北京地区苹小卷叶蛾发生规律及防治措施

在北京市房山区调查了果园苹小卷叶蛾的发生情况，采用室内和田间相结合的方法研究其生物学特征 ，田间进行以生物防治为主的防控试验。结果表明，该虫在房山地区一年发生 3代，在 5月中下旬和 6月下旬有两个发生高峰期；苹小卷叶蛾第一代防治适期在 5月底至 6月初，第二代防治适期为 7月下旬。不同诱捕器试验发现，三角诱捕器诱蛾数量高于船型、水盆型诱捕器。苏云金杆菌 +糖醋液 +松毛虫赤眼蜂组合防治效果比单独使用性诱剂、松毛虫赤眼蜂的防治效果好，不同防治方法组合后，卷叶率平均下降了 24.1%。

Occurrence Regularity and Control Measures of Adoxophyes Orana in Beijing

The occurrence of adoxophyes orana in orchids in Fangshan District in Beijing was investigated, and the biological characteristics of adoxophyes orana were studied by a combination of indoor and field methods. Biological control experiments were conducted in the field. The results indicate that adoxophyes orana occurs three generations a year in Fangshan District, and there are two peak periods of occurrence in middle-late May and late June respectively; The optimum period for control of the first generation of adoxophyes orana is from the end of May to the beginning of June, and for control of the second generation is in late July. The results of trapping tests show that the number of moths trapped by the triangular trap is larger than that of boat shaped trap and basin trap; sweet and sour liquid, trichogramma dendrolimi have significant control effects, whose rates of infested leaves and infested fruits are 5.92% and 0.52% respectively, which are significantly superior to single control technology (P<0.05); using the combination of bacillus thuringiensis + sweet and sour liquid + trichogramma dendrolimi is more effective than solely using sex attractant or trichogramma dendrolimi. The rate of roll leaf drops by an average of 24.1% after using a combination of different control methods.