Meteorus chrysophthalmus

Meteorus chrysophthalmus is a species of parasitic wasp belonging to the order Hymenoptera and the family Braconidae. Often misidentified as a pest due to its interaction with crops, it is, in reality, a beneficial parasitoid that plays an essential role in regulating populations of herbivorous insects.

This species primarily targets larvae of various Lepidoptera, including several types of moths and leaf-rollers that threaten fruit trees and field crops. By parasitizing these caterpillars, the wasp effectively reduces the damage caused by these pests to agricultural production.

The life cycle follows a complete metamorphosis. The female wasp deposits its eggs into the host larva. The larva develops inside the host, feeding on its tissues before emerging to spin a distinctive cocoon, usually suspended from a leaf or branch, where it completes its development into an adult.

From an agricultural standpoint, Meteorus chrysophthalmus acts as a natural biological control agent. By maintaining a healthy population of these wasps in the field, farmers can significantly lower the prevalence of damaging larvae, thereby reducing the dependency on synthetic chemical pesticides.

Management strategies to protect this beneficial insect include:

• Minimizing the use of broad-spectrum insecticides that negatively affect beneficial populations.
• Establishing floral margins or buffer strips to provide nectar sources for adult wasps.
• Maintaining field edges to serve as overwintering habitats for the pupae.