Anastrepha pickeli

Systematic position: Anastrepha pickeli belongs to the order Diptera and the family Tephritidae. It is a specialized pest within the genus Anastrepha, which is widely recognized for its impact on fruit and crop production in the Neotropical region.

Host crops: The primary host for this insect is cassava (Manihot esculenta). Unlike many other Anastrepha species that attack fruits, this specific pest focuses its activity on the vegetative parts of the plant, specifically the apical shoots of cassava.

Biology and life cycle: The life cycle comprises four stages: egg, larva, pupa, and adult. The adult female oviposits into the soft tissues of the apical buds. The developing larvae feed internally within the stem, burrowing into the tissue, which protects them from environmental factors and predators but causes internal necrosis.

Character of damage: Infestation leads to the death of the apical meristem, resulting in the cessation of primary shoot growth. The plant often responds by producing multiple lateral branches, leading to a "witches' broom" appearance. This structural deformation significantly impairs the plant's physiological development and reduces yield.

Control measures: Management strategies focus on sanitation and physical removal of infested shoot tips. Biological control agents, such as parasitoids, play a crucial role in suppressing populations in natural settings. Implementing strict quarantine measures for planting materials is essential to prevent the spread of the pest to new agricultural areas.