CONTENTS 
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Ghemical's andunSECUS sc) cuewen os tewsr.eh o ce geuier secon ebisinome cents Rouieree Mountain eae 2 
Die balancerot naturieizmcte: ogonces ceseniahere, sentemersehventetremcpnee oir yeom me 3 
Is pyolKoy=aleruls(eenabestoyl ery toeoed chor CO. DIG DANO: Oh Un0..0yt O00 OG G.by0.06 66 6 Oo dC 3 
Agents of biologicalecontrols cs sss, 1, cnaweme: os) ot < Pope on ooo oon GC 4 
Advantapesiof biological jcontrolycaccnsucs wcees: chlomcuiomerce Folomonen cto ons 5 
Limitations of biological-control, -\.. exuee-ncionecsests sen eee ee ne 5 
Integrated control... % 4. « einer com eave Orolo Unc cholosu. oO G'olo pol ofura. oro o 6 
Other controls without: conventional insecticides icc j.1c) 6 egenteenemen 8 
Thexsterility methodsof ansect control Wyies a eveusuen sed ocdesa cienciacdts 5 8 
Release of sterile insects for amating.) fg. cprentomcienen on eke clcien 9 
Sterilizing insects in the natural population....... af conse Suis neatents ial 
Sex lures and other attractants: 5c). sss 6 <0: 2) 4 aseel esive el en ones eZ 
Gy Plane aie earenie a. occurs oenreee! inci oulepiss coh teucourelncutanrer oaonteureia mene ieme CUTS 13 
Pink bollwormeattractamtrsqeys.1ever lone) spo pemsusnccm en oie eircurinen eterna ioe 13 
Other WSexcdlu7S\siswesemcice feuisue yoo) lele selon svicl wives duc clmeiee tel scniei came atom eae 14 
Other chemical attractants, andibalts’:. 06.5. cs Welch + reite elmenemenen eo nehe 14 
bight-as ani attractant:. 2.2%, « sidsliie) ie ene shows) Ke Gro-Olonceb GC Geo dod u OIC 15 
InNsectoresistant plants: ss ae.cn cues op omeuets aire eee eins GoD morale ovo o 16 
Crop varieties with insect resistances, 5. \cei1s-sas wy eens Tiedoeentenic 16 
Effect of resistant crop varieties on insect populations...... . 7 
IEXoxo) sataal=4 eMaltaVoley ig omOl te CUDLOAC CDT CGeo Oo tm OL UD orc cto pica ayo loa 0 avd 18 
XDD OTIC UX ciel boipsl sed clon cusses Saredionegtenss rH Cec ORS ONG coke mao GG om Oc 20 
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