上海地区豆野螟发生规律及生物学特性的初步研究  

Occurrence and Biological Characteristics of Maruca testulalis Geyer in Shanghai

作　　者：赵胜荣[1] 杨娴[2] 孙兴全[2] 

机构地区：[1]上海市松江区蔬菜技术推广站,上海201611 [2]上海交通大学农业与生物学院,上海200240

出　　处：《上海交通大学学报（农业科学版）》2009年第2期162-166,共5页Journal of Shanghai Jiaotong University(Agricultural Science)

摘　　要：研究了上海地区豆野螟的生物学特性和近似消化率。该虫每年发生4～5代,以蛹越冬,幼虫期总食豆荚量为34.36mg。田间落花调查1龄、2龄、3龄、4龄、5龄幼虫比率分别为51.23%、18.83%、19.44%、6.79%、3.70%。蛹重、蛹长、蛹宽平均分别为0.04±0.01g、11.13±0.45mm、2.84±0.13mm。雌雄成虫寿命分别为6.00±1.22d和5.58±0.59d。雌雄性比1:0.54。The biological features and approximate digestibility ofMaruca testulalis Geyer were observed in Shanghai. The insects have 4-5 generations per year and overwinter as a pupa. At average, one individual consumes about 34.36 mg bean-pods at the stage of larva. The ratio of different instar larvae at flower fallen in field is 51.23%, 18.83%, 19.44%, 6.79%, 3.70%, respectively. For Maruca tesulalis Geyer, the weight, length and width of pupaes are 0.04±40.01 g, 11.13±0.45 ram, 2.84±0.13 mm. The longevity of female and male is 6.00±1.22 and 5.58±0.59 days, respectively. The sexual ratio of female to male is 1：0.54.

关 键 词：扁豆 豆野螟 发生规律 生物学特性 

分 类 号：Q969.42[生物学—昆虫学]