豚草卷蛾的生态适应性及其风险评价

应用生态学报 ›› 2003, Vol. ›› Issue (8): 1391-1394.

豚草卷蛾的生态适应性及其风险评价

马骏^1,2, 万方浩¹, 郭建英¹, 游兰韶², 杨汉民³

1. 中国农业科学院生物防治研究所, 农业部生物防治资源研究与利用重点实验室, 北京 100080;
2. 湖南农业大学植物保护系, 长沙 410128;
3. 湖南省临湘市农业局, 临湘 414000

收稿日期:2001-04-03 修回日期:2001-07-05 出版日期:2003-08-15
通讯作者: 万方浩
基金资助:
国家自然科学基金(39770510);农业部农作物病虫草害生物防治资源研究与利用重点实验室资助项目

Ecological adaptability and application safety of Epiblema strenuana as a biocontrol agent against ragweed

MA Jun^1,2, WAN Fanghao¹, GUO Jianying¹, YOU Lanshao², YANG Hanmin³

1. Key Laboratory of Biocontrol Resource Research and Utilization, Ministry of Agriculture, Institute of Biological Control, Chinese Academy of Agricultural Sciences, Beijing 100081, China;
2. Department of Plant Protection, Hunan Agricultural University, Changsha 410128, China;
3. Linxiang Bureau of Agriculture, Linxiang 414000, China

Received:2001-04-03 Revised:2001-07-05 Online:2003-08-15

摘要/Abstract

摘要： 豚草卷蛾是害草豚草和银胶菊的重要天敌.本文就该虫生态适应性、对目标杂草的控制效能、引进与释放的安全性评价作了综述.豚草卷蛾具有严格的寄主专一性,所有田间选择性寄主均局限于豚草亚族,而对向日葵和菊花仅表现为随机风险(风险值<0.01)或0风险;生态适应性强,适宜发育的温度为15～35℃,越冬虫态的低温下限为-8～-12℃;种群增长快,能在豚草和苍耳上分别以23和4倍的速度增长;控制能力强,大量感染时田间寄主的平均虫瘿达到每株20～30头,营养生长前期5.2虫瘿可使植株死亡,营养生长后期26个虫瘿可使植株致死,释放后12个月内扩散区域超过100km;对释放地天敌苍耳螟不构成竞争,是控制豚草和银胶菊的有效天敌,可以安全应用.

Abstract: Epiblema strenuana is the most important natural enemy against Ambrosia artemisiifolia, A. trifida and Parthenium hysterophorus.In this paper,its ecological adaptability and application risk as a biological agent against ragweed was analyzed and reviewed. Epiblema strenuana had a restrict host specificity, with all the field hosts belonging to Ambrosiinae, and its selective risk on sunflower and chrysanthemum was less than0.01 or/and zero (no risk). 15～35 ℃ was the suitable temperature regimes for E. strenuana to develop, and lower constraint temperature could reach -8～-12 ℃. The population size of this insect could increase 23 and 4 times on A. artemisiifolia, A. trifida and Xanthium sibiricum after each generation, respectively. In the field, the infected plants had an average of 20～30 galls per plant, and died with 5.2 and 26 galls before and after rosette stage.The spread distance of this moth within12 months after release was more than100 km. It indicated that E.strenuana was an effective and safe agent for cereal and economic crops, ornamental plants, and indigenous natural enemy in the introduced region.

中图分类号:

Q968

马骏, 万方浩, 郭建英, 游兰韶, 杨汉民. 豚草卷蛾的生态适应性及其风险评价[J]. 应用生态学报, 2003, (8): 1391-1394.

MA Jun, WAN Fanghao, GUO Jianying, YOU Lanshao, YANG Hanmin. Ecological adaptability and application safety of Epiblema strenuana as a biocontrol agent against ragweed[J]. Chinese Journal of Applied Ecology, 2003, (8): 1391-1394.

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