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TWOSPOTTED SPIDER MITE TWOSPOTTED SPIDER MITE TWOSPOTTED SPIDER MITE TWOSPOTTED SPIDER MITE
SPIDER MITE
SPIDER MITE

Photo Courtesy of UNIVAR Photo Courtesy of UNIVAR Photo Courtesy of UNIVAR Photo Courtesy of UNIVAR
1.Antenna- none 6.Thorax- none MITE 1.Antenna- none 6.Thorax- none MITE
2.Eyes 7.Petiole- none 2.Eyes 7.Petiole- none
3.Head-gnathosoma 8.Idiosoma 8 3.Head-gnathosoma 8.Idiosoma 8
4.Legs- 8 9.Color- brownish to blackish 4.Legs- 8 9.Color- brownish to blackish
5.Wings- none 10.Other- tiny, related to ticks, 5.Wings- none 10.Other- tiny, related to ticks,
spiders, and chiggers 3 spiders, and chiggers 3

Life Cycle Life Cycle
Mites go through a rapid life cycle, usually taking only 2-3 weeks to complete. Mites go through a rapid life cycle, usually taking only 2-3 weeks to complete.
Hundreds of eggs can be produced, which hatch in around a week. Larvae 4 Hundreds of eggs can be produced, which hatch in around a week. Larvae 4
and nymphs, which may go through one or more instars, only take another and nymphs, which may go through one or more instars, only take another
week or two. This results in large populations in a minimal time. Photo Courtesy of UNIVAR week or two. This results in large populations in a minimal time. Photo Courtesy of UNIVAR

MITES Actual size 1/32” MITES Actual size 1/32”
Mites are a close relative to spiders, with eight legs. There are many varieties of mites, some Mites are a close relative to spiders, with eight legs. There are many varieties of mites, some
affect man, others infest birds and/or animals. They can also infest agricultural products and affect man, others infest birds and/or animals. They can also infest agricultural products and
crops, and even live in the soil. Spider mites, Clover mites, Scabies mites, Chigger mites, To- crops, and even live in the soil. Spider mites, Clover mites, Scabies mites, Chigger mites, To-
mato Russet mites, and Bermudagrass mites are common pests in Arizona. Chigger and Sca- mato Russet mites, and Bermudagrass mites are common pests in Arizona. Chigger and Sca-
bies mites are parasites and cause problems for humans. Do not try to diagnose by insect bites bies mites are parasites and cause problems for humans. Do not try to diagnose by insect bites
on a person, this is a job for a doctor. on a person, this is a job for a doctor.

Spider Mites: Spider Mites:
Spider mites are extremely tiny, and get their name from the silken webs they leave on the Spider mites are extremely tiny, and get their name from the silken webs they leave on the
underside of leaves. They can be white, red, or green in color. They cause damage by sucking underside of leaves. They can be white, red, or green in color. They cause damage by sucking
the sap from plants, especially citrus. There are many varieties of Spider mites. the sap from plants, especially citrus. There are many varieties of Spider mites.
Clover Mites: Clover Mites:
These mites are about 1/32nd inch in size, and colored reddish-brown. They feed on a wide These mites are about 1/32nd inch in size, and colored reddish-brown. They feed on a wide
variety of plants, but do not leave a silken trail. variety of plants, but do not leave a silken trail.
Scabies Mites: Scabies Mites:
Scabies mites are round, a dirty white color, and extremely small. They have very short legs. Scabies mites are round, a dirty white color, and extremely small. They have very short legs.
Scabies mites will burrow into the skin within 2–5 minutes after contacting it. They can cause a Scabies mites will burrow into the skin within 2–5 minutes after contacting it. They can cause a
life-threatening disease. life-threatening disease.
Chigger Mites: Chigger Mites:
Chiggers are microscopic hairy red mites. An infested person will have severe itching, usually Chiggers are microscopic hairy red mites. An infested person will have severe itching, usually
around the edges of clothes. In the area of itching, there will be a red spot, which is the Chigger around the edges of clothes. In the area of itching, there will be a red spot, which is the Chigger
larva. The red spot will eventually take on a hive-like appearance. larva. The red spot will eventually take on a hive-like appearance.
Tomato Russet Mites: Tomato Russet Mites:
The Tomato Russet Mite is about 1/125th inch long and has a yellowish-white, elongated body The Tomato Russet Mite is about 1/125th inch long and has a yellowish-white, elongated body
with two pairs of legs. It only attacks tomatoes. with two pairs of legs. It only attacks tomatoes.
Bermudagrass Mites: Bermudagrass Mites:
This mite is a serious pest for bermudagrass. The first sign of infestation is a slight yellowing This mite is a serious pest for bermudagrass. The first sign of infestation is a slight yellowing
and twisting of the leaves. Adults are elongated, and are wormlike in appearance. and twisting of the leaves. Adults are elongated, and are wormlike in appearance.

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