Neem oil

Can unused Neem oil and water mix be left in the sprayer until next use?

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1 Comment To "Neem oil"

#1 Comment By drtreelove On 06/05/2018 @ 9:32 pm

It’s best to mix only what you will use for immediate applications, then thoroughly rinse and pump clear water through the hose and nozzle. There are different formulations of neem oil; some will coagulate and/or coat and harden on the interior sprayer surface and clog the nozzle.

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