摘要
通过田间调查和人工接种，首次发现苹果根爪绵蚜是为害苹果树根的重要新害虫，并确定苹果根爪绵蚜营异寄主全周期生活，其原生寄主为榆，次生寄主为苹果、沙果。５月中旬至５月底，苹果根爪绵蚜以有翅干雌成蚜迁飞到苹果园，在苹果树根梢产无翅孤雌侨蚜为害；１０月初至１１月初，又以有翅性母成蚜迁飞到榆树上产雌、雄性蚜，交配后雌蚜产卵，以卵越冬；春季干母、有翅干雌为害榆叶形成虫瘿。
The research based on field investigation and artificial inoculation,firstly dicates that Aphidounguis pomiradicicola Zhang et Hu is an important and new insect enemy at root of apple.The life history belongs to heteroceous holocycle type,elm (Ulmus spp.)is the primary host,apple(Malus spp.)is the secondary host.From the midde of May to the end of May alate fundatrigeniae fly and migrate to the apple and apterous viviparous female do the damage to the thin root of the apple.From the begining of October to the beginning of November sexuparae fly and migrate to the elm and produce the sexuales of female and male. After mating the female sexuales lay eggs. The eggs hibernate. In spring, the fundatrix and alate fundatrigeniae damage the leaves on the elm and produce insect galls.
出处
《西北农业学报》
CAS
CSCD
1999年第2期34-36,共3页
Acta Agriculturae Boreali-occidentalis Sinica
基金
国家自然科学基金
陕西省自然科学研究计划项目
关键词
苹果根爪绵蚜
虫瘿
异寄主全周期生活
负生长
Aphidounguis pomiradicicola
Insect galls
Heteroceous holocycle
Negative growth
