Yates Nature's Way Caterpillar Killer - Dipel

Extremely Effective – My beautiful geraniums and pelargoniums were being eaten by Plume Moth caterpillars, tried manually killing them and numerous other products including neem oil to no avail. Applied this, and within a week I had no new damage and saw numerous mummified caterpillar carcasses on the leaves. This stuff isn't an insecticide and requires the caterpillars to consume it, so you have to follow the directions and apply it thoroughly over the foliage, to the point of run-off.

I used a pressure sprayer with a wand so I could spray the undersides of the leaves where they were, you also need follow-up applications to take care of any unhatched eggs.

Three applications later and I'm finally moth-free, thanks Yates.

And the great thing about this is that it's natural and doesn't affect beneficial insects, only destructive ones that eat the foliage.