作物分布对二点委夜蛾发生规律的影响
Effects of crop distribution on the occurrence of Athetis lepigone (M?schler)
关秀敏1** 徐兆春1*** 李丽莉2 陈淑娟2 刘麦丰3 胡英华4
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DOI：10.7679/j.issn.2095-1353.2019.067
作者单位：（1. 山东省植物保护总站，济南 250100；2. 山东省农业科学院，济南 250100；3. 肥城市植物保护站，肥城 271600；4. 济宁市植物保护站，济宁 272037）
中文关键词：二点委夜蛾；玉米；花生；大豆；发生规律
英文关键词：Athetis lepigone (M?schler); corn; peanut; soybean; planted distribution
中文摘要：【目的】二点委夜蛾Athetis lepigone (Möschler)是近年农业新发害虫，为探讨作物分布和种植布局与其田间发生的关系，本文初步研究了作物种植比例、种植模式对二点委夜蛾田间发生规律的影响。【方法】 在济宁市等二点委夜蛾发生典型地区，调查统计小麦、玉米、花生、大豆等作物种植分布情况，完成作物种植比例影响试验；在济宁市和肥城市不同作物田进行诱蛾试验，研究分析不同作物种植方式与二点委夜蛾发生关系。【结果】 试验结果显示，单植玉米比例与玉米田2代幼虫数量呈显著正相关，单植大豆比例与越冬代蛾量呈显著正相关；与玉米毗邻花生、大豆田诱蛾量显著高于小麦-玉米种植田。【结论】 以上试验说明，越冬代成虫羽化后向各种作物田迁移，没有特别喜好。1代以后的成虫则更喜欢玉米周围有花生、大豆种植的田块，越冬代幼虫可能更喜欢在花生、大豆田越冬。
英文摘要：[Objectives] To investigate the effects of crop-planting
ratios and patterns on the abundance of the moth Athetis lepigone (Mschler), a new agricultural pest. [Methods] We compared different planting distributions
of wheat, maize, peanuts and soybeans, and analyzed the relationship between
different crop-planting ratios and the abundance of A. lepigone. We also conducted trapping experiments at Jining and
Feicheng to investigate the relationship between different crop layouts and A. lepigone abundance. [Results] The proportion planted in maize was positively
correlated with numbers of the second generation larvae in maize fields and the
proportion planted in soybeans was positively correlated with numbers of the
overwintering generation. Moth abundance in maize adjacent to peanut and
soybean fields was significantly higher than that in maize crops adjacent to
wheat or corn fields. [Conclusion] The overwintering generation had no
preference for the different crop varieties examined but first to third
generation adults preferred peanut and soybean fields close to maize fields.
The last larval generation may prefer to peanuts and soybean fields in winter.