Gastrozona

Gastrozona is a genus of insects from the family Tephritidae, belonging to the order Diptera. These fruit flies are well-known in entomology as specialized pests, whose larvae develop inside fruit tissues, making them a significant threat to various agricultural crops.

The list of crops damaged by this genus primarily includes plants from the Cucurbitaceae family. They cause the most substantial damage to the fruits of various cucumbers, pumpkins, and other gourd crops, ruining their commercial appeal and making them unsuitable for storage or industrial processing.

The biology of this pest is closely tied to the fruit ripening phase. Adult females deposit eggs under the fruit skin using their ovipositor. The hatched larvae begin boring galleries into the pulp, feeding on plant juices and tissues, which leads to fruit softening and premature decay due to the entry of secondary pathogens.

The damage manifests as dark spots, indentations, and deformities in the fruit shape. Rot foci often develop at the puncture site. The pest causes significant yield losses, as even minor damage renders the produce non-marketable, leading to substantial economic losses for agricultural producers.

Control measures involve a comprehensive approach based on agrotechnical and chemical methods.

• Elimination of infested fruits.
• Application of insecticides during adult activity.
• Deployment of pheromone or sticky color traps for population monitoring.
• Crop rotation.
• Deep soil plowing to destroy overwintering puparia.