Rates of Infestation by Pectinophora gossypiella SAUNDERS and Earias insulana BOIS., on Flowering Sites of the Cotton Plant (Lep.)

COMPARATIVE EFFICACY OF Trichogramma evanescens WEST. AND THE BIOCIDE (AGERIN) WITH RECOMMENDED INSECTICIDES PROGRAM FOR CONTROLLING COTTON BOLLWORMS AND ITS EFFECT ON COTTON PRODUCTIVITY IN MIDDLE EGYPT REGION.

“…).These insects are the principal pest of cotton in Egypt which cause considerable loss in quality and quantity of cotton yield in spite of the wide spread use of insecticides to control of them. ( El -Shaarawy et al 1975 ;Abul -Nasr et al 1979, andMesbah et al 2003) .Pink and Spiny bollworms cause damage by attacking terminal shoots, flower buds, and green bolls. The most serious damage to cotton is caused when larvae bore into the bolls, destroying the fiber, consuming seeds, and producing putrefaction due to the accumulation of feces and fungus.…”