Occurrence Regularities and Control Measures of Apple Glomerella Leaf Spot in Pingyuan County of Shandong Province
Apple glomerella leaf spot is one of the main diseases that caused early defoliation and yield reduction of apple in Pingyuan County,Shandong Province in recent years.It spreads fast and has strong harmfulness,causing serious losses to fruit growers.Through field investigation,literature review and orchard test,the symptoms,occurrence regularity and control measures of apple glomerella leaf spot were summarized and put forward in Pingyuan County of Shangdong Province for reference.
apple glomerella leaf spotoccurrence regularitycontrol measurePingyuan County
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