When Should I Spray My Plum Trees?
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...
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Similarly, you may ask, how do you treat leaf curl on a plum tree?
If leaf curl plum aphids are a chronic problem, two treatments of horticultural oil just as buds are swelling can be effective. Hard blasts of water can remove the aphids from trees if this is done early in the growing season before they have been able to shelter inside curled leaves.
Also, what is the best fertilizer for plum trees? For newly planted plums, fertilize in the early spring by broadcasting one cup of 10-10-10 fertilizer over an area that is roughly three feet across. In mid-May and mid-July, apply a ½ cup of calcium nitrate or ammonium nitrate evenly over an area about two feet in diameter.
Also asked, why are the leaves on my plum tree curling up?
Tightly curled leaves on a plum tree are a symptom of an infestation of leaf curl plum aphids. The infestation usually appears early in the growing season and affects only one branch or section of a tree. You might also notice a sticky residue on leaves and twigs, which is an excretion of the aphids called honeydew.
What should I spray on my plum trees?
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.
