A New Light Against Crop Disease

Scientists at USDA’s Agricultural Research Service have developed a real‑world “ray gun” that uses UV‑C light to stop powdery mildew and other damaging crop diseases—without chemicals. By applying short bursts of UV‑C at night, researchers found they could kill harmful fungi and pests while keeping strawberry plants healthy, opening the door to a safer, more sustainable way to protect crops. With autonomous UV‑C robots already field‑tested for months, this breakthrough is poised to reach growers nationwide. Click here to learn more.