see new fact sheet on Spider Mites
Several species. Adults and young: Tiny (barely visible to naked eye), red or greenish red. Found on underside of leaves. Not classified as insects.
Muskmelon, cantaloupe, beans, blackberry, cucumber, melons and tomato.
Yellow specks and fine webs on leaves. Plants and fruits are stunted. Damage on strawberry usually occurs in hot, dry seasons, and may be severe.
Throughout United States.
The majority of spider mite species overwinter as eggs on plant hosts. Immature mites hatch in spring and develop through several instars. High populations of spider mites are favored by hot, dry weather. Multiple generations occur annually.
A spray of either cold water or a mix of wheat flour, buttermilk, and water onto the leaves will help to control the mites.
Lacewings, lady beetles, and predatory mites all prey upon spider mites.
For Beans (snaps & limas),Cucurbits (cantaloupes, cucumber, squash, pumpkins, and watermelons), Strawberry, and Tomatoes: Treat when damage appears. Wait 2 days after the last application before harvesting the above crops except beans; you must wait 7 days after the last application before harvesting beans.
Notice: Because pesticide labels can change rapidly, you should read the label directions carefully before buying and using any pesticides. Regardless of the information provided here, you should always follow the latest product label when using any pesticide. If you have any doubt, please contact your local Extension agent or pesticide dealer for the latest information on pesticide label changes.
Disclaimer: Commercial products named on this site are for informational purposes only. Virginia Cooperative Extension does not endorse these products and does not intend discrimination against other products which also may be suitable.
Prepared by Alexandra Spring and Eric Day (Modified from a publication by the USDA)