Larry from Yuma, Arizona writes
How long can I keep my Hi-Yield 2,4-d & water mixture in sprayer? Wind picked up after I had already mixed to spay, will the mixture still be usable after sitting in my 4 gal sprayer for a day?
Once Hi-Yield 2, 4-D Selective Weed Killer is mixed with water, it can remain in the tank for up to 24 hours. If it stays in the sprayer longer than that, it looses it's efficacy because the water will break it down eventually. Also, it should not be used if winds exceed 15 mph.
Answer last updated on: 11/09/2016