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- Title
Control of Ophiobolus patch in Agrostis turf using avirulent fungi and take-all suppressive soils in pot experiments.
- Authors
WONG, P. T. W.; SIVIOUR, T. R.
- Abstract
SUMMARY The incorporation of avirulent fungi such as Gaeumannomyces graminis var. graminis, an avirulent isolate of G. graminis var. tritici, a Phialophora sp. with lobed hyphopodia synonymous with Phialophora radiciola var. radicicola sensu Deacon and P. radicicola var. graminicola at the time of seeding Agrostis turf in pots of sterilised soil completely controlled Ophiobolus patch disease. The addition of a 5 mm layer of take-all suppressive (TAS) soils, artifically developed by the repeated addition of live mycelium of the varieties avenae, tritici and graminis of G. graminis to soil, controlled the disease to a lesser extent. However, a 20 mm layer of a TAS soil developed from live mycelium of G. g. avenae almost completely suppressed the disease. A survey of 66 golf and bowling greens in four states of Australia showed that P. r. graminicola was the most prevalent avirulent fungus.
- Publication
Annals of Applied Biology, 1979, Vol 92, Issue 2, p191
- ISSN
0003-4746
- Publication type
Article
- DOI
10.1111/j.1744-7348.1979.tb03864.x