幼虫蛀食萌动的种子或幼苗的地下组织,引致腐烂死亡。种蝇又名灰地种蝇、菜蛆、根蛆、地蛆,以幼虫在土中为害播下的蔬菜(瓜类、豆类、十字花科蔬菜、菠菜、葱蒜等)种子,取食胚乳或子叶,引起种芽畸形、腐烂而不能出苗;钻食蔬菜根部,引起根茎腐烂或全株枯死。种蝇为世界性害虫,在我国以粤北发生较多。
目的调查研究中国已知地种蝇属的种类及其分布。
Objective To study the species and distribution of Delia known in China.
本实用新型是一种蝇蚊刷;它由刷丝、刷丝头、杆、手柄组成。
The utility model relates to a fly and mosquito brush, composed of brush filaments, a brush filament head, a rod and a handle.
丽蝇双翅蝇类的一种蝇,产卵于动物尸体或腐肉上,或在掀开的。
Any of several flies of the family Calliphoridae that deposit their eggs in carcasses or carrion or in open sores and wounds.
应用推荐