| 王静1, 赵楠4, 于毅1, 张安盛1, 门兴元1,周仙红1, 庄乾营1, 王振营2, 石洁3， 李丽莉1*.2012年山东省二点委夜蛾发生情况调查初报[J].植物保护,2014,40(1):173-178. |
| 2012年山东省二点委夜蛾发生情况调查初报 |
| Preliminary report on the occurrence of Athetis lepigone in Shandong Province in 2012 |
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| DOI： |
| 中文关键词: 二点委夜蛾 田间调查 栖息环境 |
| 英文关键词:Athetis lepigone field survey habitat |
| 基金项目: |
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| 中文摘要: |
| 于2012年7-9月对山东省17个地市夏玉米田、大豆田等地块二点委夜蛾的发生危害情况做了抽样调查。结果表明，该虫在全省各地市均有分布，发生范围进一步扩大，以烟台发生最重平均虫口密度为3.27头/m2，其次是潍坊、临沂、莱芜和聊城，平均虫口密度分别为1.87、1.77、1.74和1.62头/m2。最大虫口密度达到16头/m2。7月中下旬，3、4龄幼虫发生达到高峰。二点委夜蛾幼虫喜欢栖息在有麦秸、花生秧、杂草覆盖的潮湿地表中。 |
| 英文摘要: |
| Occurrence of Athetis lepigone Mschler in corn fields and soybean fields were investigated in 17 cities of Shandong Province in summer of 2012. The results showed that the pest spread all over Shandong Province. The pest occurred most seriously in Yantai with average density of 3.27 larva per square meter, followed by Weifang, Linyi, Laiwu and Liaocheng, with the average density of 1.87, 1.77, 1.74 and 1.62 larva per square meter, respectively. The maximum density was 16 larvae per square meter. The 3rd and 4th instar larva of A.lepigone has a large occurrence amount in middle to late July. The larva prefers to hiding in humid surface soil covered by the wheat straw, peanut seedlings and withered grass. |
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