Red Spots on Spider Plant Roots: Nematodes or Spider Mites?

Diagnosing Root and Leaf Issues in Spider Plants

Red spots on roots viewed under a microscope with worm-like structures suggest spider mite larvae, not nematodes. Spider mites (Tetranychus urticae) are tiny, red, and leave fine webbing under leaves. They cause yellowing, gritty leaf texture, and discolored foliage.

Treatment Options

• Green Solution spray: Water, alcohol, biodegradable soap, mineral oil (test on 2 leaves first).
• Commercial miticide if infestation persists.
• Prevention: Keep plants clean, dust-free, and well-hydrated.

Take a damaged leaf in a sealed bag to your county extension office for definitive ID before discarding plants.