Articles
Two complementary techniques allow detection of Fusarium oxysporum f. sp. radicis-lycopersici in soils from two different tomato-cultivated areas of Chile
Article number
1207_44
Pages
315 – 318
Language
English
Abstract
Fresh tomato is a highly profitable crop in northern and central Chile.
Soil-borne pathogens such as Fusarium oxysporum f. sp. radicis-lycopersici are becoming an increasing threat to the crop.
Methyl bromide was widely used as a soil fumigant in these soils, but its use has not been allowed since December 2014. The detection of F. oxysporum f. sp. radicis-lycopersici in infected soils is important in order to develop alternative control strategies to methyl bromide.
Two analytical methods have been used to detect the presence of tomato-pathogenic isolates of Fusarium oxysporum: classical dilution plate technique and soil phytopathometry.
Both methods were applied to 20 different soil samples, detecting F. oxysporum f. sp. radicis-lycopersici by the dilution technique in 15 of them and by soil phytopathometry in 13 of them.
Complementing the two methods, 84% of samples expressed the pathogen.
This confirms the presence of the forma specialis in the soils of both cropping areas.
Soil-borne pathogens such as Fusarium oxysporum f. sp. radicis-lycopersici are becoming an increasing threat to the crop.
Methyl bromide was widely used as a soil fumigant in these soils, but its use has not been allowed since December 2014. The detection of F. oxysporum f. sp. radicis-lycopersici in infected soils is important in order to develop alternative control strategies to methyl bromide.
Two analytical methods have been used to detect the presence of tomato-pathogenic isolates of Fusarium oxysporum: classical dilution plate technique and soil phytopathometry.
Both methods were applied to 20 different soil samples, detecting F. oxysporum f. sp. radicis-lycopersici by the dilution technique in 15 of them and by soil phytopathometry in 13 of them.
Complementing the two methods, 84% of samples expressed the pathogen.
This confirms the presence of the forma specialis in the soils of both cropping areas.
Publication
Authors
E. Elizondo-Pasten, A. Boix-Ruiz, M.A. Gómez-Tenorio, C. Ruiz-Olmos, J.I. Marín-Guirao, J.C. Tello-Marquina, F. Camacho-Ferre
Keywords
root crown rot, phytopathometry, dilution plate
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