Mar 11, 2016 - 04:01 PM
It really depends on the thickness of the wood and whether it is real wood or engineered. 1:1 has always been the recommendation on most wood surfaces, and unless there is some reason not to use it (type of wood, very thin, etc) I would recommend 1:1. If you use 2:1, then you are basically cutting the active ingredient in half, which for powder post beetles, may not be adequate. If you prefer to follow the label directions, then that is perfectly acceptable.