Abstract

This study aimed to evaluate the potential of essential oils of rosemary ( Rosmarinus officinalis ), baccharis ( Baccharis trimera ), lemon grass ( Cymbopogon citratus ), basil ( Ocimum basilicum ) and eucalyptus ( Corymbia citriodora ) in inducing resistance in cotton plants against C. gossypii var. cephalosporioides . The inductive effect of the essential oils was evaluated in plants growing in pots in the environment, which were treated with 1% essential oil at 47 days of age. 24 hours after elicitor treatment the plants were inoculated with a suspension of 1.5 x 10 5 conidia mL -1 of C. gossypii var. cephalosporioides . Five evaluations were performed disease and calculated the area under the disease progress curve. All essential oils showed potential for inducing resistance against cotton C. gossypii var. cephalosporioides .

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