The Butterflies You Established in Your Yard Are Now Thriving

The butterflies you established in your yard are now thriving, but you notice that some of the caterpillars are falling victim to predators and parasites. After some study and consultation, you wisely decide to .

A) plant more host plants in several different areas but otherwise do nothing
B) give up on the butterfly species you'd encouraged and try to attract new species.
C) spray pesticides on the plants to control the predators
D) catch and kill the predators and parasites by hand
E) resume spraying pesticides on the lawn