Nutsedge rhizomes growing near potatoes may penetrate tubers. Tubers have brown streaks and what appears
to be a root inside.
Keep garden free of nutsedge. Nutsedge can be controlled if cultivated before plants have five to six
leaves, the stage when they begin to produce tubers. Once tubers form, however, an infestation is extremely
difficult to manage. Tillage is not effective because the tubers can survive up to 4 years in dry soil,
and cultivation will only spread the infestation. The best approach in gardens is to keep removing small
nutsedge plants as soon as you see them. Prior to planting, solarization or the herbicide glyphosate may
reduce nutsedge populations somewhat.
rhizome inside potato tuber