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我县位于豫西丘陵山区，是全国苹果的主要产区，种植面积达３５万亩。据我们７月６日在崛山调查，苹果锈病病株率达７０％以上，病叶率达１２．４％，严重影响苹果产量和品质。 症状：苹果锈病又称苹果赤星病。病菌主要为害叶片、嫩梢、幼果和果柄。发病初期，叶片正面产生橙黄
My county is located in the hilly area of western Henan, is the main producing areas of the country’s apple, planted area of 350,000 mu. According to our survey on July 6 in Mount Wushan, the rate of diseased plants of apple rust reached more than 70% and the rate of diseased leaves reached 12.4%, seriously affecting the yield and quality of the apple. Symptoms: Apple rust, also known as apple brown spot disease. Pathogenic bacteria mainly damage leaves, tender shoots, young fruit and fruit stalks. Early onset, the positive orange leaves