Necrotic Rusty Mottle (Lambert Mottle) and Rusty Mottle

Cherry shows severe leaf mottle and necrosis, with buds failing to open and twigs dying, or mild rusty discoloration of older foliage. These distinct graft-transmissible viruses spread slowly in orchards. Remove diseased trees as soon as noticed. Use only virus-tested propagation material for new plantings.

Reduce moisture around affected tissue by improving drainage and air circulation. Remove rotted material cleanly and dispose of it away from the planting area. Avoid wounding healthy tissue during cleanup, as fresh wounds create new entry points. If the problem keeps returning, evaluate whether the site is too wet or poorly drained for the species you are growing.