What is causing the leaves on my beet plants to turn bown? About half the leaves on my beet plants, which are only about 4 inches high so far, are turning yellowish or (mostly) brown. Only a portion of each leaf is changing color, about half of each leaf is still green and healthy looking. Can't see any bugs or mildew.
Only about 1/2 the leaves are affected. The other half look a healthy green. The leaves that are affected have about 1/2 the leaf looking healthy, the other half turning brown, and as the leaves age, the affected part of the leaf seems to rot.