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Avocado brown mites feed on the upper leaf surface of avocado leaves, causing the upper leaf to appear bronzed or scorched. A miticide may be required if natural predators are absent. This mite feeds on the underside of leaves, weaving white webs by the foliage's veins for protection as it sucks its chlorophyll. They usually have numerous bristles covering the legs and body. The result is an avocado tree with brown leaves which fall prematurely, exposing wood and fruit to sun that can burn them. https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=18781 They are dark brown and oval and produce two generations per month. Attacks upper leaf surface. Mites – Mites cause similar damage as lace bugs, but leaves may also take on a bronze appearance and the pests will be difficult to see with the naked eye. Snails can be a problem in California. They lack antennae and body segmentation. Avocado brown mite and the sixspotted mite are the two most common mite pests of California's 75,000 acres of commercial avocados. When symptoms appear, sprays of horticultural oils or pyrethrin are recommended avocado tree treatment. Some mites spin fine webs as they feed, similar to those of spiders. It may also feed on the fruit and cause a scar which will reduce the marketing grade of the fruit. Trees injured in proportion to the amount of green leaf area lost. See persea mite for further details. Adult mites have eight legs and an oval body, with two red eyespots near the head end of the body. The webbing is a good way to identify the mites as persea mites. Minor pests, which must occasionally be treated are Brown Mite, Six Spotted Mite, Omnivorous Looper, Western Leafroller, and Greenhouse Thrips. Persea mites feed in colonies beneath protective webbing in nests that are formed along midribs and veins on the undersides of avocado leaves. The main pests of avocados in southern California are Avocado Thirps and Persea Mite. Generally, outbreaks of avocado brown mite occur in areas with a coastal or intermediate climate in southern California. The avocado brown mite is brownish in color and about the size of the dot over the "i" on this page. While they are not tolerant of high temperatures of 90°F (32°C) and up, they can survive in the standard temperature thresholds for the avocado … Six-spotted Mite is very harmful; even a small population can cause massive leaf shedding. Avocado Brown Mite Avocado Thrips Branch and Twig Borer Brown Garden Snail Deer False Cinch Bug Fuller Rose Beetle Greenhouse Thrips June Beetles (Scarabs) Ominivorous Looper Orange Tortrix Persea Mite Rodents Six-spotted Mite Soft Scales Avocado Brown Mite. These mites are arthropods that occur sporadically in avocado plants. 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