be barking up the wrong tree

be barking up the wrong tree

  (informal)
to be wrong about the reason for something or the way to achieve something New evidence suggests that we have been barking up the wrong tree in our search for a cure.
See also: bark, tree, up, wrong
References in periodicals archive ?
THERE are sure to be some shocks in the FA Cup first round but ESPN might be barking up the wrong tree by fixing the cameras on today's clash between Blue Square Bet Premier strugglers Newport and League Two highflyers Shrewsbury.
LEICESTER manager Martin O'Neill is tracking Swedish star Lars Gunnar Carlstrand but he could be barking up the wrong tree.
Conservationists who seek to preserve the North American red wolf as a unique species may be barking up the wrong tree.