Just an old head, but some thoughts, usually I think of centipede as being one of the good guys(at least the enemy of my enemy thing). Just a quess but maybe it was after a grazzer(cut worm or the like) as these sobs work chewing on the stem, it allows the top to wither. Which disrupts the way the plant moves water. If you still have a solid connection between the root and a growth node, you may have a chance.