Board Thread:Versus Debates/@comment-26104757-20160502112031/@comment-7292165-20160503035539

Yes that genjutsu she used (Tree Binding Death) wouldn't work against him. Not all her genjutsu period. We never got to see the full extent of Kurenai's abilities. But Itachi did complement Kurenai on quickly breaking out her reflected genjutsu too.