I have a white fly infestation on Helleborus. Is there any natural control (Rodale recommends tobacco tea) — anything less labor intensive?
According to The Organic Gardener’s Handbook of Natural Insect and Disease Control, edited by Barbara Ellis (Rodale Press, 1996), whitefly can be controlled in the following ways:
– Catch adults on yellow sticky traps.
– Vacuum adults from leaves.
– Attract parasitic wasps and predatory beetles.
– Spray with insecticidal soap, kinoprene (Enstar) or garlic oil.
– Last resort: spray with pyrethrin.