天水市位于甘肃省东南部,是全国优质苹果生产基地之一。据2008年统计,全市苹果栽植面积已达8万hm2,其中优质果园5·73万hm2,挂果面积3·74万hm2,产量80万t,产值11·07亿元,苹果产业已成为天水市强市富民的支柱产业。近10年来,天水市苹果腐烂病发生呈逐年加重趋势,已严重威胁苹? Tianshui City is located in the southeast of Gansu Province, is one of the country’s high-quality apple production base. According to the statistics of 2008, the planting area of ​​apple in the whole city reached 80,000 hm2, of which 57,300 hm2 were high-quality orchards, with an area of ​​374,000 hm2, with an output of 800,000 tons and an output value of 1,110 million yuan. The apple industry has become the city of Tianshui Strong city rich people’s pillar industries. In the past 10 years, the occurrence of rotting apple in Tianshui City has been increasing year by year, which has seriously threatened Ping.