敌力脱防治小麦根病的初步研究

Study on control of the root diseases of wheat with tilt

通过对11种杀菌剂室内外研究,从中筛选出敌力脱(TILT)防治小麦根病效果显著;不同剂量拌种试验表明,用25％敌力脱乳油按种重的0.1％～0.2％拌种比较适宜,控制白穗效果好,保产效果显著;敌力脱拌种与茎叶喷雾试验证明,拌种效果优于茎叶喷雾,方法简便、省工、省时;并且在上述用量范围内对小麦安全。大田防治示范结果,用25％敌力脱乳油按种重的0.2％拌种。控制白穗效果达90.7％以上,亩平均增产79.63kg,保产效果达32.35％,经济效益显著,为小麦根病综合防治提供了一项有效措施。

Tilt Has been screened from 11 fungicides in laboratory and field conditions to control of the root diseases. Mixing seeds with 0.1%～0.2% of tilt 250Ec by seed weight could achieve good effects, which could control white head effectively with a high yield increass. Effective metods were mixing seeds tilt 250EC respectively, which were better than spraying on stems leaves. Such methods were safer to wheat crops and easy to do and time saving. Field demon- stration showed that mixing seeds with 0.2% of tilt 250EC by seed weight could get a control effection of more than 90.7% with an yield increase of 32.34%. It was an effective means in the integrated management of the root diseases of wheat.