Yellow Nutsedge Tuber Longevity<BR>Longer as tuber burial depth increases <BR>4 month half-life at 4 inches <BR>6 month half-life at 8 inches <BR>3 consecutive yrs of control reduced tuber density 85% <BR>In SC, 200,000 tubers/ac remained after 4 consecutive yrs of > 90% control in bermudagrass<BR>