What are the damage symptoms of fruit fly in tomato and how it can be controlled?

The maggots (larvae) after hatching feed on pulp of the fruits and render them unfit for human consumption. It can be controlled by field sanitation i.e., removal and destruction of dropped fruits and infested fruits daily to minimize the pest intensity. Use of pheromone traps (Palam trap @ 25/ha) for monitoring pest population. Application of malathion (0.05%) cover spray which kill the insects on contact or a bait spray that attracts and kill the adults. Bait spray is prepared by adding 50 g gur + 10 ml malathion in 10 L water.