Occurrence Regularity of Myzus persicae and Aphid- transmitted Virus Disease in Zhenyuan County of Guizhou

• 作者: Chen Jie Tang Jun Yang Jing Yang Rusong Yang Yan Zou Guangjin
• 来源期刊: Plant Diseases and Pests(植物病虫害研究：英文版)
• 学科: 农学
• 年，卷（期）: pdapzwbchyj_2016,（4）
• 页码范围: 19-22
• 页数: 4页
• 分类号: S1

摘要

[Objective]The paper provided a reference for establishment of effective prevention mechanism against aphids in Zhenyuan tobacco area. [Method]The initial population quantity of aphids in early spring,migration of winged aphids,occurrence regularity and damage status of Myzus persicae and aphid-transmitted virus( PVY + CMV) were investigated in Zhenyuan County from 2014 to 2015 using 10-point checkerboard sampling method,yellow dish trapping method and 5-point sampling method. [Result] The total amount of aphids in Brassica campestris was the largest among overwintering hosts,with an average of 18. 44 specimen / plant. The migration of winged aphids presented bimodal pattern; the population dynamics of wingless aphids presented unimodal pattern,and the occurrence peak was from May to June.[Conclusion]Field control against M. persicae in tobacco fields should be conducted from mid May to early June.