Autumn blaze leaf curl

Question: 2 yr old autumn blaze, from seed. 5 feet tall.  1 of 5 identical trees with this presentation

responder: Deb Reierson  Replied September 25, 2024, 10:06 PM EDT
response: Autumn Blaze maples are a cultivar of red maple and silver maple. they are propagated from cuttings. if you grew these trees from seed, they will likely not be Autumn Blaze trees.  That said, I can't really tell what is wrong with your tree. is it one of 5 that is affected or all 5?. It may be lack of water since we are now in a dry spell. Young trees need about 5 gallons of water per week for the first 2-3 years.  Have you fertilized around it? They don't need any fertilizer so if they are growing in a lawn that gets fertilized they could be burnt from too much nitrogen. It also looks like it could be mites, from the photo you sent. You could send a sample to the diagnostic lab for identification, Instructions are in the link below. I would call them to make Sure you  collect the sample correctly. https://pdc.umn.edu/ https://trees.umn.edu/autumn-blaze%C2%AE-freemans-maple-acer-x-freemanii-%E2%80%98jeffersred%E2%80%99

responder: The Question Asker Replied September 26, 2024, 7:29 PM EDT
response: This is one of 5 showing like this.  I am suspecting a drift of herbicide from treatment of soybeans across the road.  I was in the veg garden when they sprayed.  I could smell it, and within a week the tree looked this way.  It killed a large Marigold in the garden, in line to the maple location.Does this look like it could be the herbicide ?Also, will it grow out of it next year ?Thanks On Wed, Sep 25, 2024, 9:06 PM Ask Extension <<personal data hidden>> wrote:

responder: Deb Reierson  Replied September 27, 2024, 8:21 AM EDT
response: This definitely could be herbicide drift. Especially since you know they sprayed the area nearby. If the leaves are more damaged on one side, that would increase the suspicion of drift.

responder: The Question Asker Replied September 29, 2024, 9:00 AM EDT
response: Thank you so much.  I am concerned whether this will grow out, or recur in the leaves next year.   On Fri, Sep 27, 2024, 7:21 AM Ask Extension <<personal data hidden>> wrote:

responder: The Question Asker Replied September 29, 2024, 12:55 PM EDT
response: I see how it continues to make the curled leaves.  On Sun, Sep 29, 2024, 7:55 AM Janet Lohrentz <<personal data hidden>> wrote:Thank you so much.  I am concerned whether this will grow out, or recur in the leaves next year.   On Fri, Sep 27, 2024, 7:21 AM Ask Extension <<personal data hidden>> wrote:

responder: Deb Reierson  Replied September 29, 2024, 1:14 PM EDT
response: I see the it is a very young tree which makes it difficult to say how well it will recover. Since the damage is to only one of the trees, it was probably not a high concentration. The damage doesn't look too extensive here.  Keep it watered well until the ground freezes. if you haven't already, wash it off with your hose. do the same for all of the trees. And you may want to talk with your farmer neighbor about drift and perhaps a heads-up next time as a courtesy. you do't want to out there gardening when they are spraying.

responder: The Question Asker Replied September 29, 2024, 1:20 PM EDT
response: Thank you.  This has been immensely helpful.  I appreciate your advice ! On Sun, Sep 29, 2024, 12:14 PM Ask Extension <<personal data hidden>> wrote: