摘要
通过对竹螟成虫灯诱结果的统计分析,竹螟的诱蛾量2011年比2010年增长了76%,其中竹织叶野螟Algedonia coclesalis Walker的增长更是达到了233.5%,成虫数占其总诱蛾量的78%。表明竹螟虫口增长趋势明显,而竹织叶野螟的增长趋势更为显著,仍为优势虫种;竹织叶野螟越冬代成虫羽化高峰期在5月18日—6月8日,其诱蛾量占总诱蛾量的84.32%;根据竹螟成虫诱蛾量预测幼虫的发生量与实际调查幼虫发生量相比较,准确率可达到93.7%。
Statistical analysis of the result of light trap of bamboo moth adults showed the trapping amount of bamboo moths in 2011 increased by 76.0% compared with that in 2010. Among them,the trapping amount of Algedonia coclesalis Walker increased by 233.5% and the adults of A. coclesalis accounted for 78% of the total indicating an obvious increase trend of the bamboo moth population and A. coclesalis was the dominant species. A. coclesalis adult of the overwintering generation emerged mainly between the 18th of May and 8th of June when the trapping amount was 84. 32% of the total. The accuracy reached 93.7% in forecasting the amount of larvae according to the trapping amount of adult.
出处
《中国森林病虫》
北大核心
2012年第2期36-38,共3页
Forest Pest and Disease
关键词
竹螟
种群动态
预测预报
bamboo moth
population dynamics
forecast
