I have been invaded again by white flies. I've tried soapy water and a few commercial insecticides to no avail..they always come back. The undersides of the leaves are covered with a white, powder like stuff...Can anybody give me some other remedies to try..Thanks
Roger Hoke Key Largo Fl...
Quoting:Home-made wash recipe: : blend three large onions, one hot pepper pod or three tablespoons cayenne pepper, one teaspoon vegetable oil, and one garlic bulb. Cover mixture with a little bit of water and let stand overnight. Sieve and put into one-gallon jug and top it off with water. Spray weekly or more often for heavy infestations.
Home-made remedy: Remove leaves with egg patterns. (They'll be sucked dry anyway.) Cut out a piece of yellow or orange cardboard and coat with petroleum jelly or Vicks VapoRub. Stick the coated cardboard into the soil next to the plant. Shake the plant and the flying insects, attracted to the yellow color, will unwittingly "stick" themselves to the cardboard. do this everyday until you no longer see the tiny white fliers flitting around anymore.
I am again growing Confederate Rose (Hibiscus mutabilis). Confederate Rose is typically a whitefly magnet and the last Confederate Rose I grew certainly proved that. It was so infested with whiteflies that they would swarm out in a cloud whenever I shook the bush. I'm trying worm castings to see if they work to keep the whiteflies away from the Confederate Rose. Since I won't be eating the Confederate Rose (as you will with your peppers), I am also using the Bayer dual action systemic fertilizer and insecticide from time to time.