苹果树叶卷曲。影响果树的疾病。真菌变形症状。起泡、肿胀、扭曲的叶子变厚并严重变形。损害。农业、害虫控

ree leaf curl. Diseases affecting fruit trees. Fungus deformans symptom. Puckered blistered distorted Leaves thickened and severely distort. Damage. Concept of farming, pest control, yield loss. Rotten. Crop failure. Disease of agricultural plants. Spotted yellowed diseased leaf. Leaves Infection. Cultivation problems. Spotted, yellowed and diseased leaf affected by a disease or pests caused by harmful insects, plant fungi, thrips and diseases. showing leaves with Infection. Sclerotinia virus. Verticillium. anthracnose, septoria