晋中梨小食心虫寄生性天敌昆虫调查  

Investigation on Parasitic Insect Natural Enemies of Oriental Fruit Moth in Jinzhong

作　　者：张纯[1] 尤希宇[2] 赵龙龙[2] 孟豪[2] 马瑞燕[2] 

机构地区：[1]山西省科技情报研究所,山西太原030001 [2]山西农业大学农学院,山西太谷030801

出　　处：《山西农业科学》2012年第4期389-392,共4页Journal of Shanxi Agricultural Sciences

基　　金：国家公益性行业(农业)科研专项(201103024)

摘　　要：梨小食心虫是北方果树最严重的食心虫之一,为了探索和利用其天敌昆虫资源,选择山西省太谷地区具有代表性的2类样地,对其天敌资源进行了调查。研究发现,该地区的2种优势寄生性天敌种为舞毒蛾黑瘤姬蜂和亮黑伊乐寄蝇,该2种天敌室内羽化的高峰期多分布在0:00—13:00时段。在果树自然放养的A地,2种天敌并存,但以亮黑伊乐寄蝇为优势种。在人工管理频繁的B地,舞毒蛾黑瘤姬蜂为优势天敌种,亮黑伊乐寄蝇极少发生,并且天敌推迟发生。调查还发现,在梨小食心虫种群的盛发期,其数量变化和2种天敌的发生呈负相关,7月份后,2种天敌可对梨小食心虫形成明显的控制作用。Oriental fruit moth is one of the most serious fruit tree borer insects in northern China. To explore and utilize its insect natural enemies resources, we selected two types of representative sample areas and investigated their natural insect enemy resourees. It showed that the two dominant natural parasitic insect enemy of oriental fruit moth were Coccygomimus disparis and Elodia morio, and the eclosion peak period of the two natural enemies were located in the 0：00-13：00 indoor condition. The two natural enemies co-existed in A area, but the parasitic fly was the dominated natural enemy in which the fruit trees developed naturally. However, the parasitic wasp was the dominated species, the parasitic fly rarely occurred and the occurrences of the two natural enemies were all delayed in fine management B area. In the survey the oriental fruit moth population and the two natural ene- mies＇ dynamics showed a significant negative correlation in high density periods. The two natural enemies would successfully con- trol the oriental fruit moth after July.

关 键 词：梨小食心虫 生物防治 寄生性天敌 节律 寄生率 

分 类 号：S436.612[农业科学—农业昆虫与害虫防治]