Common Plant Diseases and Their Effective Solutions

Powdery mildew affects specific plants with white, powdery growth on leaves. Plant-resistant varieties improve air circulation, and fungicides are used early for control. Regular spraying prevents damage to fruit and vegetables.

To prevent black spots on roses, Pick resistant types. Remove infected leaves, avoid splashing water, prune before spring, and spray sulfur or copper fungicide every 1-2 weeks, alternating during the growing season.

To stop shot hole disease, Pick resistant trees, remove fallen leaves and prune infected twigs/branches. Spray with Copper Spray: Peaches after harvest and other trees in September before fall rains.

To control black knots on plums, Pick Japanese plums, prune knots before Feb 1, and dispose of them. Spores spread in spring, so spray lime sulfur in dormancy and wettable sulfur at bloom.

Prevent late and early blight: Space and prune, and avoid overhead watering. Remove infected leaves. Spray copper every 7-10 days for early blight; dispose of infected plants; spray copper every 5-10 days for late blight.