Crossbow sprayed near fruit tree. - Ask Extension
is it safe to spray crossbow on blackberries growing 3-5 feet from my fruit tree?
Knowledgebase
Crossbow sprayed near fruit tree. #866921
Asked May 03, 2024, 2:53 PM EDT
is it safe to spray crossbow on blackberries growing 3-5 feet from my fruit tree?
Washington County Oregon
Expert Response
Crossbow will damage trees if the spray gets on the tree. It does not move once it is in the soil.
But not can get to trees in two ways. First, if your spray droplet size is small because the sprayer was pumped too high and the wind is blowing, it can move to the fruit trees and damage them.
The second way it gets there is the unique volatility that Crossbow has. If the weather is above 75 degrees or will get above that in the 8-10 hours after spraying, I advise people not to spray as the active ingredient in the herbicide can come off the leaves you sprayed it on and move in the wind direction onto to other plants.
Spraying in the evening (assuming no wind) may reduce the volatilization risk but people should not to use Crossbow in home landscapes close to any plants they value and anytime it is hot and/or windy.
Chip Bubl OSU Extension/Columbia County, recently retired
But not can get to trees in two ways. First, if your spray droplet size is small because the sprayer was pumped too high and the wind is blowing, it can move to the fruit trees and damage them.
The second way it gets there is the unique volatility that Crossbow has. If the weather is above 75 degrees or will get above that in the 8-10 hours after spraying, I advise people not to spray as the active ingredient in the herbicide can come off the leaves you sprayed it on and move in the wind direction onto to other plants.
Spraying in the evening (assuming no wind) may reduce the volatilization risk but people should not to use Crossbow in home landscapes close to any plants they value and anytime it is hot and/or windy.
Chip Bubl OSU Extension/Columbia County, recently retired
I should have added that Crossbow can get into woody roots and damage trees and shrubs if some of the roots are on the surface and get directly sprayed with Crossbow. Chip
