栗实象是我国华北、华中板栗产区的主要蛀果害虫,果害率一般达20—50％,严重时高达90％。受害果在贮藏期间易发霉腐烂,严重影响食用、作种和出口。前人曾用六六六粉在栗苞和栗林地混拌毒土毒杀越冬幼虫,或用二硫化碳、溴甲烷熏蒸栗果等方法进行防治,收到一定的杀虫效果。由于南 The chestnut real image is the main fruit borer pests in the chestnut producing areas of North China and Central China. The fruit damage rate is generally 20-50% and in severe cases it is as high as 90%. Fruit damage during the storage moldy decay, seriously affecting the food, as species and exports. Previously, 666 powder was used to control overwintering larvae by mixing poisonous soil with chestnut and chestnut woodland, or by using carbon disulfide and methyl bromide to evaporate chestnuts and so on. Some insecticidal effects were received. Due to the south