The jig color question have already been answered so....
For standing timber, pitch to within about 6 inches of it, let it fall to the base, then shake it once it is down there. Make a couple pitches to each, then move on to the next.
For deadfalls, pitch to the outer parts first, especially where the limbs make a V. When it hits the bottom, wait a few seconds, then shake the jig and begin hopping it out. Make multiple pitches and work your way from the front of the tree to the bank.