What is this ON a plant? (mander.xyz)

submitted 1 year ago by FlyingSquid@mander.xyz to c/plantid@mander.xyz

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This is on one of my mother's maples. What is it and what should she do about it?

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[-] ikapoz@sh.itjust.works 0 points 1 year ago* (last edited 1 year ago)

You may not need to, but pesticides can work. Read up.

https://hort.extension.wisc.edu/articles/maple-gall-mites-eriophyidae/

[-] FlyingSquid@mander.xyz 0 points 1 year ago

Great! Thanks so much!

[-] LibertyLizard@slrpnk.net 0 points 1 year ago

Hi, arborist here. I would advise against using pesticides to control this issue. The galls are completely harmless to the tree and the pesticides may cause harm both to you if you were accidentally exposed, and definitely to other invertebrates, many of which may be beneficial. Some may even help control the mites in future years.

[-] FlyingSquid@mander.xyz 1 points 1 year ago

Thanks. I think what my mother will do is just pick off the affected leaves that are really bad and leave the rest.

[-] LibertyLizard@slrpnk.net 1 points 1 year ago

Great, that’s basically what I’d recommend. Disposing of any leaves you pull off the tree and those on the ground away from the tree should help reduce the intensity of the issue.

this post was submitted on 03 Jul 2023

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