Oak bush-cricket

The Oak bush-cricket (lat. Meconema thalassinum) is a species of insect belonging to the family Tettigoniidae. Although often considered an entomophage, under conditions of high population density or lack of alternative food sources, it can become a minor pest by feeding on the young foliage and tender shoots of various woody plants.

Taxonomically, this species is classified under the order Orthoptera, family Tettigoniidae. The insect is characterized by its bright green coloration, which provides excellent camouflage within tree canopies, and remarkably long, thread-like antennae that are significantly longer than its body length.

The primary damage is inflicted on deciduous trees and shrubs in orchards and urban green spaces. Susceptible plants include oaks, lindens, maples, and various fruit trees such as apples and pears. Both adults and nymphs can feed on leaf margins and damage young, succulent shoots, which may cause stress to the plant and impact its overall vigor.

The biology of Meconema thalassinum is intrinsically linked to tree habitats, where it spends its entire life cycle. Females deposit their eggs directly into the bark or crevices of stems, where they overwinter. Nymphs emerge in the spring and undergo several developmental stages, feeding primarily at night as this species exhibits crepuscular and nocturnal behavior.

To manage the population of the Oak bush-cricket effectively, an integrated approach is recommended. Key strategies include:

• Cleaning tree trunks of loose bark and applying whitewash.
• Encouraging natural predators such as insectivorous birds and predatory insects.
• Using biological insecticides if the damage exceeds acceptable thresholds.
• Implementing sanitary pruning to remove and destroy heavily infested shoots in early spring.