Mottle leaf

Cherry leaves develop mottle and mottling from cherry mottle leaf virus, reducing tree vigor and production. The virus lives in wild cherries. Use virus-free stock, remove wild cherries nearby, avoid grafting with infected wood, and choose less susceptible cultivars than Bing or Royal Ann.

Remove affected material as you find it and clean up any fallen debris where mottle leaf spores can overwinter. Improve air circulation around susceptible plants through selective pruning. Avoid overhead irrigation during vulnerable growth periods. If the problem is persistent, your local Extension office can recommend current fungicide or bactericide options for your specific situation.