冷藏对菜蚜茧蜂羽化率及寿命的影响研究  

The Impact of Refrigeration on the Emergence Rate and Life of Diaeretiella rapae(M'Intosh)

作　　者：闫玉芳[1] 陈文龙[1] 

机构地区：[1]贵州大学昆虫研究所/贵州山地农业病虫害重点实验室,贵阳550025

出　　处：《中国农学通报》2012年第30期249-253,共5页Chinese Agricultural Science Bulletin

基　　金：贵州大学研究生创新基金项目"温湿度对菜蚜茧蜂生长发育影响的研究"(校研农:2011007);中国烟草总公司贵州省公司科技项目"有机烟叶综合生产技术的研究与开发"(200901);贵州大学引进人才科研项目"烟草重要害虫生物及物理防治技术研究"[贵大人基合字(2007)031号]

摘　　要：为了明确不同温度、不同僵化天数以及冷藏时间对菜蚜茧蜂羽化率及寿命的影响，找出菜蚜茧蜂最适冷藏条件。实验在不同温度（2、3、4、5、6℃）下冷藏不同僵化程度（僵化1、2、3、4、5天）的菜蚜茧蜂僵蚜5、15、25天。结果显示：随冷藏时间的延长菜蚜茧蜂的羽化率有所降低；僵化4、5天的僵蚜更耐冷藏，4-5℃较适合菜蚜茧蜂低温冷藏。6℃时有部分虫体在冷藏过程中羽化。冷藏期为5、15天时，可存活2-3天。冷藏期为25天时，寿命为1-2天。因此，菜蚜茧蜂最适宜在僵化4-5天时，于4-5℃冷藏。The paper researched that different temperatures, rigescent levels and icedstorage influenced on the emergence rate and life of D. rapae in order to define the best refrigeration condition. We refrigerated rigescent insect state of D. rapae under different temperature （2, 3, 4, 5, 6 ℃） and different rigescent stage （about 1, 2, 3, 4, 5 days）. The results showed that the emergence rate of D. rapae dropped with the extension of refrigeration period. The insect stage about 4, 5 days of rigescent stage was more suitable to refrigerate under 4-5℃. At 6℃, parts of samples made eclosion during refrigeration. When the refrigeration period was 5, 15 days, it could live about 2-3 days. If the refrigeration period was 25 days, its life was about 1-2 days. So D. rapae pupa of rigescent stage about 4-5 days was the most suitable to refrigerate under 4-5℃.

关 键 词：冷藏 菜蚜茧蜂 羽化率 寿命 

分 类 号：S476.3[农业科学—农业昆虫与害虫防治]