Personally I use aact's for pretty much anything, but there are a ton of pm resolvers out there, I just dont wanna give ya a name when I havent personally used it. Neem oil in conjunction with organic insecticide soap I know treats damn near everything as well as pm but I am not sure how well it will treat yours considering its larger then ive treated with neem, but would take care of the bug issue, you would want to spray the entire plant underside and tops thouroughly, I know I have heard of people using milk, baking soda, vinegar things like that as well, i dont know recipes though so you would have to do a google search or hope someone posts one up for the specifics.