Gater's whitefly

Systematic position. Aleurocanthus gateri belongs to the order Hemiptera and the family Aleyrodidae. It is a significant agricultural pest known for infesting various evergreen woody plants, particularly in tropical and subtropical environmental conditions.

Host plants. This pest primarily attacks citrus species and other tropical fruit-bearing trees. The insects prefer the abaxial (lower) surface of the leaves, where they establish large colonies to feed on phloem sap throughout their developmental stages.

Biology and life cycle. The life cycle consists of the egg, nymph (several instars), puparium, and adult stages. The nymphs are sessile and protected by a waxy cover, while the adults are mobile and capable of flying, which facilitates the rapid spread of infestations within orchards and nurseries.

Damage and harmfulness. The primary damage is caused by the extraction of plant nutrients, leading to yellowing, leaf chlorosis, and stunted growth. Furthermore, the excretion of honeydew promotes the growth of sooty mold, which prevents light absorption and significantly impacts the overall health and yield of the tree.

• Systemic insecticide treatments during peak infestation periods.
• Application of horticultural mineral oils to smother the nymphs.
• Biological control through the release of predatory wasps or beetles.
• Regular canopy pruning to enhance airflow and light penetration.
• Deployment of yellow sticky traps for population monitoring and detection.