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Principles of plant health management for ornamental plants.
Continual introduction of new crops and new production technologies creates new opportunities for pathogens to exploit, such that new disease management tactics must be discovered and old ones rediscovered to achieve optimum health management for ornamentals. Expand
Suppression of Rhizoctonia solani on Impatiens by Enhanced Microbial Activity in Composted Swine Waste-Amended Potting Mixes.
It is suggested that enhanced microbial activity, functional and population diversity of stable compost-amended mix were associated with suppressiveness to Rhizoctonia damping-off in impatiens. Expand
Identification, Mefenoxam Sensitivity, and Compatibility Type of Phytophthora spp. Attacking Floriculture Crops in North Carolina.
Mating type and mefenoxam sensitivity were uniform among isolates of P. nicotianae and P. palmivora from a given crop at a given location, suggesting that epidemics within a location may have originated from a single source of inoculum. Expand
Pyrrolnitrin and phenazine production by Pseudomonas cepacia, strain 5.5B, a biocontrol agent of Rhizoctonia solani
A purple pigment consistently produced in culture by strain 5.5B was isolated and identified as 4,9-dihydroxyphenazine-1,6-dicarboxylic acid dimethyl ester, a phenazine; in vitro inhibition of R. solani occurred with the phenazine. Expand
Phytophthora Blight and Dieback in North Carolina Nurseries During a 2003 Survey.
Most cultivars of rhododendron surveyed, including 'English Roseum,' 'Nova Zembla,' and 'Roseum Elegans,' had less than 0.5% incidence of Phytophthora blight and dieback, whereas 'Lee's Dark Purple' had 3.8% disease incidence across all nurseries surveyed. Expand
Diseases of Woody Ornamentals and Trees in Nurseries
Pyrrolnitrin production by Burkholderia cepacia and biocontrol of Rhizoctonia stem rot of poinsettia
Improvement in biocontrol efficacy may be possible by adjusting culture conditions to optimize pyrrolnitrin production, according to Burkholderia cepacia strain 5.5B. Expand
Expression of induced systemic resistance in poinsettia cuttings against Rhizoctonia stem rot by treatment of stock plants with binucleate Rhizoctonia
These results may be the first to demonstrate induced systemic resistance by BNR fungi during vegetation propagation where the biocontrol agent applied to roots of a stock plant was able to protect cuttings from Rhizoctonia solani during propagation. Expand
Influence of pine bark, matric potential, and pH on sporangium production by Phytophthora cinnamomi
- D. Benson