植保无人机不同喷液量对抗性二化螟防治效果的影响  

Effect of different spray amounts of plant protection drones on the control effect of the Chilo suppressalis

作　　者：方铁飞 姚晓明 周宇杰 FANG Tiefei;YAO Xiaoming;ZHOU Yujie(Zhuji Agricultural Technology Extension Center,Zhuji 311800,Zhejiang;Zhejiang Provincial Plant Protection Quarantine and Pesticide Management Station,Hangzhou 310009,Zhejiang)

机构地区：[1]诸暨市农业技术推广中心,浙江诸暨311800 [2]浙江省植保检疫与农药管理总站,浙江杭州310009

出　　处：《浙江农业科学》2024年第7期1663-1666,共4页Journal of Zhejiang Agricultural Sciences

基　　金：浙江省粮油技术团队项目;绍兴市科技计划项目(2018C20014)。

摘　　要：采用不同喷液量的植保无人机防控抗性二化螟,研究其对二代、三代二化螟防治效果的影响。结果表明,植保无人机的喷液量与二化螟防治效果正相关,随着喷液量的增加,保苗效果和杀虫效果均随之增加,667 m^(2)喷液量为4 L的效果最佳,喷液量为3 L的效果次之,喷液量为2 L的效果较差。采用相同药剂、药量和喷液量时,二代二化螟的效果要明显好于三代二化螟。667 m^(2)喷液量为4 L处理后,二代二化螟药后15、20 d的保苗效果分别达90.97%和86.09%;三代二化螟在处理药后15、20 d的保苗效果为66.13%和56.68%。因此,在晚稻生产期或高温季节使用植保无人机防治抗性二化螟时建议667 m^(2)喷液量尽量超过4 L。Plant protection drones with different spray amounts were used to control resistant Chilo suppressalis,and the control effect of it on the second and third generations of Chilo suppressalis were studied.The results showed that the spray amounts of the plant protection drone was positively correlated with the control effect of the Chilo suppressalis,and with the increase of the spray amounts,the seedling preservation effect and the insecticidal effect increased,and the best spray amount of 667 m^(2) was 4 L,followed by the spray amount of 3 L,and the spray amount of 2 L was poor.When the same agent,dosage and spray amount were used,the effect of the second-generation was significantly better than that of the third-generation Chilo suppressalis.After 667 m^(2) spraying with 4 L treatment,the seedling preservation effects of the second-generation Chilo suppressalis were 90.97%and 86.09%on the 15 and 20 days after treatment,respectively,and the seedling preservation effects of the third-generation Chilo suppressalis were 66.13%and 56.68%on the 15 and 20 days after treatment.Therefore,it is recommended that the spray amount of 667 m^(2) should exceed 4 L when using plant protection drones to control resistant Chilo suppressalis in late rice production period or high temperature season.

关 键 词：植保无人机 不同喷液量 抗性二化螟 防治效果 

分 类 号：S435[农业科学—农业昆虫与害虫防治]