DISEASE MANAGEMENT STRATEGIES AGAINST FUSARIUM WILT OF BASIL AND ROCKET BY COMBINING AMENDMENTS AND SOIL SOLARIZATION

This study was carried out by simulating the effect of soil solarization under growth chamber conditions for 7 and 14 days under favorable and less favorable temperature conditions, with or without organic soil amendments (Brassica carinata defatted seed meals and compost) in order to screen different possible combinations for the management of Fusarium oxysporum f. sp. conglutinans and Fusarium oxysporum f. sp. raphani causal agents of Fusarium wilt of rocket and basil.
The soil was amended with B. carinata seed meal and/or compost before starting the thermal treatment, or at the end of thermal treatment at soil uncovering.
The results obtained show that, even when a sub-optimal temperature regime is tested, 7 days of thermal treatment provides significant results in terms of Fusarium wilt control.
The thermal treatment was more effective against F. oxysporum f. sp. basilici than against F. oxysporum f. sp. conglutinans. Disease control is improved with 14 days of treatment at sub-optimal temperatures and with 7 or 14 days of treatment at optimal temperatures.
The incorporation of soil amendments into the soil did not improve, under our experimental conditions, disease control performed by the thermal heating.
The combination of organic amendments with a short period of soil solarization (7 or 14 days) significantly increased the biomass of plants.

VIII International Symposium on Chemical and Non-Chemical Soil and Substrate Disinfestation

G. Gilardi, S. Demarchi, M. Moizio, M.L. Gullino, A. Garibaldi

integrated disease control, biofumigation, soilborne pathogens, Fusarium oxysporum f. sp. basilici, Fusarium oxysporum f. sp. conglutinans

https://doi.org/10.17660/ActaHortic.2014.1044.41