ABSTRACT

The seedling disease complex is composed of several fungi which cause serious problems in cotton production wherever cotton is grown. Cotton seedling disease fungicide tests were conducted under high and low disease pressure in north and central Alabama to determine efficacy and economic feasibility. Treatments consisted of all recommenced in-furrow spray and granule fungicides and one seed treatment. Significant differences in cotton stand were observed at high and low disease incidence tests at all locations. Seed cotton yields were increased over the control in 55 and 11% of the fungicide treatments under high and low disease pressure, respectively. An economic analysis indicates that the majority of the fungicide treatments had positive net returns above the direct cost of the materials under high disease pressure.