摘要
一字竹象虫是竹子重要的笋期害虫,主要为害毛竹、篌竹、刚竹、红竹、淡竹等竹笋、嫩竹。该虫在安吉县毛竹林内二年一代,篌竹等小杂竹林内一年一代。为给一字竹象虫的综合防治提供测报依据,笔者于1984年至1991年定点对一字竹象虫的发生情况进行观察,结果认为:一字竹象虫成虫出土高峰日与当年3月份的平均气温呈负相关,其预测式为(?)=25.8479-2.217(?);一字竹象虫的幼虫为害株率与上一年的幼虫为害株率呈正相关,其预测式为:(?)=17.6676+0.9049x((?),X均为被害株率的反正弦代换值)。
Otidognathus davidis Fair.is an important bamboo shoot- boring insect to Phyllostachys pubescens,Ph.nidularia etc.It is one generation per two.years or a year on Ph.pubescens stand and Ph.nidularia stands,respectively at Anji county,Zhejiang province.The studies were conducted during 1984～1991 and the results showed that peak date of the adult emergence from the soil was negative correlation with mean temperature of March. The forecast equation was (?)=25.8479-2.217x.The percentage of damaged culms by larvae of O.davidis was positive correlation with that of last year and the forecast equation was (?)=17.6676+ 0.9049x.
出处
《竹子研究汇刊》
北大核心
1992年第4期85-89,共5页
Journal of Bamboo Research
关键词
一字竹象虫
发生期
发生量
预测
Otidognathus davidis Fair
occurrence period
occurrence number
forecast
