Unfortunately, Spinosad is generally not effective for control of sucking insects such as aphids, whiteflies, most thrips, scale, mites or true bugs (stink bugs, spittle bugs, mealy bugs, lygus bugs, harlequin bugs, cabbage bugs, cicadas, leaf hoppers, tree hoppers, blue sharpshooters, etc.).

Does spinosad kill whitefly?

Spinosad-based Treatment

If you find that either or a combination of both of these two methods do not appear to be sufficient to eradicate your whitefly population, you may wish to graduate to treatment with a product containing Spinosad. Use care when using this insecticide.

What insecticide kills whiteflies?

Imidacloprid. Imidacloprid is one of the most effective systemic whitefly insecticides. When applied as a soil drench, it can drastically reduce the insect and larvae population within a matter of weeks.