I have been using the Bayer 3 in 1 for quite awhile in my plant room to kill mealy bugs on my succulents. It has never completely gotten rid of them even when I drenched the soil and sprayed it on them. It sets them back for a while but I usually have to dump the succulents eventually anyway. I really thank
@cycadjungle for the information about the coffee. I went right down and took the coffee grounds out of my coffee maker and mixed up some spray and put grounds down on a plant that I had just noticed mealy bugs on.
I had just been considering getting rid of them because it was a constant struggle to try to deal with the bugs but the coffee idea gives me hope!