摘要
2005年以来,贺州市八步区早稻第三代稻纵卷叶螟均达到大发生程度,其原因主要与暴雨频繁、成虫迁入量大、生境适宜、上代残留基数高、田间天敌控害能力下降有关;生产上主要采取加强虫情监测,掌握治前控后策略,减轻防治压力,推行科学用药,选用高效低毒对口农药,提高施药防治效果等防治措施。
since 2005, the third generation rice leaf roller emerged in large scale each year and the main reasons for it are frequent rainstorm, big adult insects immigration, suitable growth condition and high remaining for last generation and less natural enemy in field. In production, several measures should be adopted as enhancing insect monitoring, mastering control technologies, scientific pesticide application, choosing low noxious pesticides and improving control effect etc.
出处
《广西农学报》
2008年第2期35-37,共3页
Journal of Guangxi Agriculture
基金
全区水稻病虫害防治项目(桂农业办发[2006]78号)
关键词
稻纵卷叶螟
发生原因
防治对策
Rice leaf roller
reasons for big emerging
control countermeasures
