The two pieces of evidence that support the connection that large blue caterpillars do not pose a significant threat to the oregano plant are:
- "Large Blue caterpillars only gain 1 to 2 percent of their body weight by nibbling on the oregano leaves during the early stages of life."
- "The overwhelming majority of their sustenance—98 to 99 percent—comes from eating ants."
These statements indicate that the caterpillars rely primarily on ants for nourishment and only lightly feed on oregano, suggesting a minimal impact on the oregano plant.