Tomato spotted wilt virus (TSWV)

Symptoms

Bronzing or rings on leaves and fruit; stunting or necrotic streaks; often associated with thrips.

How to verify

Compare the photos above with the plant, and check the symptom description against the look-alike records below before acting. The source guide does not carry a separate laboratory verification note for this record.

Next step

Remove infected plants and weeds, use clean transplants and resistant varieties, and manage thrips with monitoring and integrated control. Insecticides do not cure infected plants.

P. persimilis: allowed / avoid

*N/A - No foliar pesticide applied*

Label matters

Active ingredients below are examples, not universal prescriptions. Confirm the diagnosis; use only products registered for tomato and the target problem in your country; and follow the current label for dose, pre-harvest interval, worker protection, compatibility and re-entry. Rotate IRAC/FRAC modes of action. When symptoms are uncertain, obtain a laboratory or extension diagnosis. Integrated pest management (IPM)—sanitation, resistant varieties, irrigation management, monitoring and biological control—should be the first line of defense.

Look-alikes to rule out

Early blight (Alternaria)

Late blight (Phytophthora infestans)

Gray mold (Botrytis)

Bacterial speck