Citrus leafminer trap and lure traps are a useful tool for determining when moths are flying and depositing eggs. Use at least one pheromone trap per 5 acres. Check the traps weekly for moths. Citrus leafminer moths may be captured in traps almost any time during the growing season. However, this species is most abundant when citrus is flushing in the summer and fall months. That is when to apply insecticide for best results. Each pack contains two traps and two lures.