Several factors can contribute to calcium deficiency, so it can be a process of elimination to figure out the cause. When the demand for calcium exceeds the supply, the tissues break down.īlossom-End Rot is usually caused by a lack of Calcium in the soil. Blossom-End Rot usually occurs when there are wide fluctuations of moisture in the soil which reduces uptake of calcium into the plant. It starts with a small, depressed, water-soaked area on the blossom end of the fruit. As the spot enlarges, it becomes sunken and turns dark brown or black in color and appears leathery.īlossom-End Rot is caused by a low concentration of calcium in the fruit (Calcium is needed for normal cell growth). Trees that are stressed are more likely to be affected. Ensure that your tree is planted well draining soil with adequate nutrition.Ī common problem in Tomato, Peppers, Eggplant and Squash.īlossom-End Rot usually occurs in immature fruit. Remove weeds, grass and other debris from around the base of trees to improve air flow and to limit potential moisture build up around the trunk. Treat the pruned site with a pruning sealer to protect it from further infection. Prune trees in late winter where possible and prune any affected limbs well below infected areas. Careful pruning, and cleaning of tools prior to pruning is essential. The bacteria enters the tree through injured bark or pruning wounds. The cankers will look darker than the surrounding bark. The leaves above the diseased area will curl, turn yellow and eventually stop producing new growth.īacterial Canker infections occur during cool, wet weather and are spread by water or transfer from pruning tools. Most common on Cherries and Plums but will also affect Nectarine, Apricot, Peach and other stone fruit trees.īacterial Cankers present with water-soaked, gummy looking lesions that form on the trunk or branches of trees. A sour smelling, rust coloured sap may ooze from these lesions. Practice good hygiene in your garden by cleaning pruning equipment between plants. Prune off leaves or fruit that are touching the soil and mulch well to prevent splash back of soil onto leaves. Practice crop rotation on seasonal crops. Avoid overhead watering as fungal diseases prefer moist environments. When buying edibles from your nursery, make sure they look healthy with green foliage that is blemish free.Įnsure that your soil is well-draining by mixing in good quality compost before planting. Plants can be sprayed with copper-based fungicides, however copper can build up in the soil and negatively impact the soil life so be mindful of how often you use it. Trees will most often recover quite well, prune off the affected wood and leaves and dispose of them carefully. The disease will remain dormant in immature fruit and present itself when the fruit begins to ripen.Ĭontrolling Anthracnose on plants is often a loosing battle, the best course of action for edible plants that have been infected is to remove them from your garden and carefully dispose of them. On trees, both the leaves and young twigs are affected, in severe cases defoliation can occur.įruits are also affected and will present with dark, sunken spots. Pink spores will begin to emerge within these sunken spots, triggered by periods of wet weather. As leaves age, these spots darken and expand in size. Plant leaves present with small, yellow or brown spots that are irregular in shape. This fungal disease affects many plants including vegetables, fruits and trees. Tomatoes, Cucumbers, Melons, Beans, Avocado & Mango trees are particularly susceptible.Īnthracnose can affect any part of a plant.
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