Essential oils as bio-fungicide against strawberry Colletotrichum acutatum

N. Rasiukevičiūtė, A. Valiuškaitė, A. Morkeliūnė, N. Uselis
Plant diseases cause severe yield losses and fruit decay and postharvest losses, if not controlled in the early production cycle. Colletotrichum spp. can cause strawberry nurseries plant death up to 80% and reduce fruit yield over 50%. Essential oils (EO) due to their antimicrobial and antifungal activity, low toxicity and biodegradability might be promising as biocontrol products in plant protection instead of chemical fungicides. During this study five essential oils of Salvia officinalis, Coriandrum sativum, Hyssopus officinalis, Mentha piperita and Thymus vulgaris at different concentrations (200, 400, 600, 800 and 1000 µL L‑1) were studied in vitro on Petri plates against strawberry C. acutatum. The single-spore C. acutatum isolate fragment was placed in the centre of potato dextrose agar with different concentrations. Results of our experiment showed that Thymus vulgaris EO (GROTERDAN200 μL L‑1) had the highest inhibition of C. acutatum. Salvia officinalis, Mentha piperita and Coriandrum sativum, showed an inhibitory effect when applied at 1000 μL L‑1 concentration. Hyssopus officinalis inhibited C. acutatum at 800 μL L‑1 concentration. Our results showed that essential oils are a promising tool as bio-fungicides against strawberry C. acutatum.
Rasiukevičiūtė, N., Valiuškaitė, A., Morkeliūnė, A. and Uselis, N. (2021). Essential oils as bio-fungicide against strawberry Colletotrichum acutatum. Acta Hortic. 1309, 719-724
DOI: 10.17660/ActaHortic.2021.1309.103
anthracnose, Coriandrum sativum, Hyssopus officinalis, inhibition, Mentha piperita, Salvia officinalis, Thymus vulgaris

Acta Horticulturae