应用祛疯1号防治枣疯病试验

祛疯1号是目前治疗枣疯病的最佳药剂，防治的最佳时期是萌芽展叶期和盛花期至生理落果前。对病级3级以下的树，不论树龄大小，防治效果都很好；对4级以上的树，治疗恢复效果差；对幼小老弱树，必须在加强肥水管理的前提下，先复壮树势，再进行输液，疗效方能体现出来。防治效果与枣树品种无关。

Controlling Effects of Qiefeng No. 1 on Jujube Witches Broom

Qiefeng No.1 is the best controller on Jujube Witches Broom.Its optimum controlling period is from bud sprouting to elongating stage of leaf, or from full flower to physiological fruit dropping.It produces good effect on any age trees damaged by less than 3-grade disease,but shows little effect on any age trees damaged by more than 4-grade disease.If Jujube Witches Broom infects old or weak trees,we should first restore growth vigor by the stimulus of irrigation and fertilizer,then make a injecting treatment.There is no relevance between varieties and controlling effect.