I bought two 3 pound bottles to tree my hemlock trees in Fannin County, GA. I recommend that you find a clean container to hold your water and this chemical. Mix thoroughly in it first and then transfer to your sprayer.
Injected Dinotefuran into the coconut palms via a 1/4" hole, 2" deep. (The trees are 9" diameter.) One hole per tree. With a syringe, I filled the hole(s) twice a day for two weeks. The trees sucked up the "medicine". After two weeks, the fronds had stopped dropping. It works !