How do I control fruit fly in late-ripening Chausa mango during the rains?

Late monsoon ripening makes Chausa very prone to fruit fly because warm humid weather peaks fly activity. The core method is trapping plus sanitation, not heavy spraying near harvest. Install methyl eugenol pheromone traps (about a few per acre) from before colour break to mass-trap males. Critically, collect and destroy all fallen and infested fruit daily by deep burying or solar bagging, because larvae pupate in soil and restart the cycle; this single step makes the biggest difference. Bagging individual fruit with paper bags before they soften gives clean export-grade fruit. If a cover spray is justified, use only recommended bait sprays or insecticides at label dose and strictly observe the pre-harvest interval, since this fruit is eaten fresh; never spray close to picking. For export, fly-free area and hot water or VHT treatment may be required.