The Q&A Archives: Wilting Leaves On Fire Thorn (Pyracantha)

Question: On certain parts of plant leaves wilt and die.Plants well watered and no apparent bugs

Answer: Pyracantha is subject to some of the same diseases that affect apples, so the browning may be a sign of one of those. You might want to consult with your county extension (566-0673 or 328-4800) to identify the cause of the browning and determine if it can be treated by either a spray program now or quite possibly by a preventive one beginning during the winter and/or spring, since many of the problems need to be treated then rather than when the actually appear on the foliage. In the meantime, remove and destroy the affected leaves and do a very thorough clean up in the fall to try to limit the source of reinfection for next year.

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