性诱剂和糖醋液对苹果园苹果小卷叶蛾的监测和防治效果

为给苹果小卷叶蛾的预测预报和防治提供科学依据,在山西省运城市和临汾市不同苹果园中研究了性诱剂和糖醋液2种方法对苹果小卷叶蛾的监测和防治效果。结果表明:2种方法诱集到的苹果小卷叶蛾成虫动态都呈现出一年4代的发生规律,且趋势一致。不同果园中性诱剂和糖醋液对苹果小卷叶蛾的诱集量均差异显著,性诱剂诱集总量最高是糖醋液诱集总量的5.95倍,且在不同果园中2种防治方法均能显著降低枝条受害率,而二者之间无显著差异。同时,2种防治方法在大面积单植苹果园中对苹果小卷叶蛾第1代幼虫的防治效果分别为59.10%和43.18%,对第3代幼虫的防治效果分别为61.54%和46.15%,均高于其他类型苹果园,且对第3代幼虫的防治效果好于第1代幼虫。因此,性诱剂和糖醋液都可用于苹果园苹果小卷叶蛾的监测与防治,且在大面积单植苹果园内连续使用效果较好。

Monitoring and Controlling Efficacy of Sex Pheromone and Sugar-vinegar Liquid against Adoxophyes orana beijingensis in Apple Orchards

The monitoring and control efficacy of sex pheromone and sugar-vinegar liquid against Adoxophyes orana beijingenisis was evaluated in apple orchards in Yuncheng City and Linfen City, Shanxi Province. The results showed that A. orana beijingenisis occurs four generation per year and the adult population dynamics monitored by these two methods was consistent. However, the moths trapped by sex pheromone were significantly higher than those trapped by sugar-vinegar liquid in three apple orchards, up to 5.95 times more. Branch damage rate declined significantly in the apple orchards treated by sex pheromone or sugar-vinegar liquid, though there was no significant difference between these two treatments. The control efficacies of sex pheromone and sugar-vinegar liquid against the first generation larvae of A. orana beijingenisis were 59.10% and 43.18%, respectively, and against the third generation larvae, 61.54% and 46.15%, respectively. Both the sex pheromone and sugar-vinegar liquid showed much higher control efficacies in mono cropping than in mixed cropping apple orchards, and higher control efficacies against the third than the first generation larvae. Therefore, both the sex pheromone and sugar-vinegar liquid can be used for the monitoring and control of A. orana beijingenisis in apple orchards, especially in large-area mono cropping apple orchards.