Diversity of Insects Trapped by Jiaduo Frequoscilation Pest-killing Lamp in Vegetable Fields in Jianghan Plain of China

The trapping effect of Jiaduo frequoscilation pest-killing lamp was studied in vegetable fields in Jianghan plain from 2009 to 2010. The results showed that the insects trapped by the lamp were mainly Lepidoptcra and Coleoptera insects. There was no significant difference between the trapped numbers in the two years, but there were significant difference among the months. The peak of species richness was nearly 50 ; the diversity index was from 2.0 to 4.0, and the even- ness index varied from 0. 3 to O. 8, while the dominant concentration index of insects varied from 0.05 to 0. 50. It was helpful to detect and prevent insect pests ac- cording to their peak occurrence time inferred by trapping results.

佳多频振式杀虫灯监测刚竹毒蛾

应用佳多频振式杀虫灯开展刚竹毒蛾成虫监测试验,结果表明:该虫在永安1年发生3代,世代明显,各代成虫历期41～49d,而盛期只有12～16d,羽化时间较为集中。3代成虫夜间活动规律均不相同:无月光夜晚,越冬代和第1代成虫均产生两个明显高峰值,而第2代仅出现1个高峰期;在有月光的条件下,越冬代成虫亦只形成1个显著的高峰。