【摘要】 棘禾草螟(Chilo hyrax Bleszynski)是蛀食芦苇茎秆的主要害虫之一,它在湖北一年发生2-3代,一般以老熟幼虫在苇茬中越冬,少数在残株中越冬。本文记述了棘禾草螟的生物学特性,并分析了影响其种群数量的主要因子。更多还原

【Abstract】 The Amur silvergrass stem borer, Chilo hyrax Bleszyski, is one of themost serious pest infesting the Amur sil ergrass, Miscanthus sacchariflous (Maxin) andCommon reed, Phragmiles commuis Trin in Hubei province. It has two to threegenerations per year. The boreres pass over the winter with full-grown instar larva inthe stubbles of Amur silvergrass and some in the stem. Bionomics of ASSB and theenvironmental factors on effecting population such as harvesting time and quality, speciesand growing power of reed, species and densily of natural enimies are described.更多还原