How do you treat leaf curl on a plum tree?

Spraying the affected tree with a dormant-period spray that contains the fungicide chlorothalonil is an effective control for plum pocket. Wear protective clothing, apply the spray after the leaves fall or in late winter or early spring before the buds begin to grow.

What causes brown spots on plum tree leaves?

Leaf spot of plums and prune-type plums is caused by the fungus Coccomyces prunophorae. The fungus, its life cycle, and the disease it causes are very similar to those of cherry leaf spot. On plum leaves the spots tend to be smaller, and severely infected leaves often have a tattered appearance.

Why are the leaves on my plum tree curling?

Leaf-curling plum aphid secretes chemicals into the foliage that cause the young leaves to develop in a crumpled and distorted fashion. In this species, winged forms of the aphid develop during May and the winged adults then fly away to various herbaceous plant where they spend the summer.

Why are the leaves on my plum tree turning black?

Rust affecting plum trees is caused by the fungus Tranzschelia pruni-spinosae. It’s normally first noticed in August time with the underside of the leaves having a rusty-brown coating to them. The top sides of the leaves may also have small, irregular black marks on them, see the pictures below.

Will my plum tree recover from leaf curl?

It’s a very common disease, and in fact, ONLY infects these types of trees. If you have curly leaves in a plum, citrus, or another tree, it’s caused by something else. Leaf curl disease shows up in spring, does the damage, and then disappears (until next spring). It will have disappeared by late summer.

What causes leaf curl on plum trees?

Unlike leaf curl in peaches and nectarines, which is caused by a fungus, leaf curl in plums is caused by an infestation of the leaf curl plum aphid, Brachycaudus helichrysi. This insect sucks tree fluids from plum leaves, causing them to curl.

How do I get rid of brown rot on my plum tree?

For controlling brown rot in plums, there’s little you can do but these tips should help:

  1. Remove and dispose of all infected flowers, fruit or branches.
  2. Spray entire fruit tree thoroughly with a fungicide like lime sulfur, chlorothalonil, captan, thiophanate methyl, or myclobutanil.