not incrL s ICN IN iitai IIotcIiH iIIcrCaNel aIho\ ->41/, ThiCicloiC. a NSihNL(IiCli C\)Cim nt COIS > > LIiidL id N>ill comlparC three piotcml IL\INs (?[I'G1( iiid )8, 1 underi ulimIIited (satiatc) >CI NuN Iiiiiitcd (rc>1triLccd I ccli~g o lIiIIIIII. -I'li protinI~ concentrtionii o t Ice' ICLI \ I in- CICJNCLI [b> NuhIti~tiHL' a t'i\CL raio ofI So}- Ilcij licah -IISII i> tcial Ix 1 * l ot rnIII. InH cI''> LIIclLCiiin of the CI fc dN 01)1 Ho cL- Iatc2d. hut CS cntial aminoi acid>s iln all diICt" Ini tice>( tNIN. I ish N> r1 CI fromI> i Ii) li)- toI CL A llcliaIlcN Siiial ao ck n lcil\ oIC >NOl a>s I I.pc acr n caCI bi pondC DCih n thN t~lC >NaN iCkin1' d th IilplI~iLur' ilm iN I I'IIiLItCIC I l \CI-CL led Las '~i Nuc II iliV Ail Lh oi - _h iii12 chiCI dN> 101-c tih ''iii2 ri IC mntlaICl pIod tihe wi~CaNC en iii t iii IraLICU 'I I~ ii,~i' iii-i Ih. p r cI pelil tislhil i i t h iL rc ill IcL' L l 1tlpil IiL~ tCLii. I'CL 70 L of iihe I5-la ciiil pIc'i-iNI Nha therI ILL! ai Ii "W1 liiili lit illec of~ ii _ I ~iCg Cat in~i IoiiL~l diiia pro Ilil l Ioil the il*0init ScCLI .I C Lii t IcDishacId NatIcS"bn > liio CC. ici i in' tit rd 12dn ICS thn Si tion Ii. LICiAc laf CrISii i n tIfl A I io le \ I g Iiu I> nolt l ar. It cld h he fie LtoCI teiln LIci'a~latihlil) ini hilld \\al AN ulictii \ pIlliil ilcicJNCL. I [I rat iol of 111 n Iti t Io th l iLIc in Na- tiate-fed ponld" ieCCin in' to c.hannel catIish. cnLcN amIIog pI'CiC\ 11)1> c\(C lim1lit" \\ the ICeihg' ratL'\\aSiiilllCietrited in Soic than in ohei . I Ii\ al>)o presCnt tihL LHC"- lull). il ii ht ofI molih IllI IcCLdiii' praiL I I I I)ira Ni~~~ ~ ii IIiciid i IL ' i Ic Cai ?II ras'a 65 S 6.(>5 I ' I tiLC" ShulLd theC Iihiltiii iintcnt ofllishNi CCLI>hIC CIUCCL I ClhIN 32' ('' Itis dLlhll t1hat ComiliiCiial Iai ilCIN lciwalN (CCLI to SatialioIn. IIthCN Ldil. it N>io Ild heC tIimeCoLnl II l heILL IIIIL'IC '' CNIN12tr hat IS ofii~ teCOINa NIIII ll . WithC i pet LmL' il lctiILIN - Iimitcd lecdill, .......................... lriclcd tccdill, .......................... .......................... IJUh(Utur ; I,,ricuffiural L:1 1c rintc?n Sj(uiOjl J.L. ADRIAN AND M.D. CANNON NONAGRICULTURAL FACTORS AFFECT VALUE OF LAND IN RURAL-URBAN FRINGE URBANIZATION is an important factor affecting the use and value of agricultural land in the rural- urban fringe areas of larger south- ern cities. However, the extent of such im- pacts is less clear for smaller cities and metropolitan areas. To better understand this development process, the Alabama Agricultural Experiment Station analyzed the transitional agricultural land market in the periphery of the relatively small (pop- ulation of about 55,000) but growing met- ropolitan area encompassing Dothan in southeast Alabama. Data for the analysis were derived from a randomized sample of qualified land transfers between 1970 and 1990 involving agricultural land within 15 miles of the center of Dothan. The area encompassed parts of Dale, Geneva, Henry, and Houston counties. Buyers indicated that half of the agri- culturally oriented properties transferred in Dothan's fringe between 1970 and 1990 were purchased for nonagricultural uses. However, 15% of the surveyed agricultural tracts (9% of the acreage) within 15 miles of the city were converted to residential/ commercial/industrial uses during 1970- 1990. Two-thirds of these parcels were converted to nonagricultural uses after 1983. Within 8 miles of central Dothan, conversions to nonagricultural uses were more pronounced, accounting for about a fourth each of transferred tracts and acreage. When evaluating potential impacts of development and loss of agricultural land in urbanizing areas, both the quantity and quality of agricultural land involved must be considered. An analysis of soil survey reports for the Dothan area indicates much of the land already under cultivation is high quality agricultural land. In Dothan's fringe area, 48% of the land transferred to nonagricultural uses was used for row crop production and 70% of the land within 8 miles of Dothan had been used for row crops. Since row crop land is typically of higher quality than land allocated to other uses, this information suggests that high quality agricultural land in the Dothan area may be lost from agricultural production. Distance to Dothan, distance to a U.S. highway, and size of the tract were found to vary inversely with bare land value in Dothan's periphery. Decreases in value be- came less pronounced as distance to Dothan's center and tract size increased. Presence of paved road frontage on a tract, use of a real estate agency to handle the transaction, and the proportion of a tract allocated to row crop or pasture uses were positively related to value. A 10% increase in distance of a land tract from Dothan re- sulted in a 6.9% de- cline in value, while a similar increase in the distance to a U.S. highway resulted in a 1% decline. For example, a typical tract north- west of Dothan with paved road frontage and an urban influence would be valued at $2,152 per acre if located 3 miles from Dothan and $950 per acre if located 10 miles away. Similarly, the same example tract located 1/4 mile from a U.S. highway would have an estimated value of $1,099 per acre; if 4 miles from a U.S. highway, its value would be $856 per acre. Value per acre declined 1.7% for each 10% increase in size of the tract. Estimates indicate that the example tract would have a bare land value of $1,321 per acre if 10 acres in size and $799 per acre if it in- volved 210 acres. Thus, incremental in- creases in size of tract resulted in a decreas- ing level of decline in value, with little reduction noted beyond 100 acres. Proportion of a tract in row crop or pasture uses, representative measures for income-generating capacity, positively in- fluenced value. A 10% increase in the pro- portion of a tract allocated to row crops resulted in a 4.9% increase in value, while a similar increase in the proportion of a tract allocated to pasture resulted in a 2.4% up- ward adjustment. Thus, value was about twice as responsive to row crop acreage on a tract as to pasture acreage. Bare land value in the fringe of Dothan increased 2% per year over the 1970-90 period, or approximately 50% overall. Ad- justments in value were more pronounced in recent years. The periphery of Dothan has experienced differing patterns of growth. Urban expan- sion to the north and west has been strong, while urban expansion to the southeast has been limited. Tracts located to the northwest of the central city had values almost 50% higher than for similar tracts in the south- eastern quadrant. Values per acre were similar for tracts located in northwest, northeast, and southwest quadrants, other factors held constant. Tracts with paved road frontage had val- ues 35% higher than for similar tracts lacking such access. Also, transactions in- volving a real estate agency had values that were 28% higher than those handled without such facilitation. In summary, Dothan's fringe remains intensely agriculturally oriented, but there are clearly accentuated nonagricultural pressures in the market, especially within 8 miles and to the west of the central city. Indications are that such pressures in- creased in the latter half of the 1980's and that agricultural land values are sensitive to stimuli for the nonagricultural sector. Bar- ring unforeseen instability in the local economy, increased urban pressures on Dothan's fringe land market can be ex- pected in the 1990's. Adrian is Professor and Cannon is former Graduate Research Assistant of Agricultural Economics and Rural Sociology. Alabama Agricultural Experiment Station K. H. YOO AND E. W. ROCHESTER RAINFALL AND IRRIGAION WATER N AL ABAMA. and Suimier CI- Comes~ troim sl stormS that p~rod the soil is capable d much ot this wxater is also can be a Source o of streanlx. SimilIarly especialt> eneri -s 5)ystems, 01 ten Cause' hi"~ application rates. riciiltiiral Experiiment catex a Cui t ural pract illagc. could be iised this x aluable i ainitlt. Reseixoir tillalye SionS in the Soil xurfat mict otherwisec be I duirini7 high intensity Water retained in the opportuity to) in) iltrat 10er plant uise. The reservoirs wxet showxn in the photo. High compauction1 xx tlht t ccor .t...t . LI wComiipactionl Wdxithtott teservoirth... An .1avrage oi 1.97 in ai nfall diiri n1 Spin(I wxater over 3-ft. irowxs. ipping Seasons otten For the test at the t tort, high inten sity E.V. Smith Research uLce more. xxater thani Center, Shorter, 12 ; tF absoi bingl. ThbuS. Plots xx re est tblishtcl lost to iuof iii wt xhich on a Batssfield sandx rnon-point pollution toaml Soil wxith a0? -, sprinkler irrigation, slope in the direction ~ . ax'int, loxw pressuire ot the cuiltix ation. Sriincf lossxes idue to Lictiht rows or McNai r Recent Alabama Ag 22(0 c otton ii -xerie Station research indi- planted at 30- in. A 4 - ice, called reserxvoiii Spatcinits alone the to Saxve a poitioin of slope in eachI plot. Each plot xxas creates Small I iepre- eqiippei wxith runoff Cc tio holid xxater that measurinig and col- Ost S sufac runtf eclig dvice. A Water-holding re rnllall or iririgcation.- LEZPA ( Loxx E-niergy reservoirs his more Precision Appl itation ) irig Oationi sy stem - tinto thle soil pirofil I wh i clh al loxx w xater to be applied at irates hictier than soil inifiltiation rates. xwax re miaide wxith the tool used to irri gate the plots. Plots also xx ichl consisted of, xwere treated xxithi twxo lexvels of comipac- tioti xxithi a doule xx lhcie tt ii-Srie I Soui Rt oit. oi cinipactor attattied to a "'Wide i5\t t I it 1 05 I Framte Tiactixe Vehiitle.' lI1It Rjnol t St1th) ed itttiu R Un I IT S am lle s ro m t he tos /~ plots xwere col lectedt frorn eacht in soil Q''e cotllection tank liollowxinc, each la. hl. LI' in ioatioii exetit and anats ied lot Sediment coiicentr atioi. 67 0. 1 .6 I lCie xxeie lOUt tieatiients: (1 Ilu-i' Conipactio cwxxthout i exer 1.90 .07 3' xxithi ieseixvoir tittage. (3) loxx vas appled tiiimpattioii xxithout ieCSei xOii tillage: and (4) lowxcomilpact ion iiiOLcdii paddles Oii a freel) tiiriiig xxheel that xwas pulled behiiid a subsoiler shiaiik. Diirinig Operationi. the forwxant putl I ci the shank forex the paddles iiitc) the soil. The rcxi t i rg cdoxxiixxai c pi cx [tic and Itie Ifor- xxai d moxeentt tuns the paddles in the Soil. caiisiii thieii to continuouslx dig irexerx cirs that aie Spaced about 27 in.- apart and It) in. deep. Each reServoir hoidis up to 3 gal. of xxater. xxhichi is equivxaleiit to 0.5-(175 ini. of wxith reserxvoir t illace. The reserxoirs, xxhlichi xxct- about It) ini. deep atid 16-I18 ini. iii dianietei at the Soil Surl ace, xx cie x isuallx obsei x cc to iltet- mine chances iii size and Shape. The x cliiiie Of the reseirxoirs w xas maitily ie duiced diirinc iiienuse Spi(I rainlall. Silt- iiiO of the reserxvotirs by the eroideid sotil Irti the edges cit the ireserxvoirs anid Coni sioliidationi xxeie the mnajor cauixeS ct the servoirs were made with this Dammer Diker. coluiiie recduct ion. No addiltional changes ini Si/e or Shape xxeie cbseirxecd thrughioiit the Sunimet. Four 2-in. applicatiois cf irrication xxa- let xxere tested late ini the ciowxiiic Seasoni to) charateizie the Cllett oh, resrcixri tilla-C aid cS xil ccniipact icion n i(nIII and xecdl men losses. As nctecd by data in thle table. thle aimt)uint 1)f Storecd moistuiiie in thte So i I xas oreater Ifrot the loxw cotmpaction plots thiani troni the high Comipaction coues. xxithi oi xxithoiit ireserirxci tillace. I-in the hiich t-oiipattiioi lexvel. rI-1ol I11 losx xxas lowxer ft om the loits xxith recervoir tillace tliatt xxithiout it. The sedimtent toss 1-iomi the hioh tCotipaction tireatmients xxas xigifIicantly liicet thiaii that of the loxx coiipactioni tireatmetit. Fxven thoucai irri cation tests ini this Stud) xxecie taken cliirini a the maturiie paci i id oCt- toii. the LEPA imethocd lessened the protet- ticit of thet ro ici~ aiopx a-aiul curusioni bx ap~plyiiic xxatei 12 in. abox e the Soil Sur- face. Ox erall rexiu tS cit the Stud) Shioxecd a poiteiitial tor iixinc reserxvcir tullac ini Al abamiia to c cc ie iirIh at inci Iaiic secli- mniit Iroim hteax xriaiiilall oi irii iatioii. Yoot atnd Rotchestei ate Assotciaie Prttessori sot A lcihcium A urhiiultitici I'X riei~feIt .Stdation _ 6 C.K. HYDE rnlBv SnTRIPED BASS YVROi I III BR lIlI S I RIP[ ha~ Ii, t' 1 I'L Ciliiiat \ cc c ta shwin t hN Nithtt li -i [ttidl Nti [ICL hliNN. a Li (IN hicmNCt celC Ni~ti pci llNNi~~ ili Nth 0111C LiUNN. iN wel C Nl itCL lfii LILCNNIfu iiid naCtUiIiiiW I tl IILI lU itin I hiN lilt ilC ilurtiLC mMi1titil aii Nii m ,hi~ i IL haii CN ti ollN Lf ii L i th ttaniiCa t i it- 'iion iii iic dcliniI i ld HiockNL culh noi Li 1Crtiit tititil Naiicommirii itt tilL l L Thet U hi ,ticid (Hit iii itiou l to~ to dilter i e i ii ll ia ii\ 0 h \ hiuiit NIa~ i fur C I LutlIiLtCa ua uir itnLltl~ iii ulhNi t a th cLIciCci Val iiekiiii uitti\ IIC hii LittiLliL mL, ii itt t r N (Ii 10CN. ttC i lC c lii LIid iti ii tiN of C~ a( a cdh cliti -Iti llN ctI hili th N prod ciCtilL Ind nt tti g INN fooditli ii UN oti IateitN 40,(10)1) itm Ii l I. -1. NNiCrtii-ii NNr ,tucke ino Iv ponditi L t iitti it\r C L eNt i t IN ILN titLLL I it~ litiN it th ie tineN LNI. (I I N L i C NIiitl 101thL wiii) hnN IN 'iicht toi atiitL litiL, atliLh I itLci ilL Ie N iutmI Itttt ttL( ludl L pltto- l)Li tl i T l u l r Irdtu N titi liL InelaiL d alitlld i hm c ic a, i/Il ili /t d I/i/ liI I ton It tCt Im NC Ci CliC ll 'trr ,ciNt ilid ~I 2))) ,a it llio wLtC i ttt' aidi o t mit liii jtha.iCth Il Ni \\rr leC C cI datC ~ il\ ii t ti- ltiiin f ont~ m trou Ice cCtiniIW 4t,iC liiudet Ili an I O' L fii t .iLc LmI atHI , CdiuiilIi il]m gul mppiicc 50t i1i peCr CImii' ri ii c rIitdiCy I heIC,1ttt c ii~uly t Ice )aiot r titt ul 10~ii ipt\iltatc1. I o i t he ir lii \ ciCi iLl daility~ in L pri l, d aiCn I tst an 'I I i.. tcd I \\ttilt h\thtC \nd ot SCll NthcL(it t )t trac \ Criki'lt i~Itciht CNN., IttIILLNii iront tN hc 199 itt unl\\Ct ti a C~i \iiIC.\ March 191 it \\Cihi \\inc, and~ti ,t hatCI Il~ *t lit h\\C l,,, Ci ii than 1 kt>\cr lutol ltil\ NI tun toli C t he l ond A Lt L i - an) undc lb. li lc, IC a ICC h n ti lLrl thxie toitt bond l tt ti tilL itt (IN I\ mriti C tttlNiNt Li~ent lt ' Ithet iit h C r it nN ttt t lI\ dclilcifl to Ithei prrii, LLcilili, iLINr UNNthill INer II. ilb h L iiiN l tn lt c e it I iilLi p itlut t hi H witih ,L i i:\ g Lih \iL a I it Lipil- itt ttitii N., Ih CtttCNNC \r icke upi thi tllN carierN tI th I-to 11,1 \Ll I It''L iil \c\\i Ci r N NlC tCits . Li P icl i c ciNc fo'i h \ tCii ,i til? pt 11.hr lctt[c t lluhcuMcr A,,ri( v/turul Lt/)c rinic II/ Sh/Iict7] D.I BRANSBY ANDW.B. WEBSTER AUT-TRIUMPH AMONG THE BEST FUNGUS-FREE FESCUES UNDER G RAZING Cll, 'Illy N // 'i/ i n hc-/l tvvic ck Ih p. P cnc oinn M0 in (uc pi iiitm-ii \\ d ,iiocked LId , leei N \\ LPral an Ii -i trn hc.0 toN. aim li pcdi aorid On Iav~ialic a ia li I i \1111 *Nake m i d i - d iii in N il i ll I l Ilimn ii m lich 1Ci o c ll CaNI o111 liii i111~1iii i i \ i\ N aiin ii iou c i Iiiii Iic \d c\ IIN i iii li , hci a toi N ~ vll i ii IN II i IiCc \pin Ind w1i itihu~I\ aliiciia Iuuim nC fluIli1. iuuii a iI~i rmCdu~uI 101 [ lLLI y i cl i i\t Niy . -fIN iLL li/Ni. at ifli e N aiai\\ iiLi c i\ diid'i. 1:i CN inI IuIt\Staio. NiI c.IiiciI ihi ci iiuliN duml cm l\ ii d IIc i\\ intLo\I h Iti i Ic .ilct iN cNN iiicuiii Ciii n ii e luu iii ic I v i Ili u i i i I ii i I is S i r 1, I i i w \ 1I 1w Ilr I '.ni Iru iru . I .* \v d ill ait I II. I Inu r _ _ _ PaIur igM n K nurk ;I.... 'N{l -41 I n., 11 7N 7. 7S . I'ili-iN Ihi. I.IN Cii.liii~ NtilriNC JM]iuIci oifi Ii iiii- I rin.l rii irl. iii Kl'tiiIl\\ -I I hi',her Ihan hi 1 Iwc orI nucv It nLi,-ieCN iiiiiiii I oi i ~iN \\iiL lilL IC ,oiii I iINI! I I .I '.ii~c an ia c\r acii . I irLL ii C (iiNI Cii I Cwii iui \ i dcI atuuui hhiL iiii u ,tc ii. iile aiii v nI ii tI tah.ii. I cil I lid di r ~ iCdul cdil uii \ 'd aiICl ,((110i .1 I)c LI111C IvvIiie lM AI/io u I",/u//l ii! I \/i I/ Ill S1,11/i0h1 u 1 r' L. I. CHIBA PUSHING PIGS DURING GROWING PHASE MAY REDUCE EFFICIENCY OF PRODUCTION WHEN YOUNG pigs grow slow, it is readily apparent to produc- ers. As a result, there has been a strong emphasis on keeping young pigs growing at a rapid rate during starter and grower periods. Research on this topic has demonstrated conclusively that young pigs respond to diets high in amino acids or protein. Unfortunately, little attention has been given to whether feeding for faster growth at young ages promotes overall productiv- ity and efficiency from farrowing to finish- ing. In fact, reports of compensatory gain made by older pigs following restricted feeding at young ages suggests just the op- posite. Feeding high levels of costly pro- tein or amino acids for rapid growth of young pigs could very well result in higher feed costs and poorer growth efficiency over the full production cycle. A recent study at the Alabama Agricul- tural Experiment Station sheds some light on the issue. The study used 24 gilts and 24 castrated males weighing 40 lb. each. Their performance was compared on grower di- ets containing 0.62% and 1.12% lysine, which is the first-limiting (or most impor- tant) amino acid in a typical swine diet [National Research Council (NRC) rec- ommends 0.75% lysine]. When pigs reached about 110 lb. weight, half were slaughtered for evaluation of car- cass traits. The others that had been fed each of the grower diets were assigned to diets containing either 0.62% or 0.90% lysine and grown to 220 lb. finished weight. The amino acid balance was maintained by using a fixed proportion of comrn and soybean meal. Pigs were housed and fed individual- ly and allowed free access to feed and water. All pigs were slaughtered at 220 lb. to as- sess carcass traits and to estimate lean gain. Data on performance of pigs from 40 to 110 lb. shows that those fed the high- lysine diet gained 18% faster and were 23% more efficient than those fed the low- lysine diet. Time to reach 110-lb. size was 6.5 days less for the high-lysine group. It is important to note that pigs fed the low-lysine diet gained faster than normal for pigs of that age. But even better per- formance resulted when a diet higher in lysine was fed. Thus, pigs with genetic ability to grow fast can express their ability when the opportunity is presented. There was a turnaround, however, dur- ing the finishing phase (110-220 lb.). Pigs that had been fed the low-lysine diet tended to "catch up" with those that had been on the high-lysine diet. This is known as "compen- satory gain." As shown by data in the table, there was no overall performance differ- ence between the low- and high-lysine diets fed during the growing phase. These grower diets had no lasting effect on overall feed intake, weight gain, feed efficiency, or car- cass characteristics. The results indicate that the advantages obtained during the grower phase by feeding a diet high in lysine were lost during the finishing phase. In addition, the finishing pigs seemed to respond to a lysine level that is much higher than the NRC recommenda- tion (0.60%). Pigs fed the high-lysine diet during the finishing phase gained about 7% faster and were 8% more efficient than those on the low-lysine diet. The current demand for low-fat meats was considered in relation to the test diets. Not only is low-fat meat desired by con- sumers, but fattiness enters into the eco- nomics of production. Body fat is not only costly to produce, but also costly to elimi- nate in processing to produce low-fat prod- ucts. Therefore, it would be desirable to pro- duce animals with reduced fat in carcasses. The estimated rate and efficiency of lean gain were similar among the pigs fed a low-lysine diet during the grower phase and those fed a high-lysine diet in the grower phase and then switched to a low- lysine diet for finishing. In contrast, pigs fed the high-lysine diets during both grow- ing and finishing phases gained more lean (9%) and were more efficient (11%). For optimum leanness, therefore, it might be advantageous to feed high-lysine diets dur- ing both growing and finishing if the cost of protein supplements and sales price of lean hogs were favorable. Based on the results reported, the "all- out" effort to gain peak performance of grower phase pigs may not be warranted in terms of overall productivity or effi- ciency. Pigs can be fed low levels of amino acids (20% below NRC recommen- dations) during the grower phase without adversely affecting overall performance. Chiba is Assistant Professor of Animal and Dairy Sciences. Alabama Agricultural Experiment Station EFFECT OF DIETARY LYSINE LEVELS ON THE OVERALL PERFORMANCE OF PIGS FROM 40 TO 220 LB.' 0.62% grower diet 1.12% grower diet Measure 0.62% 0.90% 0.62% 0.90% finisher finisher finisher finisher diet diet diet diet Feed intake, lb./day ................. 6.23 (4.82)2 6.24 6.23 (4.64)2 6.11 Weight gain, lb./day ................ 1.90 (1.68) 2.03 1.94 (1.98) 2.07 Lb. gain/lb. of feed .................. 0.306 (0.350) 0.326 0.310 (0.431) 0.339 Backfat (10th. rib), in ............. 0.93 0.97 0.94 0.80 Loin muscle area, sq. in........... 5.25 5.27 5.48 5.79 Lean gain, lb./day .................... 0.75 0.75 0.75 0.82 Lean gain to DE intake, lb./Mcal 0.076 0.076 0.077 0.085 'Lysine concentration of the diets expressed in terms of digestible energy (DE) were 1.77, 2.56, and 3.20 grams/Meal for 0.62, 0.90, and 1.12%, respectively; constant proportions among amino acids were maintained in all diets. 2 Values in parentheses are gain data during growth from 40 to 110 lb. 11 G.R. MULLEN AND L.J. HRIBAR i1'.A~ I A1(ALY~i~, ~JbiLi{'~vLV tiN ~'41LU DIi{L)5 Common grackle with Ixodes brunneus ticks. ii i1( At H- vv Ild hliILN r AiL'tIcn Lilli La,icNL tilL indI Ni'iiili- xxheLni hindx ArLc ll>Iiiiti/eI hx tIlL h~iLd tilk i ml I iL Lc\ cii (aLhAi ini a Niilc attaLk. Tie hiidtl ick IN L'\Iilui\ Ci\ Au A\ ian NIar'C ,i iixiL' l ill. AllL thLIili of it c c naL' lltunLIo irdluLI. \li e thAil 'O NI)LcciLN. pie [hl lx I'ildIN ii,ixC L' e lIcCII11) cLI aN liII~iN i, tic ocILK I).inIli In \oitii \iiiL'I LA x helL I Ci 0111101 in iihe $11 Ih-l IL ickinlu(LLI llriai\ NiN oIcLurin ai ilullIel III anuuimal. inl inLi' caiiiiC. NibLeL'i ''ItlNt. diII",. andiL IILL,ioNIiall\ LAIN,iiini hul ii,N. iii LeaLi LA~e La A eelinl' liNk iiUlILiceN a N~~,iIILL'c IhiIIi'' iN, ,iii\ ti lt LIIi LiuIN theINL noIml tnn''il\e i~ine [II h~tI' iim-iLN Icieiuuuuu ini ihe loxxei or hilLd liimbN ,id illI\ iii' LII\\ar oi LI ii[Ii x A L. c\ Liii LAI rrCAL ui IlL he i AiLA ue. i~eiuh iCeiiIIN bulm iiiLI ieN nit 1111 l clle fuiL on~I ei IC~ixelx. Onix a hexx L,NL oI tiL IN liial\ NiN In xx ild SititeN. 'IihCN iii\ Ili CLI iliC Ca~tiri IluIeLhiiLI. cedhar xx aI\x in''. \uilLrieanIIi '11ineli LiAik- uIIII xiial\ii Iro the1 i ilte of the tovxx climin\ e d tA'C I i li From nu I liA\ Citioili. ('aNCNo Oh IaraiA I in LII ii~ Al I \f) lilinulil thank~ Ii jea OUS mainainc hIIIthe iliI I Agl e L ,L' ini \iAiiiauuii Ial IIIu \cNleu L I)rom Ny \cli - j 1 '\ L'L' (Ihhlilix .I Chipping sparrow killed by 1111c e eii' II "CL 1brunneus tick. theL hiLadL Ill neckI. Thel'NL hiIndN inl IeI loc\ I ACi1iiix01 lia'll L mxohipiL, l r iiei [IL . \\ inch I ac IlL' LLiiI i n IIhl' 'I AL e I L'iidi \\,I lI~iiIcdLL hx 13 hia iiixl\ ''L'LI lick, thL'L teAN oiiii A NiilL i li Ln iLch hot. All ofI the Iiid LIN e foun LI'lliilL\ ii' oii Sil miL' hLiiihIiinali\ imihiriid( II deLad bu IiAIt/LL oh ix~c IlL NDiic lLhc IN NIpl 199-\ L inL 1 (' ahc, \C [inILc. aiihe Maconi ,.II iL'. I iiLNe inl u(Ied txxci Iluie IinilLilL . A Lii n ,parro '' Ni~ I\.A \ l \uvueu iLAli ithiii. ] ' lIi N o C ih \A a, A N iilx onlL oII NC\ L'ial hli~i Illo thiN NICLiLN hL'haix iii'' ahonal aih a hinl fL'LdIL ini KilL II)L Clninbel 0 lie li Iinche A \ iilhC attah ed licLk, [mt \\rr CiL[n- NIL'aL\ andL Nt, ['"I il' \ ith ihcir feathlri finch with single I. \iii h ik, att'chId [to eus tick.IiChI)ALINie I ~tetpaddoI~iL h \\er ohLIc iat LtheL' iliaC imN pa ii CLI imii c I iL' LIIN 1A C I~I~IC l cNI ''LILI rohi ll hc iiLl \A leni-'iL'c III [Ix \ Lu el LofI\ [iiNII IINcm cr ' i'lie hiiId iike l iii II a IIaL'c [ t IL'Nil and Ii III hlihii t Illi [ I N IChe lII nIimLL ,. I IL I h L ,hLucII iI hliC N \d to elIandi. butly Iin\I a ,ml 1 IlCILLa'IeA'L II IlLhe I t i i i I \L-'[v i area. ProduciL I nI~ Ill IhN i i I lL~ti a0L'lIAeilaihaenll\ Aric "NLN oNll- IiN~ILA Il'l ralL ik poatin and t'heCAIIn P i rl IiniIiiix il l ciL i. lie iIct that ihe L'iII ofI tihL toIIiilnt AlL' LIoiil)IctL''i IL Ni1nii iaiil \au A Il IIiiCLiII iiLi L~ iL'ceAiri. I hi, inl 0li ilili ha~e wxill he c\IviidcLI a hi\ i d \ac c ii ii IN Il h inlLtLiiL liii(I xxii liiL Iin hiI rfn d a id,% atace (ickuu >,. uu uiuilI r Vuhumu , l, rir rlttu'ul 1 .a c'rimrn S uliun de J. D. NORTON G. E. BOYHAN. B. R. ABRAHAMS. J. S BANNON. J. A PITTS. M. H. HOLLINGSWORTH. AND J. T. EASON IN LV~t UISLASL-ALSIS IAN I VV AI Li( 1 ILLONS~ PRODUCED IN AAES RESEARCH ik \ Vfl'y \t I:\1' \\ ,~ Li dinR io \ ; ,iii \ \al- E lcimi Stio'lyy (Il ylC;Ik rcii l an alIlili th il meo yli l - iv.' 111111 N l -Svi c ct JI c aileiytl ind L-y ildyn I'rdri tiky \l S\yC illllilh~rh Cy I lyil ( )lll NN y ily N :h Ni c lli l lou V ll yl lo (1 CIC . Iliy Iliy I. ylillXl 11 l N 1111t yl~llll y an ii a N< i ll l l-i n yll It. yiI Nrx ixylly l ally ,C- piM / ~4 Left: AU-Sweet Scarlet. Right: AU-Golden Producer. r I (. Nuil' 1:I I im I R1,1 I la A v I 'Niul Similar ]null, \Vrrr l-Cpoltcd Irons Ihr Soulhrrn ('(10llcmtlyC \Valcrnlclon Vallct\ I rla1, ronducled acro~ the South. I Illoll I, Pn,1r~ol_ 1 0A Ilall I, Scnior IZrc:Ilill A~(,11,11. ;Intl \hlAmill, I, Rccarch lcchniiiml of 110111cu11111c: lian11o l 1, Stli 11111, 11 (lens oldie I :. A..')1111111 kccmdl ('r1\ Icr: 1'111, i, SUI)crinlendenl ul the ( hillon Arr.I I InIlirullurc Suhi:uiun: I II III in_ ,vv 1\I Ih i,')allcrinlendc 1\l ()I 111c \IUIII \I;Ih:una Il(OKL1llutc Suhln lion: I nun i, Sulcri111endl11t of the Salld \1(,Urllnin S(IhI;111011. Itu iy IN neon SNv 'I..... -( y'C I'I ii \lii IN ( liii ll ii11 S \Ny l ........... I ic ..... .. ... ...A l jy c i ... . ' I It ( 6 Illn i lo(Ii 'i .. 'N I ( ''il ly \c l"1c luc S hIllol ln(1:\ rh M n m 110 y' y' ilt lyk IIta 10 1 ii ll N ' l; a I NdIlit 'lNn 'i n ' IN iii i on. Wilth Ily'I ltiN 111ill l I II' I/. I'd, 37i I9 N 9 1.0174 I1 .i 11.4 ;7(9 'ii N? 9 Il 9,I 5 19.1N I)() Li t1,;9; IN.N Ills ? ItIlt6 19.? 1 14 I i ix SItI i he'l Sit illd SNh ]lN Sit Ip'cd Si i Id Jti ilil y Iri'iic. 1ll Ihy''l 'N iti IhylnUXI iiiiiyyyvth ( \nlhru(n(Ic Ptuarium G(Illlltty ,tCln \\ [It hliehl FahIc'. Yield and bruit CllmzwlrrisIir, of Vnriclic, of Walcrntcloll. Four Alahallm Lulution,' lih/b omo 1,ri( ullnrul L.v )c rrmr)rt .Stu iun E. P. BENSON AND A. G. APPEL COCKROACH CONTROL DIFFICULT EVEN WITH NEWEST SPRAYS ALABAMA PEST control opera- tors rate German cockroaches as the most troublesome pests for which they treat. Homeowners would probably agree. These persistent pests infest food, cabinets, and appliances. Not only are cockroaches a nuisance, they also may spread diseases and cause allergies. Many people prefer to employ profes- sional pest control operators to control Ger- man cockroaches. Because of their training, licensed operators can use certain restricted pesticide formulations that are not available to the public. Thus, they have more control weapons at their disposal. Pest control operators have traditionally used emulsifiable concentrate formulations of insecticides. These formulations mix well and do not leave a noticeable residue, but they do have shortcomings. They can be absorbed by unpainted wood and other surfaces, thereby removing the insecticide from the surface where it could be contacted by cockroaches. To overcome this problem, insecticide manufacturers have developed wettable powders and, more recently, microencapsulated formulations. These formulations remain in place on surfaces so they can be contacted by cockroaches. Three of these newer products-one wet- table powder and two microencapsulated products-were evaluated in a recent Ala- bama Agricultural Experiment Station study to determine their effectiveness. The insecticides tested' were Demon? wettable powder applied at 0.2% concentration, Diacap? microencapsulate applied at 1.2% concentration, and Empire? microencap- sulate applied at 0.5% concentration. Initially, over 200 prospective apartments were inspected for severity of cockroach infestation. The 36 with the greatest infesta- tion were chosen for the test. Apartments were assigned to treatments so that each treatment group had similar ' Demon is cypermethrin, Diacap is diazinon, and Empire 20 is chlorpyrifos. numbers of cockroaches at the beginning of the study. Evaluations were conducted be- fore treatment and at 1, 2, 4, and 8 weeks after treatment. For each evaluation period, which lasted 1 week, apartments were trapped using 10 sticky traps (Mr. Sticky?) per apartment. Six traps were placed in cabinets around the sink, two in the pantry, and one each by the stove and refrigerator. The highest labeled spray concentration was used for each product. The insecticides were mixed according to label direction, and about 1 qt. of the finished material was applied in the kitchen of the test apartments. Treatments were made with a 1- gal. compressed air sprayer pressurized to approximately 30 p.s.i. Kitchen cabinets were emptied and sprayed, as were areas around the stove, refrigerator, and other appliances. Where appropriate, crack and crevice treatments were made. Otherwise, insecticides were applied using a fan spray nozzle. After treatment, the total number of cockroaches trapped per treatment in each apartment was recorded, and the percent change from pretreatment was calculated. Overall, these treatments provided less than 60% control. This level of control is considered marginal, especially since untreated apartments had a reduction in German cockroaches of 27% after 4 weeks and 26% after 8 weeks. However, these reductions may have been influenced by the fact that this study was done in the fall. Even though German cockroaches are in- door pests, fall and winter decreases in their populations have been documented in other studies. Comparing the products, Diacap and Demon provided the best control. After 1 and 4 weeks post-treatment, Diacap pro- vided 45% and 60% control, respectively, compared with 26% and 58% for Demon for the same time periods. After 2 and 8 weeks, control by Demon was 56% and 65%, respectively, compared with 54% and 56% for Diacap. Cockroach numbers were greater in the Empire 20-treated apartments. Cockroach numbers increased 13% after 1 week, but declined to their lowest point of 35% after 4 weeks. Based on the results reported, Demon and Diacap performed similarly and were better than Empire for controlling cock- roaches. Still, overall control success was marginal. In apartments where German cockroaches are a serious problem, it ap- pears that more than just insecticide sprays, no matter what the formulation, are needed to effectively reduce cockroach numbers. Benson is Assistant Professor and Appel is Associate Professor of Entomology. Alabama Agricultural Experiment Station EFFICACY OF PROFESSIONAL-USE INSECTICIDES FOR THE CONTROL OF GERMAN COCKROACHES IN APARTMENTS Reduction of cockroaches/ Treatment' Cockroaches/apartment apartment, average at pretreat, average 1 week 2 weeks 4 weeks 8 weeks No. Pct. Pct. Pct. Pct. Control ........................... 344 3 19 27 26 Demon (0.2%) ................ 510 26 56 58 65 Diacap (1.2%) ................. 520 45 54 60 56 Empire 20 (0.5%) ............ 514 +132 25 35 25 'Eight to 11 apartments in each treatment. Demon is a wettable powder, the others are microencapsulated products. 2 Plus sign indicates an increase in cockroach numbers. No.1 3_41-s PMM. 14 G. J. TRAXLER AND J. J. MOLNAR AGRICULTURE SECTOR RESILIENT DURING 1980's LABAMA'S agricultural sector showed major changes during the 1980's. There were important adjustments in the aggregate levels of debt, assets, and owner's equity and a shift in the mix of farm enterprises. The result is optimism for the 1990's, ac- cording to an Alabama Agricultural Experi- ment Station study using data from USDA Economic Research Service and Alabama Agricultural Statistics Service. The sector carried a heavy debt burden at the beginning of the decade. The ratio of debt to farm equity swelled to an unprec- edented 28% in 1983, before falling to a level more in line with historical levels. This compares to levels of 25% and 21% nation- ally for the same years. Although the value of farm assets in Alabama tumbled by 40% between 1980 and 1989, agriculture was able to cope by reducing debt at an even faster rate. The worst of the financial adjust- ment process now appears to be over since the real value of assets has remained un- changed since 1987. Financial restructuring of the sector lifted the rate of return to equity from 4-5% to a healthier 8%. The fact that net farm income improved after the debt reduction suggests that much of the borrowed capital was not being productively employed in the earlier period. Off-farm income plays an important role in Alabama, accounting for approximately two-thirds of total income for farm house- holds. This continues to provide a stable source of liquidity. Relatively stable farm prices also helped the sector during the 1980's. In addition to the dramatic shedding of debt, Alabama's farm sector also evolved a different mix of enterprises by the end of the eighties. Three major changes in the composition of Alabama's farm output are obvious in the graph. Poultry and nursery crop production had large increases, but soybeans became a relatively minor crop. Cotton production is currently on the in- crease, but it was maintained at a fairly constant share of total farm production. The same is true for peanuts and livestock. Animal enterprises (including cattle, dairy, hogs, poultry, and catfish) have increased in importance relative to crops, moving from 60% of total receipts in 1977 to 71% in 1989. Farm forest products accounted for a nearly constant 4% of gross receipts. The rise of nursery and sod products has, in many ways, been as remarkable as the more widely recognized growth in poultry. The value of ornamental crops has been greater than the value of cotton production in Alabama in every year since 1986. In 1989, the value of ornamental crops ex- ceeded the value of the peanut crop, making ornamentals the most important nonan- imal commodity category in the State. Among noncrop enterprises, wildlife brought in a small amount of additional income to Alabama farms. Catfish marketings have grown rapidly, but have yet to exceed 1% of Alabama's total gross receipts. The importance of gov- ernment payments has increased from 1% to 4% of gross receipts during the 1980's; nevertheless, government programs are still less important in Alabama than in many other farm states. Finally, the long-term trend towards fewer, but larger, farms and the decline in total farm acreage continued during the 1980's. The number of farms fell by 20% between 1979 and 1989, but this is less than the 31% decline during the 1970's. Total farmland dropped 17% in the 1970's and 15% in the 1980's. Average farm size was 176 acres in 1969, 212 acres in 1979, and 226 acres in 1989. The improving economic viability of Alabama agriculture is good news, but real interest rates and uncertain markets remain challenges for the future. Traxler is Assistant Professor and Molnar is Alumni Professor of Agricultural Economics and Rural Sociology. Alabama Agricultural Experiment Station 50 45 40 35 30 25 20 15 10 ,=ar - u .. 'nIalS and turf Changes in share of farm receipts by six major farm commodities, 1977-1990. 15 J. M. HATKIN. J.J. GIAMBRONE. AND B.L. BLAGBURN N Rk I 'NIjean N'i hpl/Il~t (L iio,-II tics andt dkcNLaIN Lontril l imcI Ck\c a/l L 1 LI. NC\ cli a, old( diINCaC prl~liCml arc Nol IcLI. )cNN oIICN CIIICI C. 01( of~ III ~ IIIN'N I)nes ili IN CI itllpiI Crili/) ilc 11 1CjIUII dunl llp'L'NII C ILIN Ill aN I meic l C u i L IIIIINI . Ill lIttleiC ni''i)IdI/C. tillal I:\pcImcI Ilt/iI'IiolI \\lSCNL'iIh. lI''CI1. \NI)i.Ih Cdl reNuIl inC s CIC ICN[I-dtlI dlICaNC aiI/d Ic CdILILL I Nt. L i l11 inI hril~l CIN. 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