Onion fly
infestations It can be difficult to identify an onion fly infestation because the signs may not always be visible. But there are a few symptoms to watch out for [...] leek, garlic, and onion crops. It is a small fly, measuring between 5 and 7 mm long, with a grayish-yellowish body and clear wings. The eggs are laid by the [...] The soil must be damp, bright sun must be avoided, as well as a lot of wind otherwise the product dries up too quickly. So, spraying late in the afternoon