Author
Fernando Diánez
Bio: Fernando Diánez is an academic researcher from University of Almería. The author has contributed to research in topics: Compost & Fusarium oxysporum. The author has an hindex of 15, co-authored 50 publications receiving 620 citations.
Papers published on a yearly basis
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TL;DR: In this article, the authors compared peracetic acid mix (PAA) and sodium hypochlorite (SH) as disinfectants on vegetables post-harvest and concluded that PAA is better for washing fruit and improving postharvest life as it was better for the environment (due to low toxicity) and for health safety.
81 citations
TL;DR: The response of 36B.
Abstract: The severity of disease caused byBotrytis cinerea in strawberries is very high and chemical control is common practice; low residue levels of chemical products are required. Thus, it is important to be aware of the development of fungicide resistance in order to choose the best strategies of chemical control. In the present study we evaluated the response of 36B. cinerea isolates against eight different fungicides. The isolates were sampled twice, at the beginning and the end of the season, in 11 commercial strawberry fields located in the area of Huelva (Spain). In addition, two reference isolates, SAS56 and SAS405, were evaluated. The proportion of isolates resistant to benomyl was very high (86%). Resistance to dicarboximides was detected in 44% of the isolates and resistance to pyrimethanil in 25% of the isolates. Different degrees of sensitivity to captan and dichlofluanid were recorded. No resistance was found to diethofencarb plus carbendazim.
75 citations
TL;DR: Clove, rose geranium, peppermint and patchouli were the most effective essential oils in the control of important myco‐ and phytopathogens in intensive horticulture.
Abstract: The antifungal properties of 12 Eos, that is, Syzygium aromaticum, Pelargonium graveolens, Lavandula angustifolia, Cupresus sempervirens, Mentha piperita, Santolina chamaecyparissus, Citrus sinensis, Pogostemon patchouli, Thymus mastichina, Thymus vulgaris, Eucalyptus globulus and Rosmarinus officinalis, were screened. The influence of five doses of each EOs was tested against Botrytis cinerea, Sclerotinia sclerotiorum, Fusarium oxysporum, Phytophthora parasitica, Pythium aphanidermatum, Alternaria brassicae, Cladobotryum mycophilum and Trichoderma aggressivum f.sp. europaeum using disc-diffusion method. The mycelial growth inhibition and ED50 were calculated. The chemical analysis of the EOs was analysed using gas chromatography-mass spectroscopy. A total of 58 compounds were identified in the 12 EOs. All essential oils (EOs) analysed showed antifungal activity against the test pathogens in the range of 5·32-100%. The inhibitory effect of oils showed dose-dependent activity on the tested fungus. Based on the ED50 values, clove, rose geranium, peppermint and patchouli were the most effective. This study warrants further research into the practical use of EOs for the control of important myco- and phytopathogens in intensive horticulture. Significance and impact of the study Due to the serious damage caused by fungal pathogens of vegetables and mushrooms, it is necessary to search for integrated strategies of disease control. This study provides relevant information about the effects of 12 essential oils (EOs) against eight pathogens of agricultural interest, included mycopathogens with emphasis on the possible future application of the EOs as alternative antifungal agents.
55 citations
TL;DR: The results obtained with the microfiltered ACT revealed that the microorganisms present in grape marc compost excreted siderophores into the medium which were responsible for inhibiting the growth of the 9 fungi tested, and this inhibition was not 100% after adding FeCl3 due to the fact that this tea, exhibited other biocontrol mechanisms.
Abstract: It is important to know about the mechanisms that suppress plant diseases when compost from vegetable residues and/or their liquid extracts (compost tea) are used in order to improve the efficiency of this suppressing effect on pathogens. In this study, we assessed the presence of siderophores in various grape marc aerated compost teas (ACT) and their suppressing effect on nine pathogens: Rhizoctonia solani, Fusarium oxysporum f. sp. radicis-lycopersici, Fusarium oxysporum f. sp. lycopersici race 0, Fusarium oxysporum f. sp. lycopersici race 1, Fusarium oxysporum f. sp. radicis-cucumerinum, Verticillium dahliae, Pythium aphanidermatum, Phytophthora parasitica and the mycopathogen, Verticillium fungicola. Three concentrations (5, 10 and 15%) filtered, microfiltered and sterilized ACT were added to Petri dishes with a PDA medium, and 1 mM of ferric chloride (FeCy. After adding this mixture, a 0.5 cm disc was placed at the center of each dish containing the vegetative and reproductive body of each of the fun...
48 citations
TL;DR: In this paper, aerated and non-aerated compost teas (NCT) were obtained from four different composts: spent mushroom substrate compost, grape marc compost, greenhouse horticultural crop residues compost, and vermicompost.
Abstract: Compost teas (CT) are fermented watery extracts of composted materials that are used to control plant diseases and on crop fertilization. In this work, aerated (ACT) and non-aerated compost teas (NCT) were obtained from four different composts: spent mushroom substrate compost, grape marc compost, greenhouse horticultural crop residues compost, and vermicompost. Physico-chemical and microbiological analysis were carried out to determine their properties. In vitro assays were performed to assess their suppressive effect on the mycelial growth of eight fungal phytopathogens. In vivo trials aimed to assess their effect on gummy stem blight (Didymella bryonae) and powdery mildew (Podosphaera fusca) in melon plants. Results showed that ACT and NCT filtrates inhibited the in vitro growth of all tested pathogens while autoclaved CT did not completely lose their inhibitory effect, and CT sterilized by microfiltration had no effect on the pathogen growth. The severity of powdery mildew was highly reduced by ACT and NCT from all sources, though in gummy stem blight assay only a delay in disease development was observed. In general, all compost teas showed a high level of microbial populations and nutrients. Results suggest that the efficacy of ACT and NCT firstly depend on the microbiota present in them. We consider compost teas from the four tested sources as a viable way to manage plant diseases and crop fertilization, throughout its integration in pest management programs and fertirrigation systems under different dilution rates.
34 citations
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TL;DR: This review deals with exploitation of some natural products such as flavour compounds, acetic acid, jasmonates, glucosinolates, propolis, fusapyrone and deoxyfusAPyrone, chitosan, essential oils and plant extracts for the management of fungal rotting of fruit and vegetables, thereby prolonging shelf life.
703 citations
TL;DR: In this review the factors, both pre-, post and at harvest that influence sugar content in fruits sold at market are broadly outlined and lines of investigation that may maximise the outcome of current practices and lead, long-term, to enhanced postharvest fruit sugar contents are suggested.
441 citations
TL;DR: Wine production generates huge amounts of waste and companies must invest in new technologies to decrease the impact of agro-industrial residues on the environment and to establish new processes that will provide additional sources of income.
280 citations
TL;DR: The use of grafting as an Integrated pest management tool to manage biotic stress will be most successful when carried out with increasing knowledge about the biology, diversity, and population dynamics of the pathogen or other pests and when complemented with sustainable farming system practices.
257 citations
TL;DR: An approach for improving the quality of composts through the microbial communities already present in the compost is presented, and the mechanisms and mode of action of compost microbial communities for reducing the activity of plant pathogens in agricultural crops are analyzed.
246 citations