摘要
大棚释放不同比例的烟蚜茧蜂和菜蚜茧蜂(4∶0、3∶1、2∶2、1∶3、0∶4),防治不同数量烟蚜种群(蚜情指数为0-5级。结果表明:蚜情指数为0-3级时,烟蚜茧蜂和菜蚜茧蜂以3:1的比例释放可以达到更好的控制烟蚜的效果,防治效果达81.13%。蚜情指数达到4-5级时,烟蚜茧蜂和菜蚜茧蜂以1:1的比例释放时,控制效果高于比其他对照组,但不能及时有效的控制烟蚜种群的增长。
Different proportions of Aphidius gifuensis and Diaeretiella rapae(4∶ 0,3∶ 1,2∶ 2,1∶ 3,0∶ 4) were released in plastic greenhouse to control Myzus persicae(sulzer) population with aphid index from 0 - 5. The results showed that release of A. gifuensis and D. rapae in a ratio of 3∶ 1 had better control effect when the index of aphid number was between Grade 0 and Grade 3,of which the control effect was as high as 81. 13%.While the index of aphid number was from Grade 4-5,the proportion of A. gifuensis and D. rapae which was set as 1 ∶ 1 got better control efficiency than other treatments,but the increase of the aphid population could not be inhibited effectively under this condition.
出处
《山地农业生物学报》
2014年第6期33-37,共5页
Journal of Mountain Agriculture and Biology
基金
贵州省烟草公司:"贵州省蚜茧蜂复合防控烟蚜的研究与应用"[2013]-72
关键词
烟蚜
烟蚜茧蜂
菜蚜茧蜂
生物防治
复合控制
Myzus persicae
Aphidius gifuensis
Diaeretiella rapae
Biological control