Tomato (Solanum lycopersicum)-Tomato Yellow Leaf Curl

Cause The Tomato yellow leaf curl virus was found in California during 2007 and is transmitted by adult silverleaf whiteflies, but not by seed. This viral disease has not been reported in the Pacific Northwest.

Symptoms The margins of tomato leaves turn yellow and a yellow mottling of the leaf area. Leaves cup upwards, may be reduced in size, and flowers may drop.