地下害虫的种类很多,在我省主要是蝼蛄、蛴螬、金针虫和地老虎等。它们都取食为害作物的地下部分和近地面部分。一般蝼蛄为害处成丝状,地面留有隧道,金针虫为害有时造成麻丝状,但常留有虫洞和裂痕;蛴螬为害幼苗的切口处整齐;地老虎为害的切口处也较整齐,但 Many types of underground pests, mainly in our province 蝼 蛴, 蛴 螬, insects and tigers and other land tiger. They both feed the underground and near-surface parts of the crop. General 蝼 蛄 harm into filaments, the ground left the tunnel, the worm caused by sometimes sericulture, but often leave wormholes and cracks; cuttings nectar damage seedlings neatly; to Tigers damage incision is also more neat, but