I was given a clivia about a year ago and it came down with mealy. My usual houseplant treatment is to spray it thoroughly with leafshine (like a horticultural oil) and treat the soil with Marathon granules.
I almost killed it. The leaves turned funky yellow and brown colors and died off. But one little offshoot lived on, and about six weeks ago I repotted it. It was growing well, but yesterday I noticed a couple of mealies are back again.
What can I use on the mealy?