Question of the Week – Spider Mites

This week, the question was a two part question: What is causing the stippling effect to these strawberry leaves?

Photo Credit: T Bilbo, Clemson Extension.

The stippling effect seen on the upper surface of this strawberry leaf is caused by two-spotted spider mite feeding damage. When the mites pierce the epidermis of the leaf to extract the sap, the cells begin to collapse, forming a chlorotic region of the leaf.

What are the translucent spheres on the underside of the strawberry leaf?

Photo Credit: T Bilbo, Clemson Extension

The translucent spheres are spider mite eggs.

This week’s questions are from Tom Bilbo Ph.D., Assistant Professor, Research and Extension Specialist, Vegetable and Strawberry Entomology.

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