Field efficacy of insecticides against jassid, Empoasca kerri (Pruthi) in soybean.

Nine different insecticidal treatments were tested against Empoasca kerri in soybean during the year 2007. The results on the efficacy of insecticidal treatments showed that the thiamethoxam 0.05%, acetamiprid 0.004% and imidacloprid 0.01% were the most effective treatments for the control of jassid in soybean. Considering the yield of this crop, spraying with thiamethoxam 0.05% gave the maximum grain yield (1889 kg/ha), followed by acetamiprid 0.004% (1852 kg/ha) and imidacloprid 0.0] % (1815 kg/ha). The highest net return was also found in thiamethoxam 0.05% (Rs. 17920) followed by acetamiprid 0.004% (Rs. 17,328) and imidacloprid 0.01% (Rs. 16,736).