在海南南繁玉米,主要任务是自交系的繁殖、杂交制种等。在玉米幼苗期间,常受到以地老虎为主的多种地下害虫危害,将幼苗茎叶咬食咬断,造成严重缺苗,使南繁工作蒙受损失。我们在海南岛南繁期间,通过几种方法的实践比较,总结体会到毒饵效果较为理想。具体做法是在播前采取药剂土壤处理,粪肥腐熟等措施的基础上,在幼苗期施用毒饵,其配制、使用方法、效果如下: 1.毒饵配制稻糠(不是单纯稻壳)1份,炒至微黄且有香味散出。取糖、醋、酒各1%份,有效含量在90%以上的敌百虫(固体或液体)1%份,于施用前混合搅拌均匀待用。 2.施药时间、方法注意虫情调查,一旦发现虫害即进行防治。根据一些地下害虫昼伏夜出的活动特点,将拌好的毒饵在傍晚日落前施于幼苗周围,并在田块周围撒上 South in Hainan Fanghua, the main task is the inbred breeding, hybrid seed production. During corn seedlings, they are often endangered by various underground pests, mainly of ground tigers. They bite the stems and leaves of seedlings and cause serious shortage of seedlings, causing losses to Nan Fan’s work. We Hainan Island in the South during the complex, through the comparison of several practices, summed up the experience of the bait effect is more ideal. The specific approach is to sow before taking pesticide soil treatment, manure composting and other measures based on the application of seed bait in seedling stage, its preparation, use, the results are as follows: 1. Bait preparation rice bran (not a simple rice hull), fry Yellowish and scented Take 1% of each of sugar, vinegar and wine, 1% of trichlorfon (solid or liquid) with effective content over 90%, and mix well before use. 2.Application time, method pay attention to insect investigation, once found that pest control. According to some pest nocturnal activity characteristics, will be mixed bait in the evening before sunset applied to the seedlings around, and sprinkle around the field