Onion fly
fly ( Delia antiqua ), also referred to as the onion maggot, is a frequent pest that harms allium plants, including leek, garlic, and onion crops. It is [...] concern, but there are a few control strategies that can be used to manage this pest. These include crop rotation, planting resistant varieties, using biocontrol [...] the onion bulbs and make the plant more vulnerable to other diseases and pests. Severely damaged bulbs may turn soft or decay, making them unsuitable for