Researchers discovered that waste from shrimp processing can be converted into a natural fungicide that effectively kills plant-damaging fungi and mold. When applied to oranges, lemons, and apples artificially infected with mold, the shrimp waste extract significantly reduced rot and fruit damage. This finding is important because it offers a more environmentally friendly alternative to chemical fungicides while helping reduce the massive amounts of shrimp processing waste that typically end up in landfills or oceans.