Azadirachtin, the most potent neem derivative: Effect on Spilosoma obliqua

摘要: For understanding the possible effect of azadirachtin (Az) on Spilosoma obliqua, dual diet choice test, growth and development, insecticidal were investigated. Antifeedant action Az against 12 day old larvaeshowed dose-dependent effect. However, this property gradually decreased with advancement larval stage. Growth development ofneonate larvae different dietary concentrations showed that performance parameters increase concentration. fortified 0.500 ppm resulted in complete mortality. Probit analysis was also carried out for computing EC 5 0 basis four methods observation. It ranged from 0.640 to 41.983 ppm. computed as 1.892 considered more accurate when based cumulative mortality a specific day. Topical application failed prove any insect.