Fangoana cicada

Systematic position and general characteristics. The Fangoana cicada (Cicadetta fangoana) belongs to the order Hemiptera and the family Cicadidae. It is a specialized insect species that can potentially cause damage to woody vegetation, particularly in regions where environmental conditions favor its reproductive cycles.

Affected plant species. This pest primarily targets a variety of deciduous and fruit-bearing trees. Commonly affected species include members of the Rosaceae family, such as apple and pear trees. The insect utilizes these plants for both feeding and as substrate for oviposition, which can impact the vitality of the host tree.

Biology and life cycle. The life cycle consists of egg, nymph, and adult stages. Nymphs typically develop over an extended period, living underground or within bark crevices, feeding on plant sap or roots. Once matured, adult cicadas emerge during the summer months, often becoming conspicuous due to their distinct acoustic signaling and mating activity.

Nature of damage and economic impact. The primary damage occurs during the egg-laying phase. Females use their ovipositors to create deep slits in succulent, young shoots. This physical trauma often results in shoot dieback, stunted growth, and broken branches. Persistent feeding by both adults and nymphs can lead to significant tree stress, making the plants more susceptible to pathogens.

Control and protection strategies. Managing Fangoana cicada requires a combination of cultural and chemical interventions:

• Regular pruning and removal of branches showing signs of oviposition damage.
• Application of systemic insecticides during the peak activity of adult insects.
• Maintaining clean orchard floors to disrupt the nymphal habitat.
• Encouraging natural predators such as birds and parasitic wasps to balance local pest populations.