我省板栗年产量为6000多吨。近年来,板栗区虫害肆虐,其中危害最严重的是栗实象鼻虫。栗实象鼻虫为种传检疫性害虫。成虫全身黑褐色,被覆白色鳞片,大致呈“平”字形,头部着生有喙管,雌虫触角呈膝状,着生于喙基部1/3处,左右各一;三对足,跗节为双齿状。该虫2年一代,入土越冬。7月成虫羽化,8月出土产卵。成虫不具趋光性,有假死性,可用人工震树法捕捉。8月中旬至板栗采收前为成虫产卵危害期:雌虫利用特有的细长喙管,先在栗苞上钻一深槽,再 Chestnut production in our province for more than 6,000 tons. In recent years, chestnut insect wreak havoc, the most serious of which is the chestnut weevil. The chestnut weevil is a species of quarantine pests. Adult body dark brown, covered with white scales, roughly “flat” shape, the head was born beak tube, female tentacles were knee-like, was born in the beak base 1/3, one on each side; three pairs of feet , Festival is bidentate. The insects 2 generation, overwinter. Adult feathers in July, August unearthed eggs. Adults do not have phototropism, there is a lethality, can be used to capture artificial earthquake tree method. Mid-August until chestnut harvest spawning pre-adult hazards: the female use of the unique slender beak tube, drill a deep groove on the chest bud, and then