CONTROL OF COTTON SEEDLING DAMPING-OFF IN THE FIELD BY BURKHOLDERIA (PSEUDOMONAS) CEPACIA

Four field trials were conducted in April 1995 and 1996 in Arizona to compare the effectiveness of: 1, a soil drench of isolate D1 of Burkho lderia (Pseudomonas) cepacia; 2, isolate D1 barley meal formulation; 3 , Deny seed treatment (a peat moss-based formulation of B. cepacia); 4 , Deny soil drench; 5, Kodiak seed treatment (a formulation of Bacillu s subtilis); 6, a mixture of three fungicides (metalaxyl, triadimenol, and thiram) seed treatment; and 7, a mixture of metalaxyl, triadimeno l, thiram, and Kodiak seed treatment to increase cotton stand in the f ield. Except for D1, the other products are being marketed for the con trol of cotton seedling damping-off. Only D1 soil drench and a mixture of the three fungicides seed treatment increased cotton stand signifi cantly (P less than or equal to 0.05) in three of four field trials.