果树腐烂病是一种弱寄生真菌所致,特别是进入盛果期的树极易侵染。治愈率的高低,又与治早、治小有密切的关系。前几年,包头市土右旗果园防治果树腐烂病,多采用40%福美砷50倍液加0.2%的洗衣粉,治愈率均在98%以上。但近几年实行承包后,果树腐烂病有逐年加重的趋势。1986年搞了一次实地抽查,调查面积319亩,调查株数11820株,其中病株846株(包括重犯)。发病率7.24%,部分果区发病率高达13.6—14.4%,有的承包户的果树已死亡30%,急得到处购买治疗果 Fruit tree rot disease is a result of a weak parasitic fungus, especially into the fruit of the extremely infested stage. The level of cure, but also with early treatment, cure a small relationship. A few years ago, Baotou Tudoye orchard fruit tree rot disease control, and more use 40% Fortum arsenic 50 times plus 0.2% detergent, cure rates were above 98%. However, after the implementation of the contract in recent years, the decay of fruit trees has been increasing year by year. 1986 conducted a spot checks, the survey area of ​​319 acres, the survey of 11820 plants, of which 846 strains (including recidivism). The incidence rate of 7.24%, the incidence of some fruit areas as high as 13.6-14.4%, and some contractors have died 30% of fruit trees, anxious to buy treatment of fruit everywhere