Tuta absoluta doesn't get as much attention as some of the headline pests, but tomato growers in affected regions know exactly how destructive it can be. Originally from South America, it made its way into Europe through Spain around 2006, and within a decade it had spread across the Mediterranean, sub-Saharan Africa, and parts of Asia. In some unprotected greenhouses, yield losses can hit 80–100%.
The larvae are the real problem. They mine directly into leaves, stems, and fruit — which not only destroys the crop but makes chemical control difficult because the insect is physically protected inside the plant tissue. This has pushed a lot of growers and IPM programs toward pheromone-based solutions.
Mass trapping and mating disruption are both used, depending on infestation pressure and crop type. For early-season monitoring, delta or funnel traps baited with the primary pheromone component work well to track adult male populations. Some programs use this data to time other interventions rather than relying on calendar-based spraying.
The active compounds are well-characterized and commercially available. Supply has become more reliable as demand has grown, particularly out of Europe and North Africa.