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根据当前病虫发生情况,结合气象、栽培因素,近年发生情况综合分析,陕西省植物保护工作总站预计苹果后期主要病虫害总体中等发生,发生面积4100多万亩次,较去年减少100万亩次,其中腐烂病偏重发生,发生面积600万亩;早期落叶病中等发生,局部偏重发生,发生面积700万亩;白粉病中等发生,延安偏重发生,发生面积380万亩;锈病偏轻发生,周围有柏树的果园偏重发生,发生面积110万亩;
According to the current occurrence of pests and diseases, combined with meteorological and cultural factors, a comprehensive analysis of the occurrence in recent years, Shaanxi Plant Protection Station is expected to occur in the latter part of the main pests and diseases of apple occurred moderately, with an area of more than 4100 mu, less than 1 million mu times last year, Among them, rot disease seriously occurred, with an area of 6 million hectares; early deciduous disease occurred moderately and local partial occurrence occurred, with an area of 7,000 hectares; powdery mildew occurred moderately and Yan’an preoccupied with an area of 380 hectares; Cypress tree orchard emphasis on the occurrence of an area of 110 mu;