Bean seed fly
crucifers, cereals and tubers worldwide. Adult flies lay eggs near the base of bean plants, and upon hatching, the larvae burrow into the soil and feed on the [...] the seeds and roots of young plants. Larvae mainly attack seedlings by feeding on emerged roots and cotyledons. Plants that survive are weak and less tolerant [...] compared to healthy young seedlings. Secondly, inspect the seeds for damage. Look for darkened or damaged seeds, as bean seed fly larvae feed on seeds