| 罗礼智 1*, 程云霞 1, 唐继洪 2, 江幸福 1, 张 蕾 1.草地螟迁飞的原因、目标与对策[J].植物保护,2018,44(5):34-41. |
| 草地螟迁飞的原因、目标与对策 |
| The causes, targets and strategies of migration in the beet webworm, Loxostege sticticalis (Lepidoptera: Crambidae) |
| 投稿时间：2018-07-29 修订日期：2018-07-31 |
| DOI：10.16688/j.zwbh.2018338 |
| 中文关键词: 草地螟 迁飞 生殖与存活 危害种群 温湿度 |
| 英文关键词:Loxostege sticticalis migration reproduction and survival outbreak population temperature and humidity |
| 基金项目:国家公益性行业(农业)科研专项(201403031); 国家重点研发计划 (2017YFD201701, 2017YFD201802); 国家绿肥产业技术体系(CARS-22); 国家自然科学基金(31672019，31301656); 北京市自然科学基金(6172030) |
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| 中文摘要: |
| 人们对36°~55°N地区的重大农业害虫草地螟Loxostege sticticalis L. (鳞翅目: 草螟科）的迁飞规律已了解较多, 但对其迁飞的原因、目标与对策所知甚少。为了弥补这些缺陷, 本文根据草地螟生活史特征, 结合迁出、迁入以及再迁飞种群, 成虫生殖, 后代存活, 田间幼虫危害种群发生与温湿条件的关系分析, 明确了: 1）迁飞种群主要降落在21℃, RH>60%的地区, 较高或较低的温湿度是导致成虫迁出或再迁飞的原因; 2）最大的成虫生殖能力及后代存活率, 以及田间幼虫为害或大发生种群主要在21℃, RH>60%条件下形成; 3）成虫为到达21℃, RH>60%的地区所采取的对策: 先迁飞、后生殖, 以及在迁飞过程中表现出的各种适应性行为等。所得结果为深化草地螟迁飞规律的认识、研究与应用提供了重要依据。 |
| 英文摘要: |
| The beet webworm, Loxostege sticticalis L. (Lepidoptera: Crambidae) is a well-known cosmopolitan insect pest of crop and fodder plants in many regions between 36°-55°N latitude, but the causes, targets and strategies of its migration were less understood. Based on analyses of the life cycle, immigration, emigration and re-emigration, reproduction, survival and the relationships between occurrence of larval population and temperature and humidity, this review indicates that: (i) migrants mostly land on the areas with the conditions of 21℃, >RH 60%, too high or too low temperature and humidity are the major causes for emigration and re-emigration; (ii) the maximum fecundity and offspring survivorship and the most severe damage or outbreak are observed under the conditions of 21℃, >RH 60%; (iii) the migratory strategies taken by adult migrants are: migration is followed by reproduction, and various adaptive behaviors during migration. These results enhance our recognition, research and application of migration in this species. |
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