Ryan from Meridian, Ms writes
We do not recommend outside of the product label. The manufacturer states to use no more than 1 oz per 1 gallon of water. This product is a residual based product. The residual outdoors is 30 days indoors 90 days. Even if you were to use 4oz, you would still need to reapply per the product label of 30 to 90 days.
Answer last updated on: 05/01/2013