Affected stems are brittle and appear brown internally. TMV can reduce size and number of fruit produced. The earlier a plant becomes infected, the greater the loss. Fruit usually do not show any malformation. Occasionally, mottling, bronzing, and internal browning of fruit occur.
Internal browning is evident on mature but unripened fruit.
Control practices should begin before planting. Eradicate perennial and biennial weeds from the garden, field, greenhouse, and surrounding areas. Continue weed control during and after the growing season. Use TMV-resistant tomato varieties when feasible. Make sure that transplants are healthy and certified as disease free.