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性诱剂监测邵阳烟区斜纹夜蛾的发生动态
刘昭伟
0
(湖南省烟草公司邵阳市公司)
摘要:
为探明邵阳烟区斜纹夜蛾的为害规律及影响诱蛾效果的关键气象因子,2015~2017 年在湖南省邵阳县利用性诱剂对斜纹夜蛾进行了三年的诱捕监测,并对诱蛾量与气象因子进行了相关性分析。结果表明,在邵阳烟区斜纹夜蛾发生高峰为5月上旬至7月下旬,6月中下旬达到最大值。诱蛾量与气象因子相关因子分析表明,斜纹夜蛾诱蛾量与日平均气温、日最高气温、日最低气温极显著相关,即斜纹夜蛾诱蛾量随气温的升高而增多。因此,在邵阳烟区斜纹夜蛾的防治最佳时期在5至7月,在此期间如遇干旱高温天气,斜纹夜蛾繁殖生长速度将加快,群体数量将增加,应当加强对斜纹夜蛾的防治力度,一方面增加性诱剂安置密度,另一方面科学的使用化学农药,从而达到防治目的。
关键词:  性诱剂  斜纹夜蛾  发生动态
DOI:
投稿时间:2019-01-04修订日期:2019-01-04
基金项目:邵阳市烟草专卖局(公司)科技项目“邵阳烟草病虫害绿色防控技术体系构建及关键技术集成研究”(sy13-15ky040)。
Spodoptera litura Fabricius Dynamics in Shaoyang Detected withSex Pheromone Traps
()
Abstract:
To understand the noctuidae pest dynamics of tobacco in Shaoyang and Trap catches were correlated to climatic factors, Sex pheromone traps were used to monitor their population dynamics for 3 years. The result show, The peak periods of Spodoptera litura are during late April to late May and October to November, and minor peaks occur during June to September. Trap catches were correlated to climatic factors, which show that the S. litura catches increased with rise in temperature. Therefore, the best period for prevention and control of S. litura in Shaoyang deteced is from May to July. During this period, in the case of drought and high temperature, the growth rate of S. litura will increase, the number of population will increase, and the species of S. litura should be strengthened. Prevention and control, on the one hand, increase the density of sexual attractants, on the other hand, scientific use of chemical pesticides to achieve prevention and control purposes.
Key words:  Sex pheromone  Spodoptera lituras  Dynamics

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