灵芝膜喙扁蝽的发生规律及防治

灵芝膜喙扁蝽在浙江一年发生二代,若虫期为5龄,以成虫在土中的段木周围及灵芝棚内紧贴土面的木片、竹片下越冬。该虫具有群集、假死、喜阴等习性。每年6～10月为发生为害期。膜喙扁蝽以灵芝菌丝为食,灵芝段木受害后,灵芝产量明显减少,品质下降。研究结果表明,该虫的防治可采用农业防治与化学防治相结合的方法,农药以敌敌畏、辛硫磷和百树得为宜。

Studies on the Occurrence Pattern and Control of Mezira membranacea (Fabr.)

The bionomics characteristics of Mezira membranacea (Fabr. ) were investigated both in the field and in the laboratory. The results showed that M. membranacea had two generations per year in Zhejiang Province, and that its larva stage consists of five instars. M. membranacea overwintered as adults around Ganoderma Lucidum logs in the soil and under the wood or bamboo chips in Ganoderma lucidum sheds with the characters of aggregation, false death and negative phototropism. The serious harmful period of M. membranacea was from June to October. M. membranacea sucked the juice of the mycelium of G. Lucidum, resulting in great losses both in the yield and the quality of G. Lucidum . While the cultivated and chemical measures could be used to control M. membranacea, and the effective insecticides were proved to be dichlorvos (DDVP), phoxim and cyfluthin.