Use of remote sensing techniques for detection of crop stress due to pests and diseases is based on the assumption that stresses induced by them interfere with photosynthesis and physical structure of the plant, affect absorption of light energy and thus alter the reflectance spectrum of plants. Field experiments were conducted to detect and estimate damage caused by sucking pests in cotton (cv...

Several isolates of Bacillus thuringiensis (Bt) were screened for the vegetative insecticidal protein (Vip) effective against sap-sucking insect pests. Screening results were based on LC(50) values against cotton aphid (Aphis gossypii), one of the dangerous pests of various crop plants including cotton. Among the isolates, the Bt#BREF24 showed promising results, and upon purification the aphidi...

The cotton intercropping experiment was conducted for the management of sucking pests, viz. leafhopper, Amrasca biguttula Ishida (Hemiptera: Cicadellidae); whitefly, Bemisia tabaci Gennadius Aleyrodidae) and thrips, Thrips Linderman (Thysanoptera: Thripidae) in desi cotton, Gossypium arborium. results study revealed that less mean population leafhopper nymphs, whitefly thrips adults recorded fr...

The management of major field insect pests of cowpea under calendar and monitored sprays of cypermethrin was studied. The major insect pests studied were the cowpea aphid, Aphis craccivora Koch, legume bud thrips Megalurothrips sjostedti Tryb, legume pod borer, Maruca vitrata Fab. and pod sucking bugs. Influence of insect pest management on yield was also determined. The calendar sprays consist...