How was the invasive plant the Klamath weed (Hypericum perforatum) controlled in California? A) A…

How was the invasive plant the Klamath weed (Hypericum perforatum) controlled in California? A) A leaf-feeding beetle was introduced to control the weed. B) The weed was killed off with herbicide. C) The weed was killed off by a plant pathogen. D) More cows were released to eat the weed.