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Studies on the Toxicity and Field Effectiveness of Imidacloprid to Greenhouse Whitefly |
Ju Zhengli; Zhu Guoren; Zhang Youjun et al. |
Institute of Vegetables and Flowers; Chinese Academy of Agricultural Sciences; Beijing 100081 |
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Abstract Laboratory and field trials were conducted to evaluate the efficacy of imidacloprid to control Greenhouse whitefly. The field effectivenesses of 40~80mg/L of 20% imidacloprid at 1~15 days were 75.6%~96.5%,which were significantly higher than that of 100mg/L of 20% fenpropathrin. Imidacloprid showed stronger toxicity to Greenhouse whitefly than fenpropathrin. Its LC50 was only 1/100 of fenpropathrin s.
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Received: 01 January 1900
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