板栗中沟象(Isotocerus sp.)俗称蛀枝象,1985年经中国科学院动物研究所鉴定,为我国板栗上新发现的害虫,命名为板栗中沟象。该虫钻蛀板栗枝条,造成中空烂心,影响产量。据在江苏、浙江、安徽三省的部分成龄栗园调查,平均每株有该虫4.5～18头,受害株率达63.3％。经过十余年的研究,基本明确了该虫的生活习性、为害特点、发生因子,找到了适宜的防治方法,并在生产中应用,可增产30％左右。 Chestnut in the groove like (Isotocerus sp.) Commonly known as moth branches, in 1985 by the Chinese Academy of Sciences, Institute of Zoology identified as China’s chestnut newly discovered pests, named chestnut Zhonggou elephant. The worm drill chestnut branches, resulting in hollow rotten, affecting production. According to surveys conducted in some of the aging chestnut farms in Jiangsu, Zhejiang and Anhui provinces, the average number of pests per plant was 4.5 to 18, with a strain rate of 63.3%. After more than ten years of research, it basically clarified the habits, damage characteristics and occurrence factors of the pest and found appropriate control methods. The application of pest in the production can increase about 30%.