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独角犀(Xylotrupes gideon Linne),俗名吱喳虫,常年只见为害荔枝、菠萝。1990年5月该虫在我县桔园危害柑桔果树,虫量大,密度高,为害重。全县发生面积3300亩,占种植面积的10.8%,为害株率高的达86.4%,一般为46.5%。该虫一年发生一代,以幼虫在堆肥和有机质多的土壤中越冬,5月初羽化,盛期6月上中旬,一般每株成虫6—8头,少则2—3头。多集中在果树主干基部与地面的交界处为害,咬食树皮,形成凹凸不一的缺刻,严重时咬破基部树皮一周,影响果树生长,导致严重落果,甚至干枯死亡。
Unicorn rhinoceros (Xylotrupes gideon Linne), commonly known as squeamish pests, litchi see perennial damage, pineapple. In 1990 May the insects in my county orange garden endanger the citrus fruit trees, large amount of insects, high density, heavy damage. The county area of 3300 mu, accounting for 10.8% of the acreage, the strain rate of up to 86.4%, generally 46.5%. The worm occurs a generation a year to larvae in the compost and organic matter more soil winter, eclosion in early May, peak mid-June, generally 6-8 adults per plant, ranging from 2-3 head. Mostly concentrated in the fruit tree trunk base and the junction of the ground damage, bite the bark, the formation of uneven bump, serious bites the base bark for a week, affecting the growth of fruit trees, leading to serious fruit drop, or even death.