美国山核桃桃蛀螟的危害规律及药剂防治试验  

Damaging Law and Control Experiment of Dichocrocis punctiferalis on Carya illinoensis

作　　者：杨建华[1] 陈鹏[2] 李淑芳[1] 杨素琼[1] 泽桑梓[2] 苏一[2] 

机构地区：[1]云南省林业科学院漾濞核桃研究站,云南漾濞672500 [2]云南省林业科学院,云南昆明650204

出　　处：《西部林业科学》2010年第2期88-91,共4页Journal of West China Forestry Science

基　　金：云南省科技攻关项目(2006NG32);云南省技术创新人才培养计划(2007PY02-17)

摘　　要：在云南省漾濞县对美国山核桃金华、绍兴2个品种的桃蛀螟危害规律进行了调查,调查结果表明,8月中旬当地发生的桃蛀螟成虫开始飞到美国山核桃树的果实上产卵,8月下旬,初孵幼虫开始蛀果危害,其幼虫蛀果危害的高峰期发生在9月中下旬,此后进入危害的增缓期,至10月下旬,未发现新增蛀果危害。药剂防治试验结果表明:药剂防治美国山核桃桃蛀螟幼虫的最佳时期为9月上旬,用50%对硫磷乳油1 000倍液的防效达90%以上。The damaging law of Dichocrocis punctiferalis Guenee on two Carya illinoensis varieties,Jinhua and Shaoxing were studied in Yunnan.The results showed that the third generation adults of Dichocrocis punctiferalis started to attack nuts of Carya illinoensis in the middle period of August at Yangbi,newly-hatched larvae began to damage the fruit at last third of August.The fastigium of D.punctiferalis damage occurred in the middle and the last ten days of September.The results of the control experiment showed that the optimal period to D.punctiferalis using pesticides is the at the first ten days of September in the field,the control efficiency applying the parathion-methyl with concentration of 1000 was over 90 %.

关 键 词：美国山核桃 桃蛀螟 危害规律 药剂防治试验 

分 类 号：S763[农业科学—森林保护学]