Fruit flies lay their eggs close to the surfaces of the fruits that they are attracted to. Since fruit flies prefer warm, moist heat, the fruit that you leave on your counter rather than in the refrigerator, like unpeeled bananas and melons, is the most susceptible to fruit fly. Believe it or not, pesticides might be present in fruits and vegetables we eat. According to the CSE, washing them with 2% of salt water will remove most of the Peeling is another efficient way to remove residue and comes highly Best New Places to Visit in Australia Tourism Australia | Travel + Leisure. Which of the following is the best way to wash your fruits and vegetable? "Bananas I wash as soon as I bring them home. People get fruit.