Suz, 1st clues, missing leaves and spots of green stuff on the leaves and ground, a little smaller wood pencil eraser. Green stuff ~ tech ~ frass Non-tech catapillar sh-t. Best way to find in day time Get right down on the ground and look up under the leaves and stems. OR go out at night with flashlight should be able to find on leaf edges. You can pick them off, or for a non-toxic pesticide you could use Bt. Yup they will go for your peppers too. Byron Does anyone have tips on how to spot the horned worms? One or more of these fellows wrecked havoc on my tomato plants today, and since the tomato plants are only a foot away from my peppers, I have reason to be concerned. Generally I have been able to find them by following the path of destruction, but these guys are hiding real well. Suz in SoCal, lying in wait, sledge hammer in hand.