Journal
PHYTOPATHOLOGY
Volume 91, Issue 11, Pages 1116-1123Publisher
AMER PHYTOPATHOLOGICAL SOC
DOI: 10.1094/PHYTO.2001.91.11.1116
Keywords
Euphorbia pulcherrima; natural suppression; organic amendment; organic matter decomposition; Raphanus sativas; Rhizoctonia solani
Categories
Ask authors/readers for more resources
Potting mixes prepared with dark, highly decomposed Sphagnum peat, with light, less decomposed Sphagnum peat, or with composted pine bark, all three of which were colonized by indigenous microorganisms, failed to; consistently suppress Rhizoctonia damping-off of radish or Rhizoctonia crown and root rot of poinsettia. Inoculation of these mixes with Chryseobacterium gleum (C299R2) and Trichoderma hamatum 382 (T-382) significantly reduced the severity of both diseases in the composted pine bark mix in which both biocontrol agents maintained high populations over 90 days. These microorganisms were less. effective against damping-off in the light and dark peat mixes, respectively, in which populations of C299R2 declined. In contrast, crown and root rot, a disease that is severe late in the crop, was suppressed in all three types of mixes. High populations of T-382 in all three mixes late during the cropping cycle may have contributed to control of this disease.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available