Common green lacewing

Chrysopa plorabunda (often identified within the Chrysoperla carnea complex) is a member of the order Neuroptera, family Chrysopidae. While primarily recognized as a beneficial predator, it is frequently documented in agronomy as an organism that requires careful management within integrated pest management systems.

The insect can influence crop health through its feeding habits. While the larvae are significant predators, the adults feed on honeydew secreted by aphids. This interaction can sometimes promote the growth of sooty mold on the foliage of crops such as citrus, grapes, and various vegetable species.

Its biological cycle consists of four stages: egg, larva, pupa, and adult. Hibernation occurs during the adult stage, often in secluded places or debris. After overwintering, they migrate to agricultural fields, where they lay their eggs on long, slender stalks to protect them from cannibalism by their own larvae.

Larvae are colloquially known as "aphid lions" due to their voracious appetite. They utilize mandibles to suck the hemolymph from their prey. Their presence is generally a sign of a healthy ecosystem, but in high-density greenhouse environments, they may require management to ensure they do not interfere with delicate plant tissues.

Recommended protection and management strategies:

• Minimize the use of broad-spectrum insecticides that harm beneficial populations.
• Implement integrated pest management (IPM) to maintain natural balance.
• Preserve hedgerows and wildflower borders to provide natural habitats.
• Conduct regular field scouting to assess population levels and activity.