Black spots on leaves of my maple trees - Ask Extension
Any information regarding info on the leaves of my maple trees would be greatly appreciated
Knowledgebase
Black spots on leaves of my maple trees #752785
Asked May 28, 2021, 7:54 PM EDT
Any information regarding info on the leaves of my maple trees would be greatly appreciated
Addison County Vermont
Expert Response
Hi Diane,
THis is a common fungal disease of maple called anthracnose. It occurs in wet cool springs and causes those unsightly brown lesions. In some cases it is severe enough to cause defoliation but even if some leaves drop, the tree can withstand the damage. No fungicides are warranted, and if they were you would have had to spray back in early May or April as the leaves were coming out. Here is more info on this problem that is more unsightly than damaging:
THis is a common fungal disease of maple called anthracnose. It occurs in wet cool springs and causes those unsightly brown lesions. In some cases it is severe enough to cause defoliation but even if some leaves drop, the tree can withstand the damage. No fungicides are warranted, and if they were you would have had to spray back in early May or April as the leaves were coming out. Here is more info on this problem that is more unsightly than damaging:
https://ag.umass.edu/landscape/fact-sheets/maple-anthracnose
Thanks so much for this really helpful information. It is much appreciated.
Diane DaPolito
On Jun 3, 2021, at 4:43 PM, Ask Extension <<personal data hidden>> wrote:
