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Effect of temperature and grain type on the long-term persistence and efficacy of s-methoprene in controlling Rhyzopertha dominica

文献类型: 外文期刊

作者: Li, Lei 1 ; Zeng, Ling 1 ; Liang, Guangwen 1 ;

作者机构: 1.South China Agr Univ, Lab Insect Ecol, Guangzhou 510642, Guangdong, Peoples R China

2.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Zhanjiang, Guangdong, Peoples R China

关键词: s-methoprene;Rhyzopertha dominica;temperature;grain type

期刊名称:PEST MANAGEMENT SCIENCE ( 影响因子:4.845; 五年影响因子:4.674 )

ISSN:

年卷期:

页码:

收录情况: SCI

摘要: BACKGROUND: The efficacy of methoprene can vary with surface substrates, application methods and environmental conditions. The objectives of the present study were to examine the effects of temperature and grain type on the long-term persistence and efficacy of methoprene in controlling Rhyzopertha dominica from Guangzhou, China. RESULTS: Methoprene applied at 1 mgkg~(-1) caused >90% suppression of F1 adult progeny of R. dominica for 150-270 days. Temperature and grain type both influenced the long-term persistence of methoprene. Overall multivariate analysis of variance showed that the order of progeny reduction at different temperatures (°C) was: 24 > 28 > 32 > 36; the order of the progeny reduction on the different grains was: paddy > wheat and maize. CONCLUSION: The results of our experiments show the maximum effect of methoprene for R. dominica control at 24°C on paddy.

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