The things to avoid are warm temperatures and light. Store it cool and dark
between uses, and it should remain active for quite a while.

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Ray Barkalow - First Rays Orchids - www.firstrays.com
Plants, Supplies, Books, Artwork, and Lots of Free Info!

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"Dewitt" wrote in message
...
I'd like to keep a spray bottle of neem oil solution mixed and ready
for spot treatment, but don't know how long it was stay effective.
Any thoughts? Would it start to smell better when it went bad? :-)

deg