"With a light frost in zero to minus two degrees Celsius, the risk is pretty low for damage to canola, but at minus three to minus four, that's when you might start seeing some more significant injury. Especially if the temperature stayed at a low level, you know, at that minus three or minus four for a few hours."
She notes another concern is that we were coming out of some really warm weather high 20s to 30s, and then we saw the temperature drop significantly which could also mean shock might be a problem.
Matt Struthers, a Crops Extension Specialist says it doesn't matter what crop your talking about, it's always important to give it a few days to recover after a frost.
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