Index Catalog // ScholarsArchive@OSU

Start Over

Filtering by: Creator Clay, Sharon A. Committee Member Bottomley, Peter Committee Member Loper, Joyce Resource Type Dissertation

Biology, epidemiology, and biological and chemical control of Phytophthora vignae

Creator:

Fernando, W. Gerard Dilantha

Abstract:

Phytophthora vignae, causal agent of stem and root rot of cowpea (Vigna unguiculata), was reported for the first time in Sri Lanka. The pathogen was found in cowpea field soils from 3 of 5 geographic regions sampled. Only one site however, had plants exhibiting disease symptoms. Of the eight cowpea...

Resource Type:

Dissertation

Full Text:

concentrations; Manzate-200DF was effective as a soil drench but not as a foliar spray; Banrot effectively
Biology and control of Fusarium spp. on Douglas-fir (Pseudotsuga menziesii)

Creator:

Hoefnagels, Mariëlle Henriette, 1965-

Abstract:

Fusarium spp. are among the most important pathogens of Douglas-fir (Pseudotsuga menziesii) seedlings in bareroot nurseries. Currently the most effective disease control method is soil fumigation with methyl bromide. As methyl bromide is phased out, however, other disease management strategies may become more important. We explored two alternative approaches to...

Resource Type:

Dissertation

Full Text:

hypotheses: (1) conifer forest soil contains a greater proportion of bacteria antagonistic in vitro to