延边地区舞毒蛾生活史和幼虫发生期预测模型研究  

Research on Life history of Lymantria dispar and Prediction Model for the Occurrence of Larvae in Yanbian

作　　者：李永德[1] LI Yongde(Agricultural College of Yanbian University, Yanji, Jilin 133002, China)

机构地区：[1]延边大学农学院,吉林延吉133002

出　　处：《林业调查规划》2017年第4期47-50,共4页Forest Inventory and Planning

基　　金：国家自然科学基金项目(31660080)

摘　　要：通过野外调查的方法,对吉林省延边地区舞毒蛾的生活史及幼虫孵化率进行了研究。结果表明,舞毒蛾在延边地区1年发生1代,以完成胚胎发育的"卵内幼虫"越冬。翌年5月上旬;杨树将要萌芽时幼虫开始孵化出壳。幼虫孵化始盛期为5月中旬,高峰期为5月下旬,末期为6月上旬;幼虫在7月上旬开始老熟化蛹,化蛹始盛期为7月中旬,高峰期为7月下旬,末期为8月上旬;成虫在7月中旬开始羽化,羽化始盛期为7月下旬,高峰期为8月中下旬,末期为8月底至9月初;产卵始盛期在7月中旬,高峰期为8月中下旬,末期在8月底至9月初;卵在8月底开始发育成较为完全的幼虫胚胎,随之进入滞育状态。根据舞毒蛾幼虫孵化率与日均温值的相关性,建立线性回归模型Y_1=12.074 2X_1-139.190 8来测报舞毒蛾幼虫的当日孵化率,并进行了回测验证。The field survey studied the life history of Lymantria dispar and larvae hatching rate in Yanbi- an of Jilin. The results showed that Lymantria dispar in Yanbian bred a generation every year to complete the overwintering of ＂larvae in eggs＂ with embryonic development . In early May next year, the budding poplar accompanied with the hatching of larvae. The hatching of larvae was prime in mid-May, climax in late May, and terminal in early June. Larvae aged to pupation in early July, which was prime in mid-Ju- ly, climax in late July, terminal in early August. Adult insects began to eclosion in mid-July with the prime period in late July, the peak in mid-to-end August and the terminal period from late August to early September. The spawning period was prime in mid-July, climax in mid-to-end August, and terminal in late August to early September. In the end of August, eggs developed into complete larvae embryos and entered a diapause state. Based on the relevance of the hatching rate of Lymantria dispar larvae and the daily average temperature, the linear regression model Y1 = 12. 074 2X1 - 139. 190 8 was established to predict the hatching rate of Lymantria dispar larvae that day, which was proved with the actual data.

关 键 词：舞毒蛾 生活史 幼虫孵化率 日均温 测报模型 延边地区 

分 类 号：S763.3[农业科学—森林保护学]