Plant extracts of the capsicum genus with potential antifungal activity against Rhizoctonia solani and Sclerotium rolfsii
DOI:
https://doi.org/10.6008/CBPC2179-6858.2020.001.0010Keywords:
Alternative control, Phytopathogens, Fungal diseasesAbstract
The excessive use of fungicides in agriculture has been widely questioned by society at large in functions considered expensive, of high soil persistence and of high risk to human health and the environment. In this sense, alternative control measures were sought. This study aimed to evaluate the efficiency of different Capsicum pepper seed extracts on the mycelial growth of Rhizoctonia solani and Sclerotium rolfsii. The experimental design was randomly isolated with 25 controls, with two controls (water and fungicide) and four replicates for in vitro and six for in vivo tests. Data were analyzed by Scott Knott with a 5% probability. In vitro tests showed that all extracts are effective in inhibiting pathogens, especially Capsicum annuum extracts, which are the results obtained superior to the controls with fungicide. In serial dilution assays, the concentration is reduced to 1x10 5 extracts were able to inhibit the pathogen S. rolfsii. No in vivo assay on detached leaves, 13 extracts reduced the control of the molasses, and the extracts were captured from Capsicum baccatum and Capsicum frutescens, control effects related to fungicides.
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