Control Effects of Six Insecticides to Spodoptera frugiperda in Anhui Province

Control Effects of Six Insecticides to Spodoptera frugiperda in Anhui Province

This paper aims to screen out effective insecticides with good control effects to Spodoptera frugiperda in Anhui province. [Methods] The indoor toxicity and field efficacy of six insecticides to S. frugiperda were evaluated. [Results] The indoor toxicity and field efficacy of the emamectin benzoate 5% ME were the highest with LC50 value of 0.070 mg/L after 48 h treatment and 91.90 and 92.78% control in field after 7 and 14 days treatment respectively. Followed by the spinetoram 60 g/L SC and cabbage armyworm nuclear polyhedrosis virus 2×109 PIB/mL SC, but the indoor toxicity and field efficacy of other three insecticides to S. frugiperda were all lower, including Bacillus theuringiensis 8000 IU/μL SC, Metarhizium chager CQ-Ma421 8×109 cfu/mL OD and Beauveria bassiana 1×1010 cfu/g OP. [Conclusions] Emamectin benzoate, spinetoram and cabbage armyworm nuclear polyhedrosis virus could be selected for controlling S. frugiperda in Anhui province