The most vulnerable plants to these fungal problems are all in the Rose Family but most fruit bearing trees need care and attention to avoid infections.
Fungal diseases: POWDERY MILDEW invades the tissues of leaves with white patches of soft mold. Leaves will fall off and spread the fungal disease to other plants. BOTRYTIS infects leaves and stems with thick gray mold turning them yellow and drop. Stems may rot at ground level.
CORAL SPOT: This is a plant pathogen that causes blisters and cankers on broadleaf trees. It appears on wood and leaves with wilt in summer. Spots are pinkish in color. Prune out diseased branches right away.
SILVER LEAF: This is fungal and attacks plants in the rose family like cherry and plum trees. Whole branches die. Prune off infected area or it spreads and the whole tree dies. APPLY LIME SULPHUR TO PREVENT THESE DISEASES.
Bacterial infections like fire blight turns leaves brown and they drop off. First signs of trouble are black edges on foliage or shriveled stems and leaves. This attacks plants like crab apple, ash, hawthorn, Quince and cottoneaster. Many different blight effect vegetables like squash and cucumber so be aware and look for signs and symptoms of diseases. The fungus lives in the soil and spreads with dried shriveled leaves and soft rotted stems. Using rotation of crops will help eliminate the problem. Some are early in the season with rains or dampness and others occur late in a hot summer. Most can be sprayed with all purpose fungicides.
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