Abstract: A spraying apparatus including an agricultural sprayer and a mounting bracket for affixing the sprayer to the trunk or limb of a tree or bush is disclosed. The mounting bracket is easily adjustable as to height, to radial position about the tree or bush, and to angle between the sprayer and the trunk or limb. This mounting bracket has a base for interfacing with the tree or bush and a connector for adjustably connecting the base with a fastener that encircles the trunk or limb, thus providing height and radial adjustment. The bracket further has a support member that supports the sprayer in spaced relation to the trunk or limb. The support member is capable of assuming a plurality of orientations, thus providing the angular adjustment. A method for spraying trees and bushes is further provided that entails the use of the spraying apparatus, determining a preferred position and orientation of the sprayer, and affixing the sprayer in that position on the tree or bush.