uprooted plant with infected root knot nematodes.

plantparasitic agriculture environment underground meloidogyne background vegetable parasitic unhealthy fungicide undefined uprooted nematode swelling parasite juvenile rootknot disorder cucumber closeup disease problem destroy farming garden nature stubby damage growth lesion attack botany severe invade infect little nodule yellow issues plant galls fungi worms mealy spots root knot soil pest loss gall crop cyst bean wild tree pea