小麦吸浆虫,在土里越冬,隐蔽性好,不易被发现,近几年危害日趋严重,轻者造成瘪粒减产,严重的致使绝收。防治小麦吸浆虫必须先查虫。下面介绍个淘土法,此法简便易作,一般3～5分钟即可完成一土样。首先用70～90目尼龙网纱,长、宽各1米,然后取麦田10×10×20立方厘米的土样,查化蛹 Wheat midge, overwinter in the soil, hidden good, not easy to be found, in recent years more and more serious harm, the light caused by shrunken grain production, resulting in serious accidents. Control of wheat midge insects must first check insects. The following describes a Tao Tao method, this method is simple and easy to operate, usually 3 to 5 minutes to complete a soil sample. First with 70 ~ 90 mesh nylon gauze, length and width of 1 m, and then take wheat field 10 × 10 × 20 cm3 soil samples, check pupae