板栗是畅销国内外的名贵干果,鄂西地区近年来发展很快,并已获得较为可观的经济效益。但在板栗病虫害调查中,发现黑星天牛(俗称锯锯虫、铁牯牛;幼虫俗称老木虫)危害严重,且来势凶猛。去年在建始县红岩村调查,有虫株率不足3％;今年5月初和7月末调查,平均受害株率为22.8％和33.1％,最严重的标准地受害株率高达71.7％。 Chestnut is the best-selling dried fruit at home and abroad. The western Hubei Province has developed rapidly in recent years and has obtained relatively considerable economic benefits. However, in the investigation of chestnut pests and diseases, it was found that the black star cerambycida (commonly known as sawworms, ferroalways cattle; larvae commonly known as old woodworm) endanger the serious, and ferocious. Last year, a survey was conducted in Hongyan Village, Jianshi County, with less than 3% of the worm strains. In early May and late July of this year, the average victim strain rate was 22.8% and 33.1% respectively, with the most severe standard strain being up to 71.7%.