宁夏枸杞主要害虫发生规律与防治策略

Population Dynamics and Control Strategies of Major Pests of Wolfberry,Lycium barbarum

目的:明确枸杞主产区主要害虫为害特点、发生规律及防治关键点,指导枸杞害虫绿色防控。方法:结合作者2009、2013、2015年7~9月对我国宁夏、青海、甘肃、新疆、内蒙古枸杞主产区枸杞生产现状调研结果,以及2012—2015年连续4年4~10月份对宁夏中宁县枸杞害虫种群发生动态及田间不同防控措施的效果调查,对枸杞害虫发生规律及集成防控策略进行了分析探讨。结果与结论:枸杞不同产区各害虫的发生为害各有特点,不同害虫占据不同生态位,从时间和空间上各害虫避免了直接竞争。秋季和早春是防治越冬代害虫的关键期,生长季节根据害虫防治关键点实施相应防治措施可有效提高防控效果,降低农药使用量。不同产区之间同种害虫具有共性特点,该研究为指导生产实践提供了理论依据。

Objective： To identify the damage character, population dynamics and formulate critical control points of the key pests of wolPoerry, Lycium barbarum for achieving green prevention and control. Methods： The wolfberry production status of the main producing areas was investigated in July to September of 2009, 2013, 2015. And the major pest population dynamics with different control measures were recorded in Zhongning county, Ningxia Hui Autonomous Region, China in April to October of 2012 to 2015. Combing with these two surveys, the occurrence regularity and the control tactics of the main pests of wolfberry were analyzed and discussed. Results and Conclusion： The damage character and population dynamics of the main pests of woliberry in different producing areas had different characteristics. It was significant to control the overwinter pests in autumn or early spring. As different pests occupied different ecological niches, the competition between each other were re- duced in time and space. During the growing season, the implementation of the corresponding prevention measures can effec- tively improve the control effect and reduce pesticide consumption according to the critical control points. As there were always many similar characteristics between the same species pests, this research provided theoretical basis to the production of wolf- berry in different region.