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Revista Brasileira de Plantas Medicinais
Print version ISSN 1516-0572
LORENZETTI, E.R. et al. Essential oils bioactivity in strawberry grey mould control. Rev. bras. plantas med. [online]. 2011, vol.13, n.spe, pp. 619-627. ISSN 1516-0572. http://dx.doi.org/10.1590/S1516-05722011000500019.
This study aimed evaluates essential oils in Botrytis cinerea isolates growth, which causes gray mould on strawberry. Were tested essential oils of lemon grass, palmrose, citronella, clove, cinnamon, mint, lavender, tangerine, eucalyptus, tea tree, rosemary and orange. The oils were analyzed in gas chromatograph attached to mass detector for identifying the mainly oils components. Were evaluated mycelial growth, conidia production and conidia germination of B. cinerea, with oil incorporation in culture medium. Were conducted an evaluation of oils volatile components and the efficiency of oils in fungicide-resistant isolate. For each test, different oils showed efficiency, however lemongrass, palmarosa, cinnamon and mint showed the best effects in all tests. All treatments demonstrated similar effects to recommended fungicide for the culture, which had methyl thiophanate. Two treatments (lemon grass and cinnamon oils), were effective against resistant isolate. Essential oils are shown as promising option for development of possible product for plant disease management.
Keywords : Fragaria x ananassa Duch; Ex. Rozier; organic agriculture; fungicide resistance; biological control; essential oil; Botrytis cinerea.