This flowering plant has dark green vines and leaves that vary in size and shape — though it’s best known for its tuberous roots, which have been used in folk medicine since the 18th century to treat ...

Yam, a staple food in many African countries, is under threat from a destructive fungus. Scientist Adjata Kamara has found a way to fight yam rot and boost food security. Skip next section Similar ...

When spring and summer rains combine with heat and humidity, we can expect the resurgence of warm-season turf diseases. One disease that is always present but really makes itself known in our ...