Touchdown herbicide damaged trees

[porcupine]

So I'm going to assess the damage on a shelter belt that was mistakenly spayed. Does anyone have any experience with it?

If a tree has a large section dead from the spray, where do you draw the line? 1/2 of canopy dead?
The spray company is going to replace any trees that are deemed too far gone.
Any help appreciated.

 

[boreality]

If the spray company is cooperating you've already got the battle won. There's a fomula to value trees and location is a factor. It's a glyphosate like roundup so if the tree is showing any symptoms you could expect that tree to be severly damaged and request replacement. Are lawyers involved or is everyone cooperating?
If everyone's cooperating then I'd just count the damaged trees and remove and replace as cheaply and quickly as possible. Write up a report and document stuff in case it's a big value fight. BTW I've never done a project like that myself, good luck. Selling arboriculture skills to a Saskatchewan farmer is like selling ice cream to eskimos.

 

[porcupine]

The Syngenta company rep and the land owner are meeting with me at the site on Tuesday. It sounds like Syngenta will cover all replacement costs, we will see.

So Heavy B, your saying all trees that show damage should be replaced?

Maybe if that damage is small, I could just prescribe a pruning of all the dead branches?

Its hard to speculate without seeing what we are talking about.

 

[boreality]

My understanding is these herbicides are systemic, or they move through the plants vascular system killing the whole plant after a small amount of foiliar exposure. I've never seen a partially glyphosate damaged tree go on to be a healthy tree but I've never really dealt with any posionings. I could maybe help with report writing format or editing or some research if you need any help get me on fb. No doubt there's some tree buzzers with more experience with this than me.

We'd be having more dirty thirties dust bowls if it wasn't for those shelter belts. Farmers hear that. Apparently carraganas saved the prairies.

What type of trees are you looking at?