Green pug moth

Systematic position. The green pug moth (Chloroclystis laticostata) belongs to the order Lepidoptera and the family Geometridae. As a specialized pest, it is primarily recognized for its larval stage, which impacts various deciduous trees and shrub species in agricultural and garden environments.

Host plants. This species predominantly attacks members of the Rosaceae family. Its main hosts include apple (Malus) and pear (Pyrus) trees, as well as several species of currants and gooseberries. The larvae target the developing green tissues of these plants during the early spring growth period.

Biology and life cycle. The pest undergoes complete metamorphosis. It overwinters as a pupa, typically located in the soil or protected crevices near host plants. Upon the arrival of spring, adults emerge and oviposit near the buds. Larval development is rapid, synchronized with the opening of buds and the emergence of fresh foliage.

Damage and economic significance. Larvae cause significant damage by feeding on expanding buds and young leaves. This activity can lead to the destruction of floral primordia, directly reducing yield. In severe infestations, the larvae may skeletonize leaves or consume them entirely, creating webbed structures that weaken the overall vitality of the host tree.

Control measures. Integrated pest management (IPM) is essential for controlling this moth. Recommended practices include:

• Tilling the soil beneath host plants to disturb pupation sites.
• Monitoring adult flights using pheromone or light traps.
• Applying targeted insecticides during the bud burst stage if population thresholds are exceeded.
• Encouraging natural predators such as birds and parasitic wasps in the orchard environment.