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Plum Gall Mite



P_plmgllmte

Plum Gall Mite

Usually appear in

Spring to Autumn.


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Caused By:-     The MIte

Description

Plum Leaf Gall mites(Phytoptus similis (Nalepa)) are microscopic members of the arachnid class(mites, spiders, false scorpions, harvestmen etc.) and the Eriophyidae family(Gall mites). They attack a wide range of fruit and ornamental garden plants. Each plant which are attacked by gall mites tend to have a Genus and or species that attack that are specifically associated with that genus of plant. Phytoptus similis Tends to attacks plum leaf and other prunus species. Although their effects can be unsightly, few of them cause serious damage.
They feed by sucking sap from the leaf surface and in doing so they secrete toxic chemicals that act like natural plant growth hormones that stimulate new leaf epidermal cells to grow abnormally. These are the galls inside of which the mites live. In Plum Gall Mite attack the galls are on the upper surface of the leaf, but other gall mites causes galls to appear below the leaf surface. The Galls are light yellow which turn red on the top which is exposed to the sun.
Once the attack has begun killing the mites by spraying with fungicide will not stop the gall from forming, but should prevent the next years attack and formation of galls.
See also these other Galls ACER GALL MITES, ACORN GALL MITES, AZELAE GALL, BEECH GALL MIDGE, BLACKCURRANT GALL MIDGE, BROOM GALL MIDGE, CAMELLIA GALL, CROWN GALL, EUONOMUS GALL, FELT GALL MITES, FORSYTHIA GALL, GALLS, GALL WASP, GLEDITSIA POD GALL MIDGE, HEMEROCALLIS GALL MIDGE, HAWTHORN BUTTON TOP GALL MIDGE, KNOPPER GALL OF ACORNS, LEAFY GALL, LIME NAIL GALL MITE, OAK GALL WASP, PEAR LEAF BLISTER MITE, PINAPPLE GALL ALDELGID, ROBINS PINCUSHION, TURNIP GALL WEEVIL, VINE ERINOSE GALL MITE, VIOLET GALL MIDGE, WILLOW BEAN GALL SAWFLY.


Control

Spraying in the spring with fungicides should stop the attack, but the gall may still form if spraying is too late.
A winter tar wash may help kill off overwintering mites.
A Picking off and destroying damaged foliage may help to reduce the scale of next year’s attacks.
Improving the feeding and watering of affected plants may make them more resistant to these pests in future.



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