
Keen vegetable gardeners are never quite done tackling pests. There are likely plenty of pests you haven't heard of until you come face-to-face with the damage they cause, like bean seed flies. These are flies whose larvae feed primarily on bean plants, but also target other crops like brassicas, cucurbits, and lettuce.
In a kitchen garden, bean seed flies tend to attack in the early germination stage of crops. More specifically, their larvae feed on roots and seeds of crops, so not many seedlings survive in their presence.