棉花害虫综合防治中高效低毒农药的选用技术

Selection and application of Pesticides with High Effect and Low Toxicity for the Control of Insects on Cotton

经过调查研究,明确了换种转B.t基因抗虫棉后棉田虫害的新变化,制订了以防治棉蚜和棉叶螨为重点的兼治棉铃虫及其他害虫的新策略,并通过近几年的农药田间药效试验,鉴定出用48%多杀霉素悬浮剂、2.5%高效氯氟氰菊酯微乳剂、4.5%高效氯氰菊酯乳油、18%高氯·辛乳油、0.5%甲氨基阿维菌素苯甲酸盐乳油防治棉铃虫;用10%吡虫啉可湿性粉剂、10%烟碱水剂、20%啶虫脒可湿性粉剂防治棉蚜;用20%哒螨灵可湿性粉剂、1%阿维菌素乳油防治棉叶螨等高效低毒农药及其配套使用技术。

Authors of this article ma d e clear a new change of the cotton field insect pest after growing the B.t transgenic insect-resistant cotton,formulate d the new tactics on mainly preventing and controlling the cotton aphid and cotton red spider mite while controlling bollworm and other insects through investigation and study,and appraise pesticides and their operating techniques,such as for control of bollworm by using Spinosad48%SC,2.5%beta-cyfluthrin ME ,4.5%beta-cypermethrin EC ,18%phoxim - beta-cypermethrin EC and0.5% emamectin benzoate EC ,prevention and control of the cotton aphid by using10%imidacloprid WP ,10%nicotine As and acetamiprid 20% WP ,and prevention and control of the cotton red s pider mite by using20%pyridaben WP ,1%a abametin EC through field experiment of pesticide effect in recent years.