Black Leg


Warm seed tubers to about 55°F before planting. Provide good drainage and do not over water. Use proper sanitation methods when working with your plants.


Disease is from a contaminated seeds, but the symptoms will show at several stages of plant growth. In severe cases, all of that seed planted may have developing sprouts that rot in the ground prior to emergence, resulting in a poor or no germination. It also can develop after plants are well up or even in flower. In this case, stem bases of diseased plants typically show an inky black to light brown decay/rot that started from the seeds and can extend up the stem from less than an inch to more than two feet. Leaves of infected plants tend to roll upward at the margins, become yellow, wilt, and often die