Resumen

VASQUEZ COVARRUBIAS, Daniel Antonio; MONTES BELMONT, Roberto; JIMENEZ PEREZ, Alfredo  y  FLORES MOCTEZUMA, Hilda Elizabet. Essential Oils and Aqueous Extracts for the in vitro Management of Fusarium oxysporum f. sp. lycopersici and F. solani. Rev. mex. fitopatol [online]. 2013, vol.31, n.2, pp.170-179. ISSN 2007-8080.

The use of synthetic pesticides favors the appearance of resistant pathogens and pest; therefore, new products are needed for disease management. The use of essential oils (EO) and aqueous extracts (AE) are an alternative option. In this work, different concentrations of EO and AE of five Chenopodiaceae species were evaluated on micelial growth and spore production of Fusarium oxysporum f. sp. lycopersici (FOL) and F. solani. It was found that there is a differential response between races 2 and 3 of FOL and even among isolates of the same race. EO of Chenopodium album [0.3 %] and C. ambrosioides [2 %] inhibited micelial growth and spore production on both Fusarium species. Of the EA tested, Beta vulgaris exercised the greatest reduction in mycelial growth (38 %) and sporulation (61 %). The EA 5 %, of the five species tested showed a stimulation by 27 to 183 % in mycelial growth on the four strains used. At 10 %, Beta vulgaris, C. album, C. berlandieri subsp. nuttalliae and C. graveolens reduced between 11 and 38 % growth of F. solani and FOL race 2 (isolate Yautepec) compared with the control.

Palabras llave : Antifungal plants; Chenopodiaceae; american wormseed; lamb's quarters; beet.

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