| 徐淑；余瑶袁；陈凯歌；贾涛；陈炳旭.5种杀螨剂对荔枝叶螨的毒力测定及田间药效[J].广东农业科学,2014,41(14):83-85 |
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5种杀螨剂对荔枝叶螨的毒力测定及田间药效 |
| Toxicity test and field efficacy of 5 kinds of acaricides against Oligonychus litchii |
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| DOI： |
| 中文关键词: 杀螨剂 荔枝叶螨 毒力 田间防效 |
| 英文关键词: acaricides Oligonychus litchii toxicity field efficacy |
| 基金项目:院国家公益性行业渊农业冤科研专项（201103020）；国家荔枝龙眼产业技术体系（CARS-33-06） |
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| 中文摘要: |
| 用Potter喷雾法测定阿维菌素尧哒螨灵、噻螨酮尧螺螨酯和乙螨唑对荔枝叶螨成螨的室内毒力，并通过田间药效试验评价5种药剂对荔枝叶螨的防治效果。结果表明，阿维菌素和哒螨灵对荔枝叶螨成螨的致死中浓度LC50分别为0.18799 、1.05426mg/L，噻螨酮、螺螨酯和乙螨唑3种杀螨剂对荔枝叶螨成螨无效。田间药效试验结果表明，5%阿维菌素乳油、15%哒螨灵乳油和5%噻螨酮乳油对荔枝叶螨的速效性较好，而240 g/L 螺螨酯悬浮剂和110g/L乙螨唑悬浮剂速效性较差，药后2d，供试药剂各处理中15%哒螨灵乳油1765倍处理的防效（90.00%）最高，而110g/L乙螨唑悬浮剂6500倍处理的防效（57.04%）最差；药后7d，供试药剂各处理的防效均达到89%以上；药后15d，除5%阿维菌素乳油处理外，其余药剂处理的防效均达到100.00%，5%阿维菌素乳油8333倍处理防效（91.31%）最差，供试的5种药剂均能达到防治要求，持效期长，可用于荔枝叶螨的防治。 |
| 英文摘要: |
| The toxicities and field control effects of abamectin, pyridaben, hexythiazox, spirodiclofen and etoxazole against Oligonychus litchii were tested by Potter-spraying method and field efficacy trials. The results showed that the LC50 of abamectin and pyridaben to Oligonychus litchii adults were 0.18799 mg/L and 1.05426 mg/L, respectively. These 3 acaricides, hexythiazox, spirodiclofen and etoxazole, had no toxicity to Oligonychus litchii adults. Field efficacy trials showed that 5% abamectin EC, 15% pyridaben EC and 5% pyridaben EC had ready availability on Oligonychus litchii, but 240 g/L spirodiclofen SC and 110 g/L etoxazole SC were less ready availability. After 2 days, the treatment of 15% pyridaben EC diluted 1 765 times had the highest control effect (90.00%), and 110g/L etoxazole SC diluted 6 500 times had the worst control effect (57.04%). Control effects of the acaricides treatments were all above 89% after 7 days. After 15 days, all of the treatments of acaricides爷control effects were 100.00%, except the treatments of 5% abamectin EC, and the 5% abamectin EC diluted 8 333 times had the worst control effect (91.31%). All these 5 kinds of acaricides could meet the
control requirements and had a long effective duration, so they could be used to control Oligonychus litchii. |
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