Telone/Pic/Vapam<BR>Spring applications = 21 of 22 experiments over 6 years with greater than 90% nutsedge control (less effective in the fall)<BR>Vapam = 4 inches  <BR>Chloropicrin = 8 inches <BR>Telone  = 12 inches<BR>Ideal Placement<BR>Vapam = 4 inches (75 G) <BR>Pic Chlor 60 = 8 inch (21 G)<BR>More Common<BR>LDPE MULCH<BR>