Nezara viridula

Southern green stink bug

Description

Nezara viridula, commonly known as the southern green stink bug, is a highly polyphagous pest believed to originate from East Africa. This species has now spread globally, inhabiting tropical and subtropical regions across all continents. In Europe, its distribution is expanding due to climate change, with increasing sightings even in temperate zones.

The insect attacks over 150 host plant species, including fruit trees, vegetables (e.g., tomatoes, peppers), cereals, and fruits. Adults and nymphs pierce plant tissues with their piercing-sucking mouthparts, feeding on sap from stems, leaves, and fruits. This feeding causes deformation, discoloration, and premature fruit drop, significantly impacting the market value and yield of crops. In addition to direct feeding damage, N. viridula may act as a vector for fungal pathogens.

Symptom

Affected fruits show brown puncture marks, deformation, and discoloration. Premature fruit drop is common, and seeds, particularly in legumes, may become shriveled and malformed.

Tree Species: Peach, Citrus, Pear, Apple Tree, Almond, Walnut, Plum

Part of a plant- attacked: Leaf / Needle, Fruit / Seed, Branch

Pest significance: Less harmful

Pest Category: Insects

Invasive Species: Yes

Present in EU: Yes