Flexzion Food Cover Tent - Pop Up Mesh Screen Net Umbrella Covers Keep Out Flies, Bugs, Mosquitoes, Perfect for Outdoor Picnic, BBQ, Camping, Fruit Dinner Protection, Reusable & Collapsible - 6 Pack

Something like this is the easiest solution: https://www.apartmenttherapy.com/how-to-make-a-fruit-fly-trap-h-108577 It will only be effective if you eliminate the fruit fly food source. In the future, keep your fruit under a screen like this: https://www.amazon.com/Flexzion-Food-Cover-Tent-Collapsible/dp/B07TJXLS95?th=1