玉米钻心虫,学名玉米螟,是危害玉米的主要害虫。这种害虫,很多人年年防治,但收到的效果不佳,根据我们的统计一般造成减产20%左右。纠其原因是采取的措施不当和防治的时期超前或错后造成的。近几年来,根据我们对玉米钻心虫的防治经验,现归纳如下。一、必须完全、彻底地处理越冬寄主玉米钻心虫每年9月下旬以老熟幼虫的方式,主要在玉米、高粱等茎秆和玉米穗轴内越冬。因此,对收获以后的玉米、高 Corn bore worms, corn borer scientific name, is the main pest damage to corn. Many pests, many of them pest control, have received poor results. According to our statistics, they generally result in a decrease of about 20%. The reason for this correction is the improper measures taken and the precautionary control caused by the advance or the wrong. In recent years, according to our prevention and treatment of corn borer worm experience, are summarized as follows. First, we must completely and thoroughly handle the overwintering host corn borer worms in late September each year to mature larvae, mainly in corn, sorghum and other stems and corn cob winter. Therefore, after harvesting the corn, high