TABLE 32. BROWN PATCH / GRAY LEAF SPOT RATINGS OF ST. AUGUSTINEGRASS CULTIVARS AT GRIFFIN, GA 1/ 2003-06 DATA BROWN PATCH / GRAY LEAF SPOT RATINGS 1-9; 9=NO DISEASE 2/ 3/ NAME SEPTEMBER OCTOBER MEAN DELMAR 9.0 8.7 8.8 MERCEDES 9.0 8.7 8.8 MSA 2-3-98 9.0 8.3 8.7 MSA 31 9.0 7.7 8.3 RALEIGH 8.7 8.0 8.3 FLORATAM 7.7 8.0 7.8 LSD VALUE 2.4 1.7 1.9 C.V. (%) 11.4 8.8 9.4 1/ TO DETERMINE STATISTICAL DIFFERENCES AMONG ENTRIES, SUBTRACT ONE ENTRY'S MEAN FROM ANOTHER ENTRY'S MEAN. STATISTICAL DIFFERENCES OCCUR WHEN THIS VALUE IS LARGER THAN THE CORRESPONDING LSD VALUE (LSD 0.05). 2/ C.V. (COEFFICIENT OF VARIATION) INDICATES THE PERCENT VARIATION OF THE MEAN IN EACH COLUMN. 3/ AGGRESSIVE SPREAD RATED IN 2003 ONLY AND BROWN PATCH / GRAY LEAF SPOT RATED IN 2004 ONLY.