草坪地下害虫种类及危害症状。草坪地下害虫种类主要有蛴螬类、蝼蛄类、地老虎类、金针虫类、根蝽类、根天牛类及根叶甲类等。在草坪中危害的主要种类:一是蛴螬。它是金龟子的幼虫,取食坪草的幼根、茎的地下部分。常将根部咬伤或咬断。危害的特点是断口比较整齐,经危害后坪草会枯萎死苗。二是蝼蛄。在地下咬食刚播下的种子或发芽的种子,并取食嫩茎、根,或将幼苗的根茎咬断,被咬处成乱麻状,草坪被害后地上部发黄,长势减弱或不生长,似积水引起的症状。蝼蛄 Lawn pest species and harm symptoms. Lawn species of pests mainly include 蛴 螬 蝼, 蝼 蛄 class, to the tiger genus, insects, root stink bug, root and day beetles and a root class. The main types of hazards in the lawn: First, 蛴 螬. It is a beetle larvae, feeding the grass roots, stems underground parts. Often the root bites or biting. Harm is characterized by relatively neat fracture, the grass will be dead after the damage dead seedlings. The second is 蝼 蛄. Bite in the ground just sowing seeds or germinated seeds, and take the tender stems, roots, or the seedlings snapped biting, was bitten into a mess, lawn damage after the ground above the yellow, weak or no growth , Like water-induced symptoms.蝼 蛄