My wild grapevine has gotten away from me and has taken over a lilac and a redbud tree. I pulled some down today but if the leaf of these 2 trees are safe to feed it will be much easier to prune everything back and feed it all together a little at a time. I believe I read here a while back in some post that they both are safe foods. Any help will be appreciated. Last fall I removed all the vine from these 2 plants and didn't notice how aggressive the grapevine was growing back over them this spring ,it is an old vine well over a 100 feet long and wanting to grow more.