防护林科技
防護林科技
방호림과기
PROTECTION FOREST SCIENCE AND TECHNOLOGY
2015年
5期
63-64
,共2页
敌敌畏%柳蓝叶甲%虫口减退率
敵敵畏%柳藍葉甲%蟲口減退率
활활외%류람협갑%충구감퇴솔
dichlorvos%Plagiodera versicolora%decrease rate of insect
在7月上旬，将80%敌敌畏稀释成4种浓度，对野外馒头柳上的柳蓝叶甲进行田间对比试验，结果表明：不同浓度配比其虫口减退率有显著差异，随着浓度增加，防治效果也逐渐提高；从保护天敌和避免害虫产生抗药性等综合因素考虑，采用1∶500倍的80%敌敌畏防治柳蓝叶甲较适宜。
在7月上旬，將80%敵敵畏稀釋成4種濃度，對野外饅頭柳上的柳藍葉甲進行田間對比試驗，結果錶明：不同濃度配比其蟲口減退率有顯著差異，隨著濃度增加，防治效果也逐漸提高；從保護天敵和避免害蟲產生抗藥性等綜閤因素攷慮，採用1∶500倍的80%敵敵畏防治柳藍葉甲較適宜。
재7월상순，장80%활활외희석성4충농도，대야외만두류상적류람협갑진행전간대비시험，결과표명：불동농도배비기충구감퇴솔유현저차이，수착농도증가，방치효과야축점제고；종보호천활화피면해충산생항약성등종합인소고필，채용1∶500배적80%활활외방치류람협갑교괄의。
In early July,80% dichlorvos was diluted to four concentrations,Plagioderaversicolora in the field were conducted comparison experiments.Result shows that:decrease rate of Plagioderaversicolora under different con-centration ratios have significant differences.The control effect gradually increases with the increase of the concen-tration.From the viewpoint of protecting natural enemies and avoid pest resistance,adopting 80% dichlorvos (1:500 times)to prevent Plagioderaversicolora is more appropriate.
