| 李海平，张海珠，庞保平*，常静.4种菊酯类杀虫剂对亚洲小车蝗的毒力和对ATPase活性的抑制[J].植物保护,2014,40(1):90-94. |
| 4种菊酯类杀虫剂对亚洲小车蝗的毒力和对ATPase活性的抑制 |
| Toxicities of four pyrethroids and their inhibition to ATPase in Oedaleus asiaticus |
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| DOI： |
| 中文关键词: 亚洲小车蝗 菊酯类杀虫剂 毒力 ATPase 抑制 |
| 英文关键词:Oedaleus asiaticus pyrethroid toxicity ATPase inhibition |
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| 摘要点击次数: 1149 |
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| 中文摘要: |
| 化学防治是草原蝗虫防治的主要应急措施，亚洲小车蝗是内蒙古草原的优势种。采用点滴法测定了4种菊酯类杀虫剂联苯菊酯、高效氯氰菊酯、高效氯氟氰菊酯和甲氰菊酯对亚洲小车蝗3龄蝗蝻的毒力。结果表明，联苯菊酯对亚洲小车蝗3龄蝗蝻的毒力最强，LD50值为0.004 8 μg/头，高效氯氟氰菊酯、高效氯氰菊酯和甲氰菊酯的LD50值分别为：0.022 7、0.012 2和0.005 1 μg/头。同时明确了4种菊酯类杀虫剂对亚洲小车蝗3龄蝗蝻离体ATPase活性都有一定程度的抑制作用。当药剂浓度为1×10-4mol/L时，高效氯氟氰菊酯、高效氯氰菊酯、联苯菊酯和甲氰菊酯对Na+-K+-ATPase的抑制分别为：57.62%、55.34%、45.70%和20.94%，对Ca2+-Mg2+-ATPase的抑制分别为：58.30%、58.05%、41.80%和19.35%。在浓度范围为1×10-4~1×10-8 mol/L，4种杀虫剂对亚洲小车蝗ATPase活性的抑制存在明显的剂量效应关系。 |
| 英文摘要: |
| The toxicities of four pyrethroid insecticides to third instar larvae of Oedaleus asiaticus B. Bienko were measured through the micro topical application technique. The results showed that the larvae were most sensitive to bifenthrin among the four insecticides tested, and its LD50 was 0.004 8 μg/larva. The LD50values of lambda-cyhalothrin, beta-cypermethrin and fenpropathrin were 0.022 7 μg/larva, 0.012 2 μg/larva and 0.005 1 μg/larva, respectively. It was showed that the four pyrethroids tested could inhibit the activity of ATPase in the larvae. When the final concentration of pyrethroids was 1×10-4mol/L, the percentages of inhibition to Na+-K+-ATPase by the four pyrethroids insecticides were 57.62% (lambda cyhalothrin), 55.34% (beta cypermethrin), 4570% (bifenthrin) and 20.94% (fenpropathrin), respectively, and the percentages of inhibition to Ca2+-Mg2+-ATPase were 58.30% (lambda cyhalothrin), 58.05% (betacypermethrin), 41.80% (bifenthrin) and 19.35% (fenpropathrin), respectively. The inhibition to ATPase activity by the four pyrethroids was increased with the increasing of pyrethroid concentration from 1×10-4 to 1×10-8 mol/L. |
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