Wingless thrips

The wingless thrips (Apterothrips apteris) is a small insect species within the order Thysanoptera and the family Thripidae. As the name suggests, this species is characterized by the absence of functional wings, which limits its ability to fly but allows it to thrive in stable environments, particularly where specific host plants are abundant.

This pest affects a wide range of host plants, showing a preference for members of the Asteraceae and Rosaceae families. It is frequently observed in greenhouse environments, ornamental gardens, and diverse agricultural fields, where it can colonize both young foliage and floral structures, leading to significant botanical damage.

The biological cycle of Apterothrips apteris is highly efficient in terms of reproduction. Eggs are inserted directly into plant tissues, which protects them from predators and environmental fluctuations. Larvae emerge and immediately begin feeding on plant sap, quickly progressing through developmental stages to become reproductive adults.

Damage to plants is caused by the piercing-sucking mechanism of feeding. Typical symptoms include chlorotic spots, silvery streaks on leaves, and deformed growth of shoots and buds. Severe infestations lead to leaf necrosis and overall stunted development of the plant, which often results in yield losses and reduced aesthetic value in ornamental species.

Effective control requires a combination of cultural and chemical strategies. Cultural practices such as sanitation, weed management, and greenhouse hygiene are essential to limit population growth. When population densities exceed economic thresholds, the application of targeted insecticides, often alternating modes of action, is necessary to prevent the development of pesticide resistance in the thrips population.