| 张 皓1, 李培贵2, 李生彬3, 吕志强1, 胡小平1.4种杀虫剂对甘草胭珠蚧的防治效果[J].植物保护,2017,43(1):214-217. |
| 4种杀虫剂对甘草胭珠蚧的防治效果 |
| Control effects of four insecticides against Porphyrophora sophorae |
| 投稿时间：2016-01-19 修订日期：2016-03-04 |
| DOI： |
| 中文关键词: 甘草 甘草胭珠蚧 土壤处理 灌根 防治效果 |
| 英文关键词:Glycyrrhiza uralensis Porphyrophora sophorae soil treatment root-irrigation control efficacy |
| 基金项目:宁陕科技合作项目(080807) |
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| 摘要点击次数: 840 |
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| 中文摘要: |
| 甘草胭珠蚧Porphyrophora sophorae (Arch.)是人工栽培甘草的主要害虫。采用灌根、土壤处理法研究了35%吡虫啉悬浮剂、70%噻虫嗪水分散粒剂、48%毒死蜱乳油和5%毒死蜱颗粒剂4种杀虫剂对甘草胭珠蚧的防治效果。结果表明, 8月中旬施药各药剂的防治效果均低于50%, 但可有效降低翌年春季田间的虫口密度; 6月中旬采用35%吡虫啉悬浮剂和70%噻虫嗪水分散粒剂灌根的防效可达80%以上。建议生产中可在6月中旬或之前采用灌溉后进行35%吡虫啉悬浮剂 1 500倍或70%噻虫嗪水分散粒剂7 500倍液300 mL/株灌根的措施防治甘草胭珠蚧。 |
| 英文摘要: |
| Porphyrophora sophorae (Arch.) is one of the key pests of cultivated liquorice, Glycyrrhiza uralensis Fisch. The control effect of four insecticides, including imidacloprid 35% SC , thiamethoxam 70% WG, chlorpyrifos 48% EC, and chlorpyrifos 5% GR through root-irrigation or soil treatment against the pest were investigated. The results showed that no control efficacy of any insecticides reached 50%, but the densities of the nymphs reduced in the following spring when the insecticides were applied in mid August. However, the efficacies of imidacloprid 35% SC and thiamethoxam 70% WG by irrigating root were over 80% when they were applied in mid June. Therefore root-irrigation using imidacloprid 35% SC (1 500×) or thiamethoxam 70% WG (7 500×) with a dosage of 300 mL per plant were recommended for the control of P. sophorae in mid June or before. |
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