How do you treat fungus on a plum tree?
Prune out all infected branches in late winter (late February through the end of March) and destroy them by burning, burying, or throwing them away. Remove at least 3-4 inches of healthy tissue below each knot to ensure elimination of the fungus.
What fungus attacks plum trees?
Armillaria Root Rot (Armillaria mellea) The soil-borne fungus infects the root and crown of the plum tree, and by the time you can see above-ground symptoms, it is likely too late to save the tree.
How do you get rid of fungus on fruit trees?
Directions: Dissolve baking soda in warm water and add soap. Mix carefully and test on the tree before spraying the whole thing. If this solution is too strong it will burn the leaves. Never spray this in direct sunlight, try to do it on days with little to no wind and in the late evening hours.
Why are my plum tree leaves turning red?
Why are Leaves Turning Red on Plum Tree? Rust and root rot are the most common reasons for plum leaves turning red. One cause of red plum leaves is rust, a fungal disease that results in bright yellow spots on the leaves with red spores on the undersides.
What do I spray my plum tree with?
Once the fruit begins to develop and the husks are pulling back from the fruit, spray plums with spinosad, esfenvalerate, or permethrin to control the twig borers. Spray again with a mix of fungicide, malathion, and sulfur to control leaf curl, plum pocket, scab, and brown rot, and aphids.
Is my plum tree diseased?
Fungal plum tree diseases Brown rot is fairly easy to spot due to the small grey bumps that form on the fruit, underneath which the flesh will be discoloured. Left to develop, the fruit will shrivel on the branch. Brown rot can spread quickly so we recommend removing and burning all affected fruit as soon as possible.
How do I save my plum tree?
To revive a dying plum tree, remove pests with chemical or organic sprays or kill them with insecticidal soap and water. Also, remove fungi-affected fruits and branches and spray them with fungicides. Lastly, adjust the watering schedule, fertilize, and use well-draining soil.
When should you spray a plum tree?
Spray every 10 days during fruit development. STOP spraying a week or so prior to harvesting. Your local extension office or a good nursery can help you further to create a schedule for spraying plum trees and offer advice on products and/or non-chemical options for controlling disease and pests on your plum tree.
Why does my plum tree look like it’s dying?
A number of fungal diseases may also contribute to lost leaves on a plum tree, and these include Armillaria root and crown rot, Phytophthora, and Verticillium wilt. Foliar diseases, such as plum leaf spot, may be the culprit too.
After you diagnose the problem at hand, use the appropriate control measures to protect your plum trees. Apply a copper-based fungicide or one containing the active ingredient chlorothalonil during fall as a preventive control measure.
Why are the leaves on my plum tree red?
One cause of red plum leaves is rust, a fungal disease that results in bright yellow spots on the leaves with red spores on the undersides. It can be treated by spraying fungicide monthly leading up to harvest if the outbreak is early, or once after harvest if the outbreak comes later.
What are the common diseases of plum trees?
Plum Tree Diseases: Fungal 1 Armillaria Root Rot ( Armillaria mellea) 2 Black Knot ( Apiosporina morbosa) 3 Brown Rot ( Monolinia spp.) 4 Powdery Mildew (Sphaerotheca pannosa and Podosphaera tridactyla) 5 Rust ( Tranzschelia discolor)
How do you know if a plum tree is infected?
Plum pox virus (PPV) affects the fruit of plum trees. It’s spread mostly by infected aphids, but may also be spread from infected tree tissue making contact with healthy plum trees. Symptoms include crinkling, curling, or puckering of leaves and yellow incomplete rings on the surface of fruit.