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双齿长蠹食性复杂,是危害树木、木材和竹材的一种严重性钻蛀害虫,主要寄主植物除国槐、柿树、栾树以外,还可以危害合欢、白蜡、刺槐、紫薇、紫荆、紫滕等多种树木和竹类。1980年在云南省昆明地区首次发现双齿长蠹(见图)。2008年3月底在林木有害生物越冬基数调查时,北京地区再次发现双齿长蠹在国槐和栾树1至2年生枝条上越冬,并于4月中旬成虫产卵期危害法桐树干,危害株率达20%。
Bifidus longicornosus is a food-borne complex pest, which is a serious boring pest that endangers trees, wood and bamboo. The main host plants, besides Sophora japonica, Persimmon tree and Koelreuteria paniculata, can also harm Acacia, Ash, Locust, Crape myrtle, Bauhinia, Violet Teng and other trees and bamboo. In 1980 in Kunming, Yunnan Province for the first time found double-headed beetles (see photo). At the end of March 2008, during the investigation of the pest overwintering trees in Beijing, it was found again in Beijing that the winged winter winged Sophora and Koelreuteria branches on the 1-2 year-old branches and the mid-April adult eggs spawned during the spawning period. Rate of 20%.