That comment relates to how quickly they absorb the herbicide and translocate it within their system. That has nothing to do with the recovery, as hindered by heat stress or it's relief by keeping the plants watered. I know it is your nature to think that whatever I say is inherently wrong and needs constant vigilance and reinforcement to keep believing, but your other experts recommended watering, too. Nothing in the statement you quoted refers to recovery treatments, only to the relative effects of the herbicide on different portions of the tree population.
Let's look at this from a different perspective: It's hot, and your very sick trees are thirsty. Their botanical processes to make more energy have been disrupted, and their cellular processes are only marginally working.
Do they get chicken soup, or withering doses of "make it on your own"?
The fact that the young trees die quicker and easier doesn't mean that the treatment regimen is any different. Had you asked me which plants were the most suceptible to death, having assassinated many trees with herbicides, I would have told you that the biggest trees are the hardest to kill. Conversely, the youngest are very much the easiest.
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You would also be expected to pay for an appraisal arborist's report. My understanding is that they don't work cheap, either. Since you would be paying them for the service, it doesn't matter whether they are in your county or not. Just how much you are willing to pay, and how much they are willing to do it for.
Let's look at this from a different perspective: It's hot, and your very sick trees are thirsty. Their botanical processes to make more energy have been disrupted, and their cellular processes are only marginally working.
Do they get chicken soup, or withering doses of "make it on your own"?
The fact that the young trees die quicker and easier doesn't mean that the treatment regimen is any different. Had you asked me which plants were the most suceptible to death, having assassinated many trees with herbicides, I would have told you that the biggest trees are the hardest to kill. Conversely, the youngest are very much the easiest.
..........................................................
You would also be expected to pay for an appraisal arborist's report. My understanding is that they don't work cheap, either. Since you would be paying them for the service, it doesn't matter whether they are in your county or not. Just how much you are willing to pay, and how much they are willing to do it for.