Damage and symptoms
The attack begins when the fertilized females lay their eggs around the bases of the fruits, just below the calyx of the flower. When the eggs hatch, the larvae immediately bore through the fruit, leaving an entry scar, which is the indication that the fruit has been attacked by the pest. The larvae remain inside the fruit, feeding, and as they approach the pupal stage, they push their way out of the fruit, leaving another scar that allows pathogenic microorganisms to enter the fruit. In Brazil, the tomato fruit borer causes losses of around 45% of the national production, and this figure can be as high as 100% in some regions.