REPORT OF THE COTTONSEED TREATMENT COMMITTEE FOR 2002

摘要

The 2002 National Cottonseed Treatment Program evaluated cotton seedling survival for a number of fungicide seed treatmentcombinations over diverse environmental conditions and levels and types of cotton seedling pathogens. Twelve fungicideseed treatments were nominated by chemical industry representatives for evaluation in the 2002 National CottonseedTreatment Program. A standard fungicide treatment, Vitavax-PCNB + Allegiance, and a nontreated control were included toassess efficacy of the nominations and seedling disease pressure. In addition, the fungicide treatments Allegiance or PCNBwere included to aid in determining the importance of Pythium spp. or Rhizoctonia solani, respectively. Disease ratings andpathogen isolations for seedlings and soil populations of selected soilborne fungi were conducted by collecting seedlings andsoil from the nontreated control plots at each location. Soil temperature and plant development data also were collected forsites for the 2002 National Cottonseed Treatment Program.