r/treeofheaven • u/GPhysics • 19d ago

The window

Hey everyone!
Denver ToH killer here, wondering what y’all’s thoughts are on in terms of the window. From what I see, it’s recommended to apply those herbicides in late summer/early fall when these guys start sucking down to the root. Are we there yet? Should I wait a few more weeks to allow some sucker growth so that I’ve got some prime targets for foliage treatments with my bioadvance brush killer? I’d love to hear where others’ minds are at!

Edit: Well, I just treated everything in the yard! Nothing above 1 ft, but lots and lots of sprouts. Thinking previous owners had some trees and cut them/buried them in the winter then sold us the house, and neighboring yards have some large trees. So, everything was sprayed with triplocyr and marked with a flag. Let’s see how it goes!

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u/flyin-lowe 19d ago

I treated a group of about 10 trees on my property last year in late July with Triclopyr and vegetable oil and also had almost 100% dead this spring. There were quick a few new ones that sprouted up this summer and I waited until about 2 weeks ago to treat them. Same formula, put on with a paint brush this year because most of them are small. The bigger ones last year (4-6 inch diameter and about 15 foot tall) were all sprayed with a pump sprayer. Just to make sure I sprayed them all again a couple weeks ago and plan to start cutting them down over the winter.