Evaluation of Compatibility of Weedicides with Insecticides in Soybean Ecosystem.

The combination treatments T10-Quinalphos @ 20 ml + Quizalofop-p-ethyl 5 EC @ 20ml/10 L of water was found effective in management of monocotyledons weeds followed by T5 Chlorpyriphos @ 20 ml + Imazethapyr 10 SL @ 20 ml/10 L of water. The treatments effective for management of Dicotyledon weeds was T6- Quinalphos @ 20 ml + Imazethapyr 10 SL @ 20 ml/10 L of water and T8- Quinalphos @ 20 ml + Imazethapyr 10 SL @ 20 ml + (Targa super) Quizalofop-p-ethyl 5 EC @ 20ml/ 10 L of water. No level of injury was recorded in Visual scoring in treatments T1, T2 and T11 except treatments T3, T4, T5, T6, T9 recorded slight discoloration of soybean leaves and treatments T7 and T8 showed moderate injury. Regarding insect pest management the best treatments were T7 i.e. Chlorpyriphos @ 20 ml + Imazethapyr 10 SL @ 20 ml + (Targa super) Quizalofop-p-ethyl 5 EC @ 20ml/10 L of water, T5 Chlorpyriphos @ 20 ml + Imazethapyr 10 SL @ 20 ml/10 L of water and T1 Chlorpyriphos @ 20 ml/10 L of water were effective except treatments T3 and T4. Regarding yield T5 treatment recorded maximum yield i.e. 19.16 Q/ha. [ABSTRACT FROM AUTHOR]