Musser Fred R, Shelton Anthony M
Department of Entomology, Cornell University, New York State Agricultural Experiment Station, 630 W North St, Geneva, NY 14456, USA.
Pest Manag Sci. 2005 May;61(5):508-10. doi: 10.1002/ps.998.
The influence of post-treatment temperature on the toxicities of two pyrethroids (lambda-cyhalothrin and bifenthrin), a carbamate (methomyl) and a spinosyn (spinosad) to Ostrinia nubilalis (Hubner) larvae was evaluated in laboratory assays. From 24 to 35 degrees C, the toxicities of the pyrethroids decreased 9.5- and 13.6-fold while spinosad toxicity decreased 3.8-fold. The toxicity of methomyl did not change significantly. The results demonstrate that the most effective insecticide against a pest may vary with environmental conditions. In situations where comparable products from multiple insecticide classes are available, temperature should be included as a factor in the decision-making process.
在实验室试验中，评估了处理后温度对两种拟除虫菊酯（高效氯氟氰菊酯和联苯菊酯）、一种氨基甲酸酯（灭多威）和一种多杀菌素（多杀霉素）对欧洲玉米螟（Hubner）幼虫毒性的影响。在24至35摄氏度范围内，拟除虫菊酯的毒性降低了9.5倍和13.6倍，而多杀霉素的毒性降低了3.8倍。灭多威的毒性没有显著变化。结果表明，针对害虫最有效的杀虫剂可能会因环境条件而异。在有多种杀虫剂类别的可比产品的情况下，温度应作为决策过程中的一个因素。
