Tap Trees Terminated
At Lackland Air Force Base, where thousands of dogs have been trained to find explosives or drugs, JND means "Just Noticeable Difference." Dogs are taught not to locate on slight peripheral scent, but to investigate more thoroughly until they find the actual object emitting the JND. Jim Dobbs, at Dobbs Training Center in Marysville, Calif., quickly recognized that JND training was precisely what young coonhounds needed to help them differentiate between tap trees and the tree the coon is really up. Drawing from the Air Force example, Dobbs recommends finding a group of trees that are close together and scenting the tree with a caged coon much more heavily than the rest. Then let the young hound repeatedly work out the problem for himself-it will go a long way toward eliminating lockup on tap trees.