Bean seed fly
flies lay eggs near the base of bean plants, and upon hatching, the larvae burrow into the soil and feed on the seeds and roots of young plants. Larvae [...] significant damage. Presence of larvae: Small, white maggots near the base of affected bean plants. These larvae are a clear indicator of bean seed fly infestation [...] discolored. Thirdly, search for the presence of larvae. Small, white maggots near the base of affected bean plants are a clear sign of bean seed fly infestation