My Bayer Lawn Weed Killer concentrate froze this past winter while stored im
my shed. The label says do not allow it to freeze. Was it weed killing
capabilities compromised because it did freeze?
It is usual in the UK to have a tel. no. on each container for advice and
help. Designed for emergencies but they would be able to advise. I would not
have thought that freezing would have changed its properties.
Best Wishes. Brian
I am inclined to agree that freezing is not likely to alter the chemical
properties. If the mix is an emusion it may destabilise it into its
components - which would be why the warning is on the tin. Check the
contents for consistency. Has it separated into layers or floating globules
or lumps? If so you may be able to restore it by letting it warm up in the
sun and then shaking hard. If it has lumps then don't spray it as it may
clog your sprayer, if not give it a try as the worst that can happen is it
In the spring of 2001 I purchased a gallon of Round-up and have had it
stored in my garage ever since. It has frozen several times and is still
effective. I used the same gallon last week on some weeds and they are
slowly dying. I didn't expect the product to be any good after having
frozen and thawed in the garage so many times.
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