| 赵雪晴1#, 屈天尧2#, 李亚红2, 尹艳琼1, 张红梅1, 王 燕1, 李向永1, 陈福寿1, 李永川2*, 谌爱东1*.2019年云南省草地贪夜蛾春夏季发生特征[J].植物保护,2019,45(5):84-90. |
| 2019年云南省草地贪夜蛾春夏季发生特征 |
| Seasonal occurrence characteristics of the fall armyworm, Spodopterafrugiperda, in Yunnan in 2019 spring and summer |
| 投稿时间：2019-07-08 修订日期：2019-07-12 |
| DOI：DOI: 10.16688/j.zwbh.2019345 |
| 中文关键词: 草地贪夜蛾 发生特征 云南 春夏季 |
| 英文关键词:Spodoptera frugiperda occurrence characteristics Yunnan spring and summer |
| 基金项目:云南省财政专项 |
| 作者 | 单位 | | 赵雪晴1#, 屈天尧2#, 李亚红2, 尹艳琼1, 张红梅1, 王 燕1, 李向永1, 陈福寿1, 李永川2*, 谌爱东1* | 1. 云南省农业科学院农业环境资源研究所, 昆明 650205
2. 云南省植保植检站, 昆明 650034 |
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| 中文摘要: |
| 草地贪夜蛾Spodoptera frugiperda自2019年1月11日在云南省普洱市江城县首次被发现以来, 截至6月24日, 全省已发生16个州(市)128个县(区、市), 累计发生面积达11.72万hm2, 总体呈现由滇西南、滇南、滇西向滇东南、滇中、滇东北和西北迁飞扩散的趋势。4-5月, 实地调查受害株率4.00%~97.00%, 平均单株虫量0.02~2.72头。同时, 世代重叠现象突出, 田间可见各种虫态。到6月下旬, 随着西南季风加强和玉米种植面积的不断扩大, 云南草地贪夜蛾发生特征已经从初期的零星发生、区域间有较大差异、以境外虫源为主向全境普遍性发生、发生程度高及境外虫源与本地虫源混合发生为害转变。同时, 值得注意的是, 云南玉米周年种植及播期的复杂化也为草地贪夜蛾的发生为害提供了连续不断的丰富食料, 成为其为害严重的重要原因之一。 |
| 英文摘要: |
| On January 11, 2019, the fall armyworm (FAW), Spodoptera frugiperda (J.E.Smith) was discovered in Jiangcheng county, Puer city of Yunnan province. Up to June 24, 128 counties of 16 prefectures (cities) have been infested in Yunnan province with a cumulative occurrence area of 117 200 hm2, in general it showed that the trend of migration and diffusion was from southwestern, southern, western to southeastern, central, northeastern and northwest Yunnan. From April to May in field the infested rates of plant were 4.00%－97.00% and mean densities were 0.02－2.72 individual per plant. At the same time, generation overlapping was prominent and various stages can be found. By the end of June, with the enhancement of southwest monsoon and the continuous expansion of maize planting area, the occurrence characteristics of FAW in Yunnan had changed greatly. At first, the FAW occurred sporadically, the occurrence in different regions was quite different, and the source of FAW was mainly from abroad. But now the FAW has spread to almost all regions of Yunnan and seriously occurred with the mixture of overseas and local FAW as the source. It is worth noting that the perennial planting and various sowing dates in Yunnan has also provided continuous abundant food for FAW, which has become one of the important reasons for its serious damage. |
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