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Gardens

SPIDER MITES

Spider mites are more closely related to spiders and are not insects. They have four pairs of legs, no antennae and a single, oval body region.

They are very small even at the adult stage being about 1/50 inch long. Like spiders they can produce a web.



Just a few of the types of spider mites are:

  • Southern red mite
  • Oak mite
  • Boxwood spider mite
  • Twospotted spider mite
  • Spruce spider mite
  • European red mite
  • Honeylocust spider mite

    Since spider mites mouths are small they attack individual cells of plants and remove the cell's contents making the leaf take on a yellow or bronze color and usually falls off plant.

    The spider mites that produce webs will cover the foliage with their silk that take on a dirty look.

    Spider mites are divided into types- warm weather and cool weather active.

    Warm weather mites are:

  • Oak
  • European red
  • Honeylocust
  • Twospotted- probably the most common mite which is found on more than 150 types of plants.

    Cool weather mites are:

  • Southern red
  • Spruce- found on spruce, pines, junipers and arborvitae

    Stages of the spider mite are:

  • Eggs- hatch in 1st week
  • Larvae- around for a few days
  • First nymphal stage- lasts a few days
  • Second nymphal stage
  • Adults- of which females are the largest between male and females

    The mites can be detected by shaking plant onto a white sheet of paper and check for mites.

    Control of spider mites best done with a full stream of water to wash them off the plants. Other control is with predatory mites, lacewings and ladybugs.


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