Bigleaf Maple Decline (Bigleaf Maple Dieback)

Bigleaf maple trees show progressive branch dieback, leaf yellowing, and eventual death from stress and pathogens. Improve growing conditions.

Good sanitation is your most effective tool against bigleaf maple decline (bigleaf maple dieback). Remove and dispose of infected plant material, clean up fallen debris, and sterilize your pruning tools between plants. Reduce leaf wetness by watering at soil level and spacing plants for adequate air movement. These practices reduce the pathogen load in your garden over successive seasons.