Debbie from Kilgore,tx writes
Monterey Once A Year Insect Control II is an insecticide and not a fungicide, so it does not treat disease directly. This product can help treat and prevent infestations of scale insects which can then lead to other issues and make the tree more vulnerable to disease. You can apply a fungicide such as Fertilome F-Stop to prevent and treat disease on your trees. Be sure that you also remove fallen leaves each fall to prevent overwintering fungal spores.
Answer last updated on: 03/04/2021
