Question: something is eating the leaves on my petunias?
Answer: Foliage-feeding caterpillars -- such as petunia budworms and variegated cutworms -- feed on the leaves and buds of petunias, causing jagged edges or holes in the foliage. If their numbers are high, leaf-eating caterpillars can defoliate entire petunia plants. ... Two to three days after ingestion, the caterpillar dies.