河西走廊玉米制种田害螨种类调查研究

Investigation of leaf mite species of corn seed production field in Hexi Corridor

介绍河西走廊制种玉米的害螨种类、形态识别及田间为害特点。通过采集标本,已鉴定出为害河西走廊制种玉米的害螨有6种,其中截形叶螨是发生在河西走廊玉米制种田中的叶螨优势种。此外,二斑叶螨和朱砂叶螨在制种玉米田中的发生也较普遍,田间为害较严重;而冰草叶螨和敦煌叶螨仅在局部地区发生,伴随其他害螨发生为害;玉米岩螨在河西走廊制种玉米田中属于首次发现,是河西走廊的新记录种。

This paper reports the corn pest mite species, morphological identification and harm characteristics in Hexi Corridor. Through collecting specimens, 6 species of corn pest mites have been identified. Among them Tetranychus truncatus is the dominant species of corn leaf mites. Tetranychus urticae and Tetranychus cinnabarinus are common in corn seed production field, and the damage is also serious. Tetranychus agropyronus and Tetranychus dunhuangensis can be seen only in the local area with other pest mite. Corn rock mite is first found in corn seed production field of Hexi Corridor, and it is a new species belonging to Hexi corridor.