I never gave mealy bugs a thought until about 2 months ago I noticed a few white fuzzy spots on my Philodendron Hope. Then a few weeks the whole window seal was infected with them. It is away from all my other plants, and I got my spray bottle out with a mild solution of Malathion Insect Spray concentrate. Maybe one table spoon to the small spray bottle. I gave it a good soaking in the bath tub and washed down the window seal area. I even sprayed the curtains a little. So far so good. Looks like I got them all. Two weeks and counting. Malathion does smell, That's why I dilute it so much. Doesn't hurt to do the whole thing again next week to be sure.
Tip, I use the same thing a week or so before I bring all my plants in for the winter. That way I don't get no suspires with spiders or so.
