Abstract
AIM: To assess the effect of several commercial essential oils samples Australian lemon myrtle (Backhousia citriodora), cinnamon bark (Cinnamomum zeylanicum), oregano (Origanum vulgare), thyme oil (Thymus vulgaris), clove bud (Eugenia caryophyllata), valerian (Valeriana officinalis) and Australian tea tree oil (Melaleuca alternifolia) on mycelium growth and spore germination of Monilinia fructicola. The effectiveness of lemon myrtle essential oil as a fumigant for the control of brown rot in nectarines was evaluated. METHODS AND RESULTS: Monilinia fructicola exhibited a different level of sensitivity to each tested essential oil with results suggesting that the essential oils provide excellent control of the pathogen with respect to mycelium growth and spore germination at very low concentrations, whereas for others higher concentrations are needed to reduce significant fungal growth. In vivo application of lemon myrtle essential oil effectively reduced the incidence of M. fructicola on noninoculated fruit. Fumigation of nectarines following inoculation did not reduce the incidence of brown rot in comparison with the inoculated control treatment. No evidence of phytotoxicity on the fruit was recorded. CONCLUSIONS: Lemon myrtle essential oil exhibited the strongest antifungal activity against M. fructicola, in vitro and to a lesser extent, under in vivo conditions. SIGNIFICANCE AND IMPACT OF THE STUDY: The results demonstrate that lemon myrtle essential oil, in particular, has potential as an antifungal agent to control M. fructicola.
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Claims 5
Claim · model-written summary
Tested essential oils differed in suppression of Monilinia mycelial growth and spore germination.
- Treatment
- essential oilse0
- Interactor
- Monilinia fructicola
Monilinia fructicolae0pathogen - Outcome
- mycelium growth and spore germinatione0
- Direction
- reducee0
Not reportedTaxonComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Monilinia fructicola exhibited a different level of sensitivity to each tested essential oil with results suggesting that the essential oils provide excellent control of the pathogen with respect to mycelium growth and spore germination at very low concentrations, whereas for others higher concentrations are needed to reduce significant fungal growth”
Claim · model-written summary
Lemon myrtle oil reduced M. fructicola incidence on noninoculated fruit.
- Taxon
- nectarines
Prunus persica var. nucipersicat0 - Treatment
- lemon myrtle essential oile0
- Interactor
- M. fructicolaMonilinia fructicolae0pathogen
- Outcome
- incidence of M. fructicolae0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In vivo application of lemon myrtle essential oil effectively reduced the incidence of M. fructicola on noninoculated fruit”
t0“The effectiveness of lemon myrtle essential oil as a fumigant for the control of brown rot in nectarines was evaluated.”
Claim · model-written summary
Postinoculation fumigation did not reduce brown rot incidence relative to inoculated controls.
- Taxon
- nectarinesPrunus persica var. nucipersicae0
- Treatment
- Fumigatione0
- Outcome
- incidence of brown rote0
- Direction
- did not reducee0
- Comparator
- inoculated control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fumigation of nectarines following inoculation did not reduce the incidence of brown rot in comparison with the inoculated control treatment”
Claim · model-written summary
No fruit phytotoxicity was observed.
- Taxon
- nectarinesPrunus persica var. nucipersicae1
- Outcome
- phytotoxicity on the fruite0
- Direction
- No evidencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No evidence of phytotoxicity on the fruit was recorded”
e1“Fumigation of nectarines following inoculation”
Claim · model-written summary
Lemon myrtle oil had the strongest antifungal activity in vitro and weaker activity in vivo.
- Treatment
- Lemon myrtle essential oile0
- Interactor
- M. fructicolaMonilinia fructicolae0pathogen
- Outcome
- antifungal activitye0
- Direction
- strongeste0
Not reportedTaxonComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lemon myrtle essential oil exhibited the strongest antifungal activity against M. fructicola, in vitro and to a lesser extent, under in vivo conditions”
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See all 7 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.