Shelf Life of Insecticides, Herbicides and Fertilizer

merryaustin(8b San Antonio)June 1, 2011

How long do insecticide, herbicide, and fertilizer concentrates last? I have lots of each - some bought cheap at garage sales. Do they retain potency?

Thank you for reporting this comment. Undo
roselee z8b S.W. Texas

The thing is different chemicals have different life expectancies. Fertilizers tend to lose nitrogen to the air if left open, but the other ingredients remain intact. I've noticed that year old Grass b Gone doesn't seem to be effective, but other weed killers last for years. That's about the extent of my knowledge, but none the less I use lots of old stuff although I don't normally use insecticides and am going mostly organic on fertilizers.

    Bookmark   June 7, 2011 at 12:45AM
Sign Up to comment
More Discussions
Carrie's Snow Pictures from this Morning ...
Carrie lives a little north of Dallas. She says "And...
roselee z8b S.W. Texas
Do you use sprinkler, sprinkler system or soaker hoses?
I used to have a sprinkler system around my foundation...
info about gardening in Dallas?
My daughter just bought a house and has asked for help...
An awesome surprise!
We had made a giant tee pee in the atrium to cover...
ravencajun Zone 8b TX
Big orange tree in fruit ...
I don't know why I've never seen it before, but there...
roselee z8b S.W. Texas
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™