１９９４～１９９６年，选择陕西关中目前主栽小麦品种３０个，田间自然感虫进行抗螨性鉴定。结果表明，不同小麦品种对麦圆叶爪螨（Ｐｅｎｔｈａｌｅｕｓｍａｊｏｒ（Ｄｕｇｅｔ））的抗性有一定的差异。比较而言，陕１６７，小偃５０４，陕２２９，ＮＣ３３２等品种的抗螨性较强；８７１６２，８３２９，陕９２７，陕８００７，５４８９，９０－３等品种的抗螨性较弱；其余品种的抗螨性介于上述二者之间。个别品种的抗螨性在不同时期的相对排序中变化较大，表现了抗性的时间特定性。 From 1994 to 1996, 30 wheat cultivars were selected in Guanzhong of Shaanxi Province, and natural insects in the field were identified as anti-mite. The results showed that the resistance of different wheat cultivars to Penthaleus major (Duget) was different. In comparison, the cultivars of Shaanxi 167, Xiaoyan 504, Shaanxi 229 and NC332 had stronger anti-mite resistance; the anti-mite resistance of 87162, 8329, Shaan 927, Shaan 8007, 5489 and 90-3 were weaker; The anti-mite between the two. The anti-mite properties of individual cultivars varied greatly in the relative ranking of different periods, showing the temporal specificity of resistance.