Pam from Gray, Tn writes
If so, approximately what is the shelf life?
No, it is not recommended that you leave mixed product in your sprayer. This will decrease the effectiveness of the product. A new batch of Hi-Yield 55% Malathion Insecticide Spray should be mixed for each treatment. The shelf life of the unmixed product is 3-5 years.
Answer last updated on: 09/24/2017