Neoheegeria

Neoheegeria is a genus of insects belonging to the order Thysanoptera and the family Phlaeothripidae. These tiny insects are commonly found in the inflorescences of various plants, where they feed on plant sap. The genus includes several species, with the olive-associated species being the most recognized for causing significant agricultural challenges in specific regions.

This pest prefers a narrow range of hosts, frequently concentrating on oil-producing crops, particularly olive trees. There have also been records of infestations on certain wild plants and ornamental shrubs. The pest most commonly inhabits young shoots and unopened buds, which makes early detection difficult for growers and agronomists.

The biology of Neoheegeria is closely tied to the phenological stages of the host plant. Adult individuals and larvae typically overwinter in bark crevices or under bud scales. With the onset of spring warmth, they become active and begin mass colonization of developing inflorescences. The life cycle involves several larval stages that feed actively, followed by pupation, which often occurs on the plant surface or in the soil.

The primary damage caused by this pest is the destruction of reproductive plant organs. As a result of thrips feeding, buds become deformed, flowers wither, and crop yields are significantly reduced. Affected plants may also show signs of stunted growth, as the insects inject saliva during feeding, which triggers necrotic spots and tissue death.

To protect crops from Neoheegeria, integrated pest management (IPM) strategies are recommended, combining cultural and chemical methods. Regular monitoring using colored sticky traps is a critical component. When the economic threshold of damage is exceeded, the following measures are suggested:

• Application of systemic insecticides during early spring.
• Sanitary pruning and destruction of infested shoots.
• Enhancing plant immunity through balanced mineral nutrition.
• Deployment of biological control agents, such as predatory insects.