Does anybody know of a good remedy against those little green leafhoppers (Hauptidia) that reside at the undersides of leaves? They produce those little with lines at the top of the leaf, the juveniles try to escape sideways when you turn the leaf, the adults are capable of flying short distances and are about 3 mm long. Preferably something organic and environmently friendly. They don't stick to specific plants, I have them on Lilium, Kirengeshoma, Arisaema, Sauromatum etc....
