塑膜覆盖棉田苗蚜综合防治技术研究  

The Technical Research of Intergrated Control on Cotton Aphid at Seedling Stage in Film─mulched Cotton Fields

作　　者：赵治萍[1] 

机构地区：[1]山西省农牧厅植保站

出　　处：《山西农业科学》1994年第4期33-36,共4页Journal of Shanxi Agricultural Sciences

摘　　要：１９８６～１９９１年，通过不同年型、不同生态环境试验，塑膜覆盖棉田苗期蚜虫的防治，可不采用杀虫剂拌种；地膜白色反射光可以拒避有翅蚜入田，推迟发生期；蚜虫初发时，利用无视异绒螨抑制棉蚜种群增长；盛发期，依靠麦田七星瓢虫等大敌的自然迁移控制蚜虫。如虫口达到防治指标，可采用氧化乐果涂茎防治。During 1986～ 1991, experiments were carried out in different years and ecotypes.The results showes that the insecticides may not be used as dressing in film─mulched cotton fields to comtrol cotton aphid at the seedling stage. The white refleced light of the film can prevent alate aphid from flying in the fields and delay the occurance period. At the aphid incipience Allithrimbium ignotum gave full play to inhibit its increase of population. At the pead period of aphid population, it is controlled relying on the natural migration of aphid natural enemies such as Sevenspot Lady Beeltles (Coccinella septempunctata L). Once the pest population reached the threshold of control, cotton stems may be painted with the Omethoate for control.

关 键 词：棉蚜 棉花 综合防治 害虫 

分 类 号：S435.622.1[农业科学—农业昆虫与害虫防治]