Brown rot is a fungal disease that is common in fruit trees not using an organic program. It that may cause serious damage to stone fruits during wet seasons. Prolonged wet weather during bloom may result in extensive blossom infection. Early infections appear as a blossom blight or twig canker. Later infections appear as a rot of ripening fruit on the tree and in storage. Spring infections arise from mummified fruit of the previous season that remains attached to the tree or has fallen to the ground.
The solution is the organic program and preventative spraying with garlic pepper tea, neem or hydrogen peroxide. And did I mention root flares - make sure they are visible and not covered with mulch or soil.
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