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通过周年大面积调查,初步摸清了陕西主要优质果区洛川县苹果腐烂病的大体发生情况。苹果腐烂病的发生每年有2个高峰期:5月份和9月份。发生程度受栽植密度、树龄、品种、土壤类型、果园地貌特征、管理水平的影响。同时,通过对当地开展的防治药剂筛选试验结果总结的基础上,提出了管理意见。
Through the annual large-scale survey, preliminary find out the main high-quality fruit area in Luochuan County, Shaanxi Province, the incidence of apple rot. The occurrence of apple rot disease has two peaks each year: May and September. The occurrence degree is affected by planting density, tree age, variety, soil type, orchard landform characteristics and management level. At the same time, the management opinions were put forward on the basis of summarizing the results of local screening tests on pesticides.