Efficacy of Peanut Seed Treatments for Organic Management in Georgia

• DOI: 10.3146/ps13-12.1
• Publication Date: 2013-11-21T15:04:34Z
• Authors: R. S. Tubbs; E. G. Cantonwine; T. B. Brenneman
• Keywords: Aspergillus niger; Copper sulfate

ABSTRACT One of the most critical and influential factors determining ultimate crop success is plant stand establishment. Because synthetic seed treatments are not allowed in organic production systems, alternatives needed to assist resistance pathogens during germination seedling growth. Several biological control materials were evaluated laboratory assays field trials determine their potential for minimizing disease impact maximizing yield peanut production. These included Bacillus subtilis several application methods copper sulfate. demonstrated excellent Aspergillus laboratory, but this was confirmed field. Copper sulfate had no benefit against Aspergillus, some activity Rhizopus laboratory. When applied dry seed, improved stands reduced postemergence mortality (damping-off) compared either B. or untreated seed. combination with cola as a sticking agent, did an job damping-off, caused delayed emergence all other treatments. there evidence direct toxicity A. niger by lab assay, effect may be result enhanced host crown rot, on another pathogen.