摘要
2011―2012年,在棉花的苗期、蕾期和花铃期,对冀鲁豫三省18个监测点Bt棉田烟粉虱、棉蚜、棉蓟马、棉盲蝽、棉叶螨的发生为害情况进行了系统调查。2年监测结果按照非靶标害虫的最高发生株率排序为:烟粉虱(99.17%)>棉蚜(98.33%)>棉蓟马(74.58%)>棉盲蝽(43.10%)>棉叶螨(20.95%)。其中烟粉虱最高发生株率出现在山东和河南监测棉田的花铃期,棉蚜最高发生株率出现在河北监测点棉田的蕾期,棉盲蝽和棉叶螨最高发生株率出现在河北监测点棉田的花铃期;棉蓟马的为害高峰是在山东监测点棉田的蕾期。表明Bt棉田非靶标害虫的发生为害在棉花的不同发育时期明显不同,并呈现出明显的区域特征。
The occurrence and damage caused by whiteflies, cotton aphids, cotton thrips, mirid bugs, and cotton spider mites in the Bt cotton field, including 18 monitoring sites distributed in Hebei, Shandong, and Henan Provinces, were investigated from 2011 to 2012. In order of incidence of plants with pests, it showed that： whitefly （99.17%） 〉 cotton aphids （98.33%） 〉 cotton thrips （74.58%） 〉 mirid bugs （43.10%） 〉 cotton spider mites （20.95%）. Compared with other pests, whiteflies had a highest inci- dence in the flower and boll stage of Bt cotton in Henan Province, and mirid bugs and cotton spider mites mainly occurred in the flower and boll stage in Hebei. Province. Conversely, cotton aphids and cotton thrips showed the highest incidence at the bud stage in Hebei and Shandong Provinces, respectively. The results indicated that non-target pests showed significantly different occurrence and damage rates in various developmental stages of Bt cotton in different regions.
出处
《棉花学报》
CSCD
北大核心
2013年第6期533-540,共8页
Cotton Science
基金
"十二五"农村领域国家科技计划课题(2012BAD19B05-002)
转基因生物新品种培育重大专项(2013ZX08012-004)
2011―2012年农技推广与体系建设项目"抗虫棉抗性监测"
