Control of guava cloves with plant extracts
DOI:
https://doi.org/10.29312/remexca.v11i2.2071Keywords:
Eucalyptus, Psidium guajava, bioassays, field evaluationAbstract
Extracts made by alcoholic maceration, showed the greatest inhibition of the growth of the P. clavispora fungus with respect to water maceration or infusion. In bioassays with alcoholic extracts concentrated with rotary evaporator and filtered, extracts of jaral (Cistus sp.), olives (Bidens odorata Cav.), Mesquite (Prosopis laevigata Humb. & Bonpl. Ex Willd.), paradise (Melia azedarach L.), olive tree (Olea europaea L.), trompillo (Solanum eleagnifolium Cav.), lantana (Lantana sp.), rosemary (Rosmarinus sp.), rue (Ruta graveolens L.), venadilla (Bursera simaruba (L.) SARG.), cow tongue (Rumex crispus L.) and Australian eucalyptus (Corymbia (=Eucalyptus) gummifera (Gaertn.) Hill & Johnson) showed fungal growth reductions, greater than 90%. In the field, extracts of red eucalyptus plants (Eucalyptus camaldulensis) and Australian eucalyptus (Corymbia gummifera) showed less damage than chemical synthesis fungicides evaluated. The foregoing indicates that the use of these extracts is feasible in the control of the P. clavispora fungus, reducing the environmental impact.
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