| 杨现明1, 韩 蕾2, 赵胜园1, 王兴亚2, 姜玉英3, 吴孔明1*.麦田草地贪夜蛾农药防治技术研究[J].植物保护,2020,46(5):281-285. |
| 麦田草地贪夜蛾农药防治技术研究 |
| Insecticides applications for control of fall armyworm, Spodoptera frugiperda in wheat field |
| 投稿时间：2020-04-07 |
| DOI：DOI: 10.16688/j.zwbh.2020177 |
| 中文关键词: 草地贪夜蛾 小麦 农药 生物农药 |
| 英文关键词:fall armyworm wheat pesticide bio-pesticides |
| 基金项目:国家重点研发计划（2019YFD0300102）；中央级公益性科研院所基本科研业务费专项（CAAS-ZDRW202007，Y2019YJ06） |
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| 中文摘要: |
| 草地贪夜蛾可为害苗期至灌浆期的小麦, 但国内目前尚未进行麦田农药防治的研究工作。我们利用农业农村部推荐的草地贪夜蛾防控药剂在云南完成了对拔节期麦田草地贪夜蛾的防治试验, 结果表明, 不同类型农药7 d后的防治效果有显著差别。25%乙基多杀菌素WG、200 g/L氯虫苯甲酰胺SC、5%多杀霉素SC、5%甲维盐ME、10%虫螨腈SC、50 g/L虱螨脲EC、150 g/L茚虫威及10%高效氯氟氰菊酯EC防效为70.4%~97.2%, 拟除虫菊酯类杀虫剂10%高效氯氰菊酯EC和有机磷杀虫剂40%氧乐果EC的防效分别为49.8%和46.8%。生物农药32 000 IU/mg苏云金杆菌WP防效为65.1%, 100亿孢子/mL短稳杆菌SC、300亿孢子/g球孢白僵菌WP和10亿PIB/L斜纹夜蛾核型多角体病毒SC的防效为35.3%~41.9%。因此, 麦田草地贪夜蛾种群高密度下建议使用乙基多杀菌素、氯虫苯甲酰胺等化学农药防治, 低密度下可选择苏云金杆菌、短稳杆菌等生物农药, 研究结果为麦类作物草地贪夜蛾的应急防控提供了依据。 |
| 英文摘要: |
| Fall armyworm, Spodoptera frugiperda, can damage wheat plants from seedling to filling stage. Currently, there is no research on using insecticides to control fall armyworm in wheat fields in China. We performed an experiment to control fall armyworm on wheat at jointing stage using several insecticides recommended by Ministry of Agriculture and Rural Affairs. Our results showed that the control effects of different types of insecticides were different 7 days after spraying, The control efficacies of spinetoram 25% WG, chlorantraniliprole 200 g/L SC, spinosad 5% SC, emamectin benzoate 5% ME, chlorfenapyr 10%SC, lufenuron 50 g/L EC, indoxacarb 150 g/L EC and lambda-cyhalothrin 10% EC were between 70.4% and 97.2%; The control efficacy of beta-cypermethrin 4.5% EC and omethoate 40% EC were 49.8% and 46.8%, respectively. Biopesticide Beauveria bassiana 30 billion spores/mL WP had a control efficacy of 65.1%, while Empedobacter brevis 10 billion spores/mL SC, Beauveria bassiana 30 billion spores/mL WP and S.litura nucleopolyhedrovirus 1 billion PIB/L SC showed a lower control efficacy of 35.3%-41.9%. Hence, chemical insecticides, such as spinetoram and chlorantraniliprole are recommended for the control of fall armyworm at high density in wheat field and biopesticide, such as Bacillus thuringiensis and Empedobacter brevis could be used when the population density is low. Our results provide technical support for the emergency control of fall armyworm in wheat field. |
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