应用环虫酰肼防治美国白蛾研究初报
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摘要
通过室内毒力测定、田间地面施药、航空施药及对非靶标生物影响等系列试验,测定环虫酰肼防治美国白蛾效果。结果表明:室内试验确定环虫酰肼1 000～2 000倍液对美国白蛾防效较好;在田间试验中确定适宜美国白蛾的防治浓度为0.90 L/hm~2;在后续的航空施药防治美国白蛾试验中,设置用药量0.75,0.90,1.05 L/hm~2 3个处理,药后14 d对美国白蛾的防效分别为91.6%,92.6%和97.6%;在对非靶标生物影响试验中,对小龙虾等水生生物相对安全。使用5%环虫酰肼悬浮剂防治美国白蛾有较好的效果,推荐使用剂量为0.75～1.05 L/hm~2。
A series of preliminary studies,such as the determination of virulence,field trials,aviation application,were used to determine the effect of chromafenozide on controlling of Hyphantria cunea(Drury).The results indicated that,1 000～2 000 times liquid of 5% chromafenozide suspension was better in laboratory test,and it was comfirmed that the appropriate concentration was 0.90 L/hm~2 in the field trials.In the subsequent aircraft application test,3 treatments was seted up with dosage of 0.75 L/hm~2,0.90 L/hm~2 and 1.05 L/hm~2,the control effect reached 91.6%,92.6% and 97.6%14 d after treatment,and was relatively safe to aquatic organisms such as crayfish.Therefore,5% chromafenozide suspension can be used to control H. cunea,and the recommended dosage of the agent is 0.75～1.05 L/hm~2.
A series of preliminary studies,such as the determination of virulence,field trials,aviation application,were used to determine the effect of chromafenozide on controlling of Hyphantria cunea(Drury).The results indicated that,1 000～2 000 times liquid of 5% chromafenozide suspension was better in laboratory test,and it was comfirmed that the appropriate concentration was 0.90 L/hm~2 in the field trials.In the subsequent aircraft application test,3 treatments was seted up with dosage of 0.75 L/hm~2,0.90 L/hm~2 and 1.05 L/hm~2,the control effect reached 91.6%,92.6% and 97.6%14 d after treatment,and was relatively safe to aquatic organisms such as crayfish.Therefore,5% chromafenozide suspension can be used to control H. cunea,and the recommended dosage of the agent is 0.75～1.05 L/hm~2.
引文
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[2] 杨忠岐,张永安.重大外来入侵害虫:美国白蛾生物防治技术研究[J].昆虫知识,2007,44(4):465-471.
[3] 林晓,邱立新,曲涛,等. 美国白蛾发生现状及治理策略探讨[J].中国森林病虫,2016,35(5):41-42.
[4] 农业部.第八届全国农药登记评审委员会第十七次全体会议纪要[J].今日农药,2016,(2):11-13.
[5] 程志明.杀虫剂环虫酰肼的开发[J].世界农药,2007,29(1):12-17.
[6] 聂开晟,侯春青,刘长令,等. 新型昆虫生长调节剂:环虫酰肼[J].农药,2001,40(2):42-43.
[7] 日本化药株式会社.5%环虫酰肼悬浮剂对河蟹、小龙虾毒性测定[Z],日本化药株式会社内部资料.
[8] 宋玉双.美国白蛾的综合管理[M].哈尔滨:东北林业大学出版社,2015.