Maple whitefly

The Maple whitefly (genus Aleurochiton) belongs to the family Aleyrodidae, order Hemiptera. These small pests specialize primarily on woody species, causing the weakening of foliage and general suppression of the plant’s vitality.

The primary hosts for this pest are various species of maple (Acer). In cases of heavy infestation, the whitefly can significantly reduce the ornamental value of trees in parks, urban green spaces, and nurseries, which makes it a priority subject for plant health professionals.

The biology of Aleurochiton is characterized by a complex life cycle. The pest undergoes the stages of egg, larva (including a distinctive immobile "puparium" stage), nymph, and adult. Insects typically overwinter as last-instar larvae on the bark or within crevices of the host plant's shoots, which ensures high survival rates during winter.

Damage is characterized by the active extraction of cell sap from leaves, leading to the development of chlorotic spots, deformation, and premature leaf drop. Furthermore, the whitefly's feeding activity results in the secretion of honeydew, which promotes the growth of sooty mold, further hindering the plant's photosynthetic capacity.

Control measures involve an integrated approach:

• Regular monitoring of maple stands during the growing season.
• Application of systemic insecticides when infestation thresholds are exceeded.
• Maintaining optimal plant health to enhance the tree's natural immunity.
• Biological control using natural predators, such as predatory bugs and parasitic wasps.