摘要
为构建玉米螟绿色防控技术体系,在肇东和宾县开展化学杀虫剂减量施用及新型Bt制剂防治玉米螟的田间试验。结果表明:两个添加助剂的杀虫剂处理在施药量减少30%后对玉米螟的防治效果均达到84%以上,减药加入助剂后的高效氯氟氰菊酯处理的防效要比常规的高效氯氟氰菊酯处理防效略高,挽回损失率在4.6%~6.5%,增产8.2%~8.7%。氯虫苯甲酰胺常规用量处理对玉米螟的防效最高,两试验地防效分别为92.5%和92.9%,在肇东和宾县两地的挽回损失率分别是6.8%和4.8%,增产10%以上。Bt制剂比化学杀虫剂的防效要低,两地防效均在81%以上,挽回损失率4.4%以上,增产率5.2%以上。因此,减量施用化学杀虫剂添加助剂的防控技术和新型Bt制剂均可有效防控玉米螟,可以作为玉米螟绿色防治技术手段应用于生产实践。
In order to construct green control technology system of corn borer,field trials using chemical pesticide reduction techniques and new Bt biological agents to control corn borer were conducted in Zhaodong and Bin County of Heilongjiang.Based on the analysis of control effect,restore loss rate and yield in the two areas,the results showed that the control effect of the two pesticide reduced by 30%treatments with auxiliary on corn borer was over 84%;The control effect of reduction Cyhalothrin adding auxiliary treatments was slightly higher than routine Cyhalothrin;The restore rate was between 4.6%and 6.5%;The yield was increased 8.2%-8.7%.The control effect of chlorantraniliprole was the highest,they were 92.5%and 92.9%;The restore losses rate in Zhaodong and Bin County were 6.8%and 4.8%respectively;The yield was increased by more than 10%.The control effect of Bt was slightly lower than chemical agent,they were over 81%;The restore losses rate were over 4.4%and the yield increase rate were over 5.2%.In conclusion,the reduction application technology of chemical insecticide adding auxiliary and the new Bt agent can effectively control the corn borer.They can be used as the green control technology to control corn borer in production.
作者
王宇
王克勤
刘兴龙
WANG Yu;WANG Ke-qin;LIU Xing-long(Institute of Plant Protection,Heilongjiang Academy of Agricultural Sciences/Scientific Observing and Experimental Station of Crop Pests in Harbin,Ministry of Agriculture and Rural Affairs,Harbin 150086,China)
出处
《黑龙江农业科学》
2022年第1期34-39,共6页
Heilongjiang Agricultural Sciences
基金
黑龙江省农业科学院“农业科技创新跨越工程”专项(HNK2019CX14)
国家重点研发计划(2017YFD0201803)。
