栗实象鼻虫的生活史及其防治技术

• 作 者: 雷鸣宇
• 机 构: 陕西省商洛市林业站 726000
• 出 处: 现代种业
• 发表日期: 2005年04期
• 关键词: 栗实象鼻虫 栗实象甲 危害率 体长 板栗 蛀食 形态特征 生活史 栗实 幼虫

栗实象鼻虫,简称栗实象,又叫栗实象甲。是商洛市板栗产区的主要害虫之一,普遍蔓延于全市各县(区)。危害率为25%～40%,有的地方高达70%以上。以幼虫蛀食果实,被害的栗子充满虫粪,不堪食用,也不能作种子,且易霉烂,不便储藏。一、形态特征成虫:虫体黑色,体长6.5～9mm。头管细长,是

Chestnut weevil, referred to as chestnut real image, also known as chestnut real like a. It is one of the major pests in the chestnut producing area of ​​Shangluo City, and it has generally spread to all counties (districts) in the city. Hazard rate of 25% to 40%, in some places up to 70%. To larvae eat fruit, the chestnuts are full of insect manure excrement, can not eat, can not be used as seeds, and easy to rot, inconvenience storage. First, morphological characteristics Adult: black body, body length 6.5 ~ 9mm. Slender head, yes