上海中华猕猴桃上的昆虫多样性研究

摘要

Taking kiwifruit varieties ‘Jinkui’and ‘Xuxiang’as the objects,the species and diversity of insects on kiwifruit tree were investigated preliminarily.The results showed that the proportion of phytophagous insects on ‘Jinkui’and ‘Xuxiang’were 72.45% and 87.50% respectively.Among them,the species of sucking insects were the most,accounting for 87.32% and 75.71% of the phytophagous insects respectively. With the leaf expansion of the host trees,the insect diversity index also fluctuated and the diversity index was higher in June and August.Ricania Sublimbata Jacobi was the dominant pest on the two kiwifruit varieties,but the dynamics of the pest were different.Ladybirds and mantes were the dominant natural enemy insects on the two kiwifruit varieties,and the insect diversity index on ‘Jinkui’was higher than that on ‘Xuxiang’.%以‘金魁’和‘徐香’两个猕猴桃品种为研究对象，对猕猴桃树上的昆虫种类及其多样性进行了初步调查。结果表明：‘金魁’和‘徐香’上植食性昆虫种类比例分别为72．45％和87．50％，其中刺吸类昆虫种类最多，占植食性昆虫的87．32％和75．71％。随着猕猴桃树的展叶，昆虫多样性指数也随之波动，在6月份和8月份昆虫多样性指数较高；猕猴桃树两个品种上的主要害虫均为柿广翅蜡蝉，但发生动态有所不同；两个品种上的天敌昆虫种类以瓢虫和螳螂为主，‘金魁’上的天敌昆虫多样性高于‘徐香’。