If you find mealy bugs on the coleus or other plants, dab them with a q-tip dipped in alcohol. They die instantly. I keep a bottle of alcohol and q-tips near the coleus plants so I don’t need to run indoors for some.
Name: Becky (Boo) Phoenix, AZ 85022 finding joy one day at a time!
I can't figure out why (in Arizona anyway) aphids want to gobble up my coleus. Is it because it's dry? I have a lot of coleus in containers in doors and they are never bothered. But outside, well, lets say I fight the aphid war every day with my q-tip!
This works great! Boo, my indoor ones are fine, and the outdoor and Greenhouse plants have aphids, mealy bugs, and every other insect known to man. What I hate is when the mealy bugs get into my cactus or my Portulacaria afra. It's nearly impossible to touch each one with alcohol.