Onion fly
antiqua ), also referred to as the onion maggot, is a frequent pest that harms allium plants, including leek, garlic, and onion crops. It is a small fly [...] onion fly larvae that emerge from the eggs tunnel into the onion bulbs, harming the roots and foliage. This leads to retarded growth, decreased yield, or [...] yield reduction or even death of the onion plant. The roots and leaves are harmed when the onion fly larvae tunnel into the onion bulbs. This damage may decrease