Tetranychus urticae: Two-spotted Spider Mite

Egg
Larva
Deutonymph
Female
Male
Web
Family
Tetranychidae
Species
Tetranychus urticae
Common Name
Two spotted spider mite
Appearance
Pale to light green. Two black spots on back.
Description of Stages
The inital larvae are the size and shape of an egg, with six legs, red eyes, and a transparent body. The protonymph is larger and more oval than the first larvae and is greenish with spots forming, and has eight legs. The deutonymph has more pronounced spots and the males can be distinguished by his smaller body, pointed abdomen, and smaller spots.
Location on Tree
Underside of leave, where they will appear as tiny reddish, yellowish, greenish, or blackish moving dots, depending on the host plant.
Web Appearance
Web is on underside of the leaf, spanning the midrib from one half of the leaf to the other. Can cover entire parts of the plant.
Egg Appearance
Eggs are spherical and pearly white
Egg Location
Eggs are found beneath the web on the underside of the leaf
Niche
Phytophagous

 

 

Tetranychus urticae: Two-spotted Spider Mite

 

 

 

 


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Michigan State University

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