Evaluation of Soil Solarization Singly or in Combination with Fungal or Bacterial Biocontrol Agents to Control Fusarium Wilt of Carnation
Fusarium wilt of carnation incited by Fusarium oxysporum f. sp. dianthi causes serious problems wherever carnations are cultivated for several years in Greece. Soil fumigants and steaming constitute the current approach in controlling the disease but fast soil reinfection can not be avoided. Although wilt tolerant cultivars have been developed, they have not been widely accepted by the growers worldwide (Yuen et al., 1985). Biological control has shown promise against the pathogen with the use of nonpathogenic Fusarium oxysporum, Bacillus subtilis and a resistance-inducing Pseudomonas isolate (Filippi et al., 1987; Garibaldi et al., 1990; Van Peer et al., 1990). High cost of soil fumigation is a limiting factor for outdoor plantations. Thus, evaluation of field application of soil solarization singly or in combination with other biological or chemical factors under local conditions was attempted in Greece. Soil solarization has shown to be effective against several soilborne pathogens and especially against physiological races of F. oxysporum (Martyn and Harz, 1986; Tjamos and Makrynakis, 1990).
KeywordsSteam Polyethylene Bacillus Pseudomonas Fusarium
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