| 赵胜园1, 杨现明1, 杨学礼2, 宋翼飞1, 3, 王文辉4, 吴孔明1*.8种农药对草地贪夜蛾的田间防治效果[J].植物保护,2019,45(4):74-78. |
| 8种农药对草地贪夜蛾的田间防治效果 |
| Field efficacy of eight insecticides on fall armyworm, Spodoptera frugiperda |
| 投稿时间：2019-06-12 修订日期：2019-06-15 |
| DOI：DOI: 10.16688/j.zwbh.2019289 |
| 中文关键词: 草地贪夜蛾 杀虫剂 田间药效 玉米 |
| 英文关键词:Spodoptera frugiperda insecticide field effect corn |
| 基金项目:国家现代农业产业技术体系(CARS-15-19) |
| 作者 | 单位 | | 赵胜园1, 杨现明1, 杨学礼2, 宋翼飞1, 3, 王文辉4, 吴孔明1* | 1. 中国农业科学院植物保护研究所, 植物病虫害生物学国家重点实验室, 北京 100193
2. 云南省普洱市江城县植保植检站, 普洱 665999
3. 福建农林大学植物保护学院, 福州 350002
4. 云南省普洱市江城县宝藏镇农业服务中心, 普洱 665904 |
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| 中文摘要: |
| 利用前期室内筛选得到的对草地贪夜蛾有较高防效的5种化学农药和3种生物农药在云南省普洱市江城县开展了对玉米上草地贪夜蛾田间药效试验研究。结果表明, 化学农药60 g/L乙基多杀菌素SC、5%甲氨基阿维菌素苯甲酸盐ME、200 g/L氯虫苯甲酰胺SC、5%氯虫苯甲酰胺UL和75%乙酰甲胺磷SP施药7 d后对草地贪夜蛾的防效达到81.42%~92.59%, 施药15 d后对玉米叶片的保护率达到82%~95%。3%氟虫腈ME施药7 d后的防效为46.90%, 施药15 d后对玉米叶片的保护率仅为18.75%。生物农药10%多杀霉素WG、8 000 IU/μL苏云金杆菌SC和80亿孢子/g球孢白僵菌OD施药7 d后的防效分别为73.62%、60.78%~64.01%和29.12%, 施药15 d后对叶片保护率分别为57.50%、25.63%~36.25%和26.25%。本研究结果表明, 乙基多杀菌素、甲维盐、氯虫苯甲酰胺、乙酰甲胺磷及抗生素类农药多杀霉素等新型高效低毒农药是草地贪夜蛾应急防控的首选农药, 而苏云金芽孢杆菌和球孢白僵菌对该虫防治效果相对较低, 适用于低密度种群的预防性控制用药。 |
| 英文摘要: |
| In our previous indoor study, we found five chemical insecticides and three biological insecticides showed high toxicity to Spodoptera frugiperda. In this paper the control effect of these insecticides against S.frugiperda in corn field were investigated in Jiangcheng county, Yunnan province. The results showed that the spinetoram 60 g/L SC, emamectin benzoate 5% ME, chlorantraniliprole 200 g/L SC, chlorantraniliprole 5% UL and acephate 75% SP showed great control effect which is 81.42%-92.59% 7 days after application and the protection rates of these four insecticides on corn leaves reached 82%-95% 15 days after application, but control effect of fipronil 3% ME was only 46.90% 7 days after application, and its protection rate on leaves was 18.75% 15 days after application. The control effects of spinosad 10% WG, Bacillus thuringiensis 8 000 IU/μL SC and Beauveria bassiana 8×109 spores/g OD were 73.62%, 60.78%-64.01% and 29.12% 7 days after application, and the leaf protection rates were 57.50%, 25.63%-36.25% and 26.25% respectively after 15 days. We suggested that spinetoram, emamectin benzoate, chlorantraniliprole, acephate and spinosad are the first choice for emergency control of S. frugiperda, while Bacillus thuringiensis and Beauveria bassiana are suitable for the preventive control of S. frugiperda in low population density. |
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