摘要
桃蚜作为桃树生产中的重要害虫,寻求有效的生物防治途径已成为目前研究的重点。通过田间调查,对桃蚜及其主要天敌的种群动态及其空间分布特点进行了研究,并探讨了桃蚜与天敌之间相互作用的关系。结果表明,桃蚜优势天敌种群为瓢虫;桃蚜与寄生性天敌发生动态一致,而瓢虫的发生高峰较桃蚜延迟14 d;桃蚜、寄生性天敌及瓢虫在东、南、西、北4个不同方位分布无明显差异;桃蚜与寄生性天敌的发生量呈显著正相关(P<0.05),桃蚜与捕食性天敌发生期(+14 d)的发生量呈显著正相关(P<0.05)。
Greon Peach Aphid is an important pest in peach production.Attention has been paid on the biological control.The population dynamics and spatial distribution of Peach Aphid and its main natural enemies in peach orchard were investigated.The interaction between pests and their natural enemies were also investigated.The results showed that the dominant population of natural enemies green of peach aphid was ladybirds;The occurrence trends green of green peach aphid and parasitic natural enemy were consisted with each other,but the occurrence peak of Ladybird was 14 days later than green peach aphid.The occurrence of green peach aphid,parasitic natural enemy and Ladybirds number showed no significant difference in east,south,west and north;The incidence of green peach aphid and Parasitic natural were significantly correlated at 0.05 level(both sides),and that of ladybirds was significantly correlated at 0.01 level after 14 d.
作者
孟利峰
胡增丽
韩凤
刘朝红
赵龙龙
MENG Lifeng;HU Zengli;HAN Feng;LIU Zhaohong;ZHAO Longlong(Pomology Institute,Shanxi Agriculture University,Taigu 030815,China)
出处
《果树资源学报》
2020年第5期4-6,13,共4页
Journal of Fruit Resources
基金
山西省重点研发计划项目(201903D211001-1)
山西省农业科学院科技创新项目(YCX2020YQ08)。
关键词
桃蚜
天敌
发生
生物防治
green peach aphid
natural enemy
occurrence
biological control
