When Does Weed Killer Expire?
Answer: Insecticides and Herbicides Do Not Have an Expiration Date. Most All Insecticides and Herbicides Are Made to Last for Year's and Year's on the Shelf...
Answer: Insecticides and Herbicides do not have an expiration date. Most all insecticides and herbicides are made to last for years and years on the shelf. Most all will last at least 5 years as long as you keep the lid on tight and keep it out of direct sunlight and areas of high heat.
How long does weed killer keep?
Safe Storage
Always store herbicides in their original containers and never mix products. Don't stack the containers. Mark the containers clearly with the date. As a general rule, most herbicides retain their effectiveness for five years, when stored properly.
Does liquid weed killer go bad?
It can but it's usually more like 4-8 years.