摘要
发现陕西棉田叶螨主要有截形叶螨（ＴｅｔｒａｎｙｃｈｕｓｔｒｕｎｃａｔｕｓＥｈａｒａ）、二斑叶螨（Ｔ．ｕｒｔｉｃａｅｋｏｃｈ）、朱砂叶螨［Ｔ．ｃｉｎｎａｂａｒｉｎｕｓ（Ｂｏｉｓ）］．截形叶螨为优势种群，在关中地区每年发生１１～１３代，发生期较纯种棉田提前２０～２５ｄ．发生数量与栽培制度、地膜覆盖栽培、棉花长势、温湿度组合及降雨量有密切关系．早春铲除田间地边米蒿、刺儿菜等叶螨的转主寄主，并用４０％久效磷２００倍液或４０％氧化乐果１００倍液滴心，麦收后及时灌水，追施速效氮肥；中后期选用对天敌杀伤力小的浏阳霉素或扫螨净叶面喷雾，是控制叶螨的重要措施．
Research results show: The leaf mites in Shaanxi cotton fields have 3 species, Tetranychus truncatus Ehara, T.urticae Koch and T.cinnarinus (Bois). Tetranychus truncatus Ehara is the dominant. It propagates 11-13 generations in Guanzhong cotton fields every year. Leaf mites in wheat-cotton alterate planting fields propagates 20-25 days faster than that in pure breeding cotton fields. Their occurring peak seasons are both of the first ten days in June and August. Birth amounts have dose relationship with cultivated system, ground cover cultivation, cotton growtn vigour, temperature/humidity and rainfall. The important ecological measures to control leaf mites are the following: to eradicate the tropoparastes such as Cephalanoplos segetum (Bunge) kitan in early spring; to use 40% Azodrin dilutes 200 times of water of 40% Diamethoate oxide dilutes 100 times of water as tip dripping; to carry out irrigation regime after the harvest period; to spray quickacting fertilizer; to spout Liuyangmycini or other miticides at the middle and late stages.
出处
《陕西师范大学学报（自然科学版）》
CAS
CSCD
北大核心
1997年第S1期137-141,共5页
Journal of Shaanxi Normal University：Natural Science Edition
关键词
麦棉间套
叶螨
种群动态
生态控制
wheatcotton alterate planting, leaf mites, population developments, ecological control
