INFLUENCE OF TEMPERATURE ON TOXICITY OF 2 PYRETHROIDS TO GRASSHOPPERS (ORTHOPTERA, ACRIDIDAE)
INFLUENCE OF TEMPERATURE ON TOXICITY OF 2 PYRETHROIDS TO GRASSHOPPERS (ORTHOPTERA, ACRIDIDAE)
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DOI：
10.1093/jee/83.2.366
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发表时间：
1990-04-01
影响因子：
2.2
通讯作者：
JOHNSON, DL
中科院分区：
文献类型：
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作者：
JOHNSON, DL
评价了温度对两种拟除虫菊酯类杀虫剂对蝗虫毒性的影响。在实验室中，用 10 或 20 克/公顷（相当于有效田间施用量）的甲氰菊酯、6 克/公顷的溴氰菊酯或 10 克/公顷的甲氰菊酯与 300 克/公顷的二嗪农组合喷洒两种蝗虫——Camnula pellucida (Scudder) 和 Melanoplus bivittatus (Say) 的若虫，并立即转移到 15 至 15 ℃的恒定温度。 19、23、27 或 31 度。 C. 没有一种杀虫剂在 27 或 31 摄氏度时效果较差。 C 比在较低温度下。温度越高，死亡率越高且发生得更快。治疗后第二天及随后几天，死亡率分别为 23、27 或 31 摄氏度。 C无显着差异。死亡率为 19 度。 C明显低于23-31℃。 C，道德为15度。 C低于19℃。 C. 讨论了毒性与温度、杀虫剂和物种的相互作用。
Effects of temperature on the toxicity of two pyrethroid insecticides to grasshopper were evaluated. In the laboratory, nymphs of two grasshopper species, Camnula pellucida (Scudder) and Melanoplus bivittatus (Say), were sprayed with alphamethrin at 10 or 20 g/ha (equivalent to effective field rates), deltamethrin at 6 g/ha, or alphamethrin at 10 g/ha combined with diazinon at 300 g/ha, and immediately transferred to constant temperatures of 15, 19, 23, 27, or 31.degree. C. None of the insecticides were less effective at 27 or 31.degree. C than at lower temperatures. Mortality rates were greater and occurred more rapidly at higher temperatures. On the second and subsequent days after treatment, mortalities at 23, 27, or 31.degree. C did not differ significantly. Mortality at 19.degree. C was significantly lower than at 23-31.degree. C, and morality at 15.degree. C was lower than at 19.degree. C. Interactions of toxicity with temperature, insecticide, and species are discussed.