654 Vegetable Transplant Biological Control Amendments

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  • 1 Horticultural Sci. Dept., Univ. of Florida, Immokalee, FL 34142
  • | 2 USDA, Plant Pathology, Auburn Univ., Auburn, Ala.

Bell pepper (Capsicum annuum) seedlings treated with various biological preparations exhibited increased root and shoot growth both in the greenhouse and during subsequent field establishment. Early fruit set and pod development showed signs of possible yield improvement by the treatments, but treatment differences were not apparent at first harvest. Data from subsequent harvests did show yield increases with some preparations. Treatment organisms appeared to activate or induce systemic resistance to bacterial spot (Xanthomonas campestris) infestation though not to the level shown by Actigard (Novartis). Crop/treatment response under soil solarization, fumigation, and compost amended conditions will be discussed.

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