Simply kill olive fruit flies with Olive Fruit Fly Pheromone Bait by Hawaii Fly Bait Brand. This bait works best above 78°F. Bait can be used for groves below 78°F by creating a pedestal bait station and monitoring temperatures with IR non-contact thermometer (such as Klein Tools IR5). Bait must be warmed above 78°F for at least 4 to 6 hours per day. Find instructions at www.olivefruitfly.com.