How Can I Get Rid of Spider Mites on My Tree?
Spider mites are very small pests that attack almost any landscape plant, including evergreen and deciduous trees. The mites feed on the foliage of the trees, sucking liquid out of individual leaf cells. The damage results in yellowing or wilting leaves, leaf drop, and even death of the tree. Dusty, dry conditions exacerbate spider mite infestations, and fixing those conditions is an important part of cultural mite control. Does this Spark an idea?
Instructions
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Attach a high pressure nozzle to a garden hose. Turn the water on, and spray the tree bottom to top, focusing on the underside of the leaves, then from top to bottom. The water will knock off spider mites and spider mite eggs. It also removes dirt, making the tree a more suitable environment for natural predators of the spider mite.
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Apply a miticide to the tree according to the package directions. Do not use a general insecticide, which will kill natural mite predators. Reapply the miticide after 14 days to kill any mites that have hatched since your initial application.
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Release predatory mites onto the tree, such as the western predatory mite. Consult your local gardening center to find out which predatory mite is most appropriate for your area and tree species.
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Water any dusty paths or dust patches around the tree. Spider mite infestations increase dramatically in the presence of dust. Lay down a 2-inch layer of straw or another organic mulch to keep the dust down once the water dries.
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