ISHS Acta Horticulturae 216: III International Symposium on Carnation Culture
CONTROL OF FUSARIUM OXYSPORUM AND PHIALOPHORA CINERESCENS ON CARNATION BY COMBINED SOIL TREATMENT AND APPLICATION OF ANTAGONISTS |
| Author: | G. Arbeláez |
| Abstract:
Vascular diseases caused by Fusarium oxysporum f. sp. dianthi and Phialophora cinerescens are economically important in carnation greenhouses at the Bogota Plateau. These pathogens were introduced from different countries through infected propagative material and their incidence has quickly increased due to a high dissemination rate, soil persistence and low efficiency and high costs of the control measures used. Three experiments in different farms using a combination of steam, several fumigants, the systemic fungicide Benomyl and the application of some isolates of Trichoderma harzianum, Pseudomonas putida and Serratia liquefaciens were set to evaluate control of vascular diseases from 1983 to 1986. Flower yield was also measured. The application of Metham-sodium plus steam before planting and steam alone caused the lowest mortality of plants and the highest flower yield. The use of antagonists in the soil did not control satisfactorily the diseases. Benomyl showed a low efficiency for control. | |
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