鳃蚯蚓、红线虫是山东省东营稻区的主要地下害虫。5月初发生,5月中旬至6月中旬为危害高峰期,6月下旬以后危害逐渐减轻。鳃蚯蚓、红线虫主要危害水稻的根系。使根系发育不良,吸收能力降低,从而影响水稻苗期生长,使稻苗生长缓慢,分蘖减少,甚至出现僵苗不发的现象。由于鳃蚯蚓在根际不断摆动,使根际土壤过于疏松,引起倒苗。对于鳃蚯蚓、红线虫的防治,大多采取农药防治措施——敌敌畏或杀虫双拌毒土撒施。有的还施剧毒 Gill earthworms, red worms are the main underground pests in Dongying, Shandong Province. It occurred in early May, and from mid May to mid June was the peak of danger. The harm gradually decreased after the end of June. Gill earthworms, red nematodes harm the root system of rice. So that the root system dysplasia, reduce the absorption capacity, thus affecting the rice seedling growth, slow growth of rice seedlings, tillers reduce, or even the phenomenon of stiff seedlings. As the gill earthworm swinging constantly in the rhizosphere, rhizosphere soil is too loose, causing inverted seedlings. For the gill earthworm, red worms prevention and control, most of them take pesticide control measures - dichlorvos or insecticide double mixed soil spreading. Some also poisoned