地下害虫在我省发生普遍,危害严重,且种类繁多,为害小麦的主要有蝼蛄、蛴螬、金针虫三种。以蝼蛄发生面积最大,约占总耕地面积的40%左右,主要分布在京广铁路以东,沙河以北的广大平原冲积、沙圵、盐碱土地区,予西黄河与伊洛河两岸,南阳的唐河,白河以及伩阳地区的淮河两岸的冲积沙圵土地区;蛴螬主要分布在周口地区,驻马店地区北部,许昌、开封、商丘 Underground pests are common in our province, endangering serious, and a wide range of damage to wheat are mainly 蝼 蛄, 蛴 螬, red worms three. Occurred in the largest area, accounting for about 40% of the total area of ​​?? cultivated land, mainly distributed in the east of Jing-Guang Railroad, north of Shahe vast alluvial, sandy loam, saline-alkali soil area, to the West Yellow River and Iloil, Nanyang Of the Tanghe River and Baihe River and the alluvial sandy loam areas on both banks of the Huaihe River in Leiyang area. The crickets are mainly distributed in the Zhoukou area, north of Zhumadian area, Xuchang, Kaifeng and Shangqiu