水稻螟虫有大螟、二化螟、三化螟,俗称钻心虫、蛀心虫、白穗虫。是水稻重要害虫之一。全国各稻区均有发生。实践证明,在水稻生长期间,只要蚁螟钻入秧苗的心叶、茎或正在孕穗的幼穗内,用药剂防治,花工多、用药量大、花钱多、收效小。近年来,很多稻区的农民,根据螟虫以蛹或老熟幼虫在稻根内越冬的习性,普遍开展冬季治螟,收到了事半功倍的效果。其具体做法是: Rice stem borers Sesamia inferens, Chilo suppressalis, Borer, commonly known as borer, borer, white beetle. Is one of the important pests of rice. All rice regions in China have occurred. Practice has proved that during rice growth, as long as the stem borer into drill seedling leaf, stem or booting ears, the use of agents to prevent and control, spend more work, medication, more money, less effective. In recent years, many peasants in rice-growing areas have generally achieved their winter treatment of stem borers according to the habit of overwintering pupae or mature larvae in rice roots, and have achieved a multiplier effect. The specific approach is: