灰飞虱的起飞和扩散行为
The takeoff behavior of Laodelphax striatellus and its relation to the ovarian development
王 瑞；沈慧梅；胡 高；陈 晓；翟保平*
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DOI：
作者单位：南京农业大学昆虫学系 南京 210095
中文关键词：灰飞虱, 起飞行为, 卵巢发育
英文关键词：Laodelphax striatellus, takeoff behavior, ovarian development
中文摘要：2005年7月初至9月底，在扬州市邗江区通过田间观察、罩笼试验以及卵巢解剖，初步研究灰飞虱Laodelphax striatellus（Fallén）的起飞行为及其与长翅型密度、天气条件、光照强度、卵巢发育等因素的关系。发现灰飞虱的起飞时段多在日落之后，起飞存在一定的密度阈值和最适光照强度范围，而且在一定程度上表现出“卵子发生—飞行共轭”效应。
英文摘要：The takeoff behavior of Laodelphax striatellus（Fallén） and its ralation to factors like the density of macropterous form, wheather, intensity of light and ovarian development were studied by means of field observation, cage experiment and ovary dissection in Hanjiang borough of Yangzhou city from the early July to the late september on 2005. The results show that Laodelphax striatellus（Fallén）are mostly take off after the sunset, and there are a certain threshold density and a optimum lux range for the takeoff. It also shows the oogenesis-flight syndrome to a certain extent.