HUBEI AGRICULTURAL SCIENCES ›› 2020, Vol. 59 ›› Issue (4): 81-84.doi: 10.14088/j.cnki.issn0439-8114.2020.04.016

• Plant Protection • Previous Articles     Next Articles

Occurrence regularity of Myzus persicae (Sulzer) in tobacco growing area of Liangshan state, Sichuan province

WU Xing-long1a, FENG Chang-chun2, PU De-qiang1a,1b, WANG Yong2, LIU Dong-yang2, LIU Hong-ling1a, CHEN Yu1a, WANG Xiao-qiang1b, LONG Gang2, LI Chang-ming2, JIANG Lian-qiang2, LI Bin3, GUO Shi-ping3, LIU Yang3   

  1. 1a.Institute of Plant Protection;
    1b.Institute of Cash Crop Breeding and Cultivation,Sichuan Academy of Agricultural Sciences,Chengdu 610066,China;
    2.Liangshan State Company,Sichuan Tobacco Company,Xichang 615000,Sichuan,China;
    3.China National Tobacco Corporation,Sichuan Province Corporation,Chengdu 610041,China
  • Received:2019-05-08 Online:2020-02-25 Published:2020-05-13

Abstract: From 2017 to 2018, the occurrence of Myzus persicae in three tobacco growing counties in Liangshan state prefecture, Sichuan province was investigated with 5 point sampling method. The occurrence of Myzus persicae in three tobacco growing counties in Liangshan state prefecture has obvious temporal dynamics, but the annual difference is great. From 2017 to 2018, the occurrence of Myzus persicae in three major tobacco planting counties was a mixture of single-peak type and M type. The peak of Myzus persicae occurrence in the three counties in 2018 was 15~30 days earlier than that in the average year of 2017. It is found that temperature and rainfall are the main factors affecting the occurrence time and amount of Myzus persicae. Higher temperatures and earlier rainy seasons lead to earlier occurrence of peach Myzus persicae, therefore, the critical period of Myzus persicae control in tobacco growing areas of Liangshan state prefecture is from late May to late June. The specific time for prevention and control should be appropriately adjusted according to the current climate.

Key words: Liangshan state prefecture, Myzus persicae, occurrence law, biological control

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