Nematodes: Tiny Worms, Big Problems

Nematodes are microscopic worms (less than 1/16 inch long), not insects. Some are beneficial, parasitizing plant pests, but others damage roots and occasionally foliage. They infest a wide range of plants, including woody species, flowers, and vegetables. Symptoms mimic overwatering: stunted, yellowing plants that slowly decline and die. Diagnosis usually requires a professional soil test.

Where They Thrive

Nematodes are most common in sandy, moist soils in warm climates like the Southeast. Control is difficult; soil solarization may help. Consult your local Cooperative Extension Office for specific advice.

Professional Fumigation

Complete soil fumigation can control nematodes, but it must be done by a professional certified to handle the required pesticides.