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Q.I want to check on best used by dates, best shelf life, temperature concerns for storage

Zone 40223 | Anonymous added on March 18, 2020 | Answered

I have many containers of fungicides, insecticides and fertilizers, both liquid and granules. I store them during the winter in a garage that does not get colder than freezing when it is 0 outside. I want to know how effective the chemicals I have are. A rose friend told me to discard liquid chemicals that were left on my back porch last December but that the granular products should be OK. Thanks for any advice.

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Certified GKH Gardening Expert
Answered on March 19, 2020
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