Forcing a Blighted tree model?

Is there any way I can force a certain type of tree in a region to only use the blighted variant of it?

In the editor, the trees are blighted, but in game, some of them aren't. I'd like to fix this problem.

You can trigger a blighted spot in the location of those rebel destructibles, forcing them to become blighted.

Found the tree model in the MPQ.

Thanks for the help moyack!