湘西五倍子蚜虫冬寄主藓类植物的筛选与人工培植

作者通过几年来所作的植藓养蚜实验及其效果的调查分析,确定并筛选出一批适合本地在生产上推广使用的冬寄主藓种,以及适于不同冬寄主藓的不同的植藓养蚜方法,并在实践的基础上总结出植藓养蚜的生态法则,认为冬寄主藓的载蚜效果,不仅与藓种本身有关,而且受藓的生长情况,生境中诸多环境因子的控制,因此植藓养蚜时必须选择或创造适于藓的生长同时又能满足虫子寄生对生态条件要求的环境,这样才能取得较好的效果.

Selection and Cultivation of Overwintering Host Mosses of the Gallnut Aphides in Western Hunan

The overwintering host mosses are essencial for gallnut aphides to live through the winter. Inorder to get a high yield of gallnuts, some species of good overwintering host mosses must be seleced- In this article, several important overwintering host mosses inwestern hunan have been introduced--Plagium acutum (Lindb. ) T. Kop. , P. maxi-moviczii (Lindb. )T. Kop. , and P. vesicatum(Besch. )T. Kop. for the horned gall aphid's overwintering host mosses; Herpetineuron toccoae (Sull. et Lesq. ) Card, Okamuraca brachydictyon (Card. ) Nog. , Schwetschkea matsumurae Besch. and Palamocladium macrostegium(Sull. et Lesq. )Iwats. et Tak. for the hard ensiform gall aphid's. On the basis of their experiments and investigations, the authors put forward an ecological rule of the artificial multipli-cation of gallnut aphides,believe that a special environment suitable for both overwintering host mosses and overwintering gall aphides must have been created or selected when we carry on mosses cultivation and gall aphides propagation- The cultivation methods of different mosses are also discussed in this paper.