Where To Find Caterpillars
Look for caterpillars on the underside of leaves of their host plants out of the way of predators. Some will hide during the day in shelters of leaves and grass and only feed at night.
They are fascinating to watch as they feed on their host plant. Even though there may not be much left of the plant by the time they leave, they usually do not do permanent damage to the plant.
To maintain the beauty of your garden, you can plant the host plants off to the side.