Relative toxicity of two natural compounds compared to abamectin against some soybean pests under period rates

A sustainable pest management in agro-ecosystems requires parallel assessments of pesticide and natural compounds to control target pests. In the present study, a semi-field experiment was conducted evaluate relative toxicity abamectin (Abamax), humic acid, Chitosan Nano-Particles (C.N.Ps) against four soybean pests: Tetranychus urticae , Eutetranychus orientalis Bemisia tabaci Phenacoccus solenopsis . The experimental treatments were arranged split-plot design with three replicates, where assigned main plots populations under different periods subplots. obtained results graphs demonstrated that there considerable differences between total numbers pests after treatment. Generally, E. recorded minimum number at all. Different tested correlation densities T. exhibited significant other ( B. P. ). did not correlate acid best effect on 3 days reduction 85.45% 7 65.55%. However, for 14 (mortality 74.36%). contrast, (Abamax) had general mean 91.17% whenever, these are promising controlling These may be supporting method overcome some findings discussed within context integrated conditions.