Indoor Control Efficacy of 4 Kinds of Pesticides against Latoia pastorlis （Butler） in Sonneratia apetala Buch-Ham

• 作者: DENG Yan LI De-wei WU Yao-jun YANG Zhen-de ZHANG Wen-ying
• 来源期刊: 植物病虫害研究：英文版
• 学科: 农学
• 关键词: 植物病虫害 预防 植物保护 植物检疫
• 年，卷（期）: 2012,（1）
• 页码范围: 48-50
• 页数: 3页
• 分类号: S4

摘要

[Objective]The paper was to screen pesticide that could effectively control Latoia pastorlis (Butler), and provide reference for its utilization in fields. [Method]The indoor control efficacy of 25% benzoylphenal urea, 30% trichlorfon, 16 000 IU/mg Bacillus thuringiensis and Beauveria bassiana on 2-3 instars larvae of L. pastorlis were determined, and the indoor toxicity of 25% benzoylphenal urea and crystal trichlorfon on shrimp was also tested. [Result]Four pesticides all had insecticidal effects on 2-3 instars larvae of L. pastorlis, of which 30% trichlorfon 800, 1 000 and 1 500 times and 25% benzoylphenal urea 800 times had the best control effect. Crystal trichlorfon with the concentrations of 0.500, 0.100, 0.010 mg/L and 25% benzoylphenal urea 8 000, 10 000, 15 000 times had little or no impact on shrimp, respectively.[Conclusion] 30% Trichlorfon was rapidly available with small impact on shrimp, which were suitable for emergency use or daily control of L. pastorlis. 25% Benzoylphenal urea and 16 000 IU/mg B. thuringiensis had relatively slow insecticidal effect, which was suitable for daily control of L. pastorlis.