2006•Agrochemicals Research & ApplicationRequires access
Bioactivity and Field Effect Efficacy of 50% Diafenthiuron SC for Contronling Plutella xylostella L.
Jiang Gai-qing
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Abstract
The bioactivity and the effect evaluation of 50% diafenthiuron SC against diamond back moth P. xylostella L. were determined in the present paper. The results indicated that the bioactivity of 50% diafenthiuron SC against diamond back moth was good after 48 h treatment,the LC50 and LC90 values were 580.723 mg/L and 2378.975 mg/L,respectively,and,the LC50 and LC90 values after 72 h treatment were 488.163 mg/L and 1662.417 mg/L,respectively. The field trials showed that 50% diafenthiuron SC had an excellent effect for controlling P. xylostella L. with 75～100 ml per 667 m2. It is a good insecticide for controlling diamond back moth currently.