Diseases of Prunus aviculare and their controlDiseases of PrunusThe main disease of bird cherry is red spot disease of bird cherry. The main symptoms of the disease are: nearly circular orange-red spots appear on the leaf surface. In severe cases, they will turn black-red, the back of the leaves will bulge, black spots will appear, and the leaves will dry up and fall off. In addition to the leaves, the fruits may also be affected by this disease. Red round spots will appear on them, and the fruits will fall off in the later stage. PreventionIt is necessary to prune the branches and leaves of the wild cherry tree in time and remove all diseased branches. You can spray the tree with Bordeaux liquid for prevention. Once the disease is discovered, you can choose to spray methyl thiophanate wettable powder or mancozeb wettable powder for prevention and control. |
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