Fig Mosaic Disease

You see mosaic patterning or mottle on common fig leaves, especially if trees were collected from unknown sources. Fig mosaic, likely viral, circulates between fig trees through grafting and propagation. Use only certified, virus-tested planting stock. Symptoms may be subtle and cause little real damage in the Willamette Valley climate.

There is no cure for viral diseases. Remove and destroy infected plants to prevent spread to healthy ones nearby. Many viruses spread through insect vectors like aphids and leafhoppers, so managing those populations helps slow transmission. When replacing removed plants, choose virus-resistant varieties if available and purchase certified virus-free stock from reputable nurseries.