That's a relief. Thank you.I don't know of any leaf feeders or diseases that would cause that type of damage to a cottonwood leaf. My guess would be late frost damaged the leaf in early bud break & it grew out to look shot-holed. New leaves will emerge intact with no damage.
Looks like insect activity to me...cottonwood leaf beetle ? Check with your ag extension or local arborist.Don't know your location..If your in a warmer climate zone, might be a second gen. late summer/fall.
Hi. Got your answer. I am in Northern Nevada. Chased down the pest name after finding thousands of webs all over my yard (hanging from every type of tree/bush/plant/fence/etc.) peppered with tiny pale sesame seed-sized things. All dangling in these webs. Some even floating thru the air on light breeze. Turns out these sesame seed things are actually the larval stage of the Cottonwood Shield Bearer. They were heading to the ground to pupate over winter. Here's a link to info...First post, we were told this is a cottonwood. We didn't notice this at first but the tree has leaves with holes in them. Is there something we should do? If so what ? Thanks in advance.
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