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Types of Disease on Apricot Trees
Types of Disease on Apricot Trees. Versatile apricots have a sweet-tart flavor that makes them ideal for baking into pies or jams or for pairing with savory dishes. These trees grow in USDA hardiness zones 4 to 8 and need full sun and well-draining soil to stay healthy. Humid weather, stress and insufficient air circulation can cause disease. Some...
Versatile apricots have a sweet-tart flavor that makes them ideal for baking into pies or jams or for pairing with savory dishes. These trees grow in USDA hardiness zones 4 to 8 and need full sun and well-draining soil to stay healthy. Humid weather, stress and insufficient air circulation can cause disease. Some diseases are serious and can ruin your crop or kill your tree, while others won't do much damage.
Brown Rot
This fungal disease occurs during wet weather. The fruit develops brown dots that grow to take over the whole fruit, then rot. Gray mold spores occur, and the fruit eventually shrivels up. Brown rot can distort branches and cause dieback. Prune regularly to create an open canopy and remove rotten fruit from the site for prevention; control with a fungicide spray.
Peach Leaf Curl
Apricots can get peach leaf curl, which crinkles and distorts the leaves. Flowers and fruit can drop early, and leaves may turn reddish. If not treated, trees can eventually die from this disease. Apply fungicide to treat peach leaf curl, and prevent most cases by watering, fertilizing and annually pruning the apricot trees to keep them in good health.
Shothole Disease
Coryneum blight, or "shothole" disease, is a fungal disease that mars the cosmetic appearance of your fruit. Affected fruit is still safe to eat, but doesn't look very attractive. This disease causes tiny brown flecks to appear all over the fruit right at harvest time. These holes are darker in color than those from brown rot, and the holes can have raised brown rings. Shothole disease can cause cankers to appear on twigs and limbs and pus to ooze from the tree bark. Control it by applying fungicide.
Scab
Scab occurs during moist weather, especially on trees that have a dense canopy of branches. This disease causes tiny olive colored spots to appear on the fruit. Over time, the spots merge into large blotches. The fruit can become distorted or can crack open, notes the University of Rhode Island. Prune off infected branches to control this disease, which is cosmetic and not serious.
