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当前,陕西省苹果生长已进入幼果期,病虫害相继发生。根据近期病虫发生动态,结合历年资料和耕作栽培、气象等因素综合分析,近期病虫发生动态如下:腐烂病:偏重发生,轻于去年,全省发生面积480万亩,较去年减少100万亩;全省平均病株率16.4%,低于去年的23.0%;平均百株病斑27.7个,平均病枝率4.6%,低于去年的8.9%;新病斑与重犯病斑占比22.9%,低于去年
At present, apple growth in Shaanxi Province has entered the juvenile period, pests and diseases have occurred. According to the recent occurrence of pests and diseases, combined with historical data and tillage cultivation, weather and other comprehensive analysis of factors, the recent occurrence of pests and diseases are as follows: Rot disease: emphasis occurred, lighter than last year, the province occurred an area of 480 mu, less than 1 million last year Mu; the average rate of diseased plants in the province was 16.4%, down from 23.0% last year; the average number of disease spots was 27.7, the average disease rate was 4.6%, lower than 8.9% of last year; the proportion of new lesions and recurrent lesions was 22.9 %, Lower than last year