杉梢小卷蛾(Polychrosis cunningham-iacola Liu ct Pai)是杉木的一种重要害虫,发生普遍,危害严重。防治这种害虫,过去都采用喷洒化学农药和摘除被害梢的办法。在一些山区和丘陵地区,喷雾防治由于山高坡陡以及水源的限制,劳动强度大,操...杉梢小卷蛾(Polychrosis cunningham-iacola Liu ct Pai)是杉木的一种重要害虫,发生普遍,危害严重。防治这种害虫,过去都采用喷洒化学农药和摘除被害梢的办法。在一些山区和丘陵地区,喷雾防治由于山高坡陡以及水源的限制,劳动强度大,操作比较困难。山于有利时间短(要抓住幼虫蛀入嫩梢前的初孵期喷药)展开更多
The present paper deals with a new genus and six new species belonging to Erio- phyidae from China. The length unit is micron. All the type specimens are deposited in the Department of Plant Protection, Nanjing Agricu...The present paper deals with a new genus and six new species belonging to Erio- phyidae from China. The length unit is micron. All the type specimens are deposited in the Department of Plant Protection, Nanjing Agricultural展开更多
文摘杉梢小卷蛾(Polychrosis cunningham-iacola Liu ct Pai)是杉木的一种重要害虫,发生普遍,危害严重。防治这种害虫,过去都采用喷洒化学农药和摘除被害梢的办法。在一些山区和丘陵地区,喷雾防治由于山高坡陡以及水源的限制,劳动强度大,操作比较困难。山于有利时间短(要抓住幼虫蛀入嫩梢前的初孵期喷药)
文摘The present paper deals with a new genus and six new species belonging to Erio- phyidae from China. The length unit is micron. All the type specimens are deposited in the Department of Plant Protection, Nanjing Agricultural