Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Essential oils of plant species reduce the lovegrass germination.

Abstract

Lovegrass (Eragrostis plana Nees) is a perennial tropical grass native to southwestern Africa, which was introduced accidentally in the 1950s and, since its spread, has become a major invasive plant in the south of Brazil due to its characteristics of high competitiveness and difficult control, compromising the quality of the natural pastures belonging to the Pampa Biome. Thus, the objective of this study was to analyze the potential of some aromatic species on lovegrass germination. Different concentrations of essential oil of rosemary, cinnamon, carqueja, lemongrass, cypress, citronella, eucalyptus citriodora, eucalyptus grandis, melaleuca, bay laurel and pinus were tested as a wetting solution of germination paper in boxes of gerbox type. Data of first count, accumulated germination and germination rate index were calculated. The oils of the different species varied in the potential of germination inhibition, this variation was also observed in responses to the concentrations. Melaleuca, carqueja and laurel oils were highlighted in the control of the lovegrass germination, indicating that they are promising for the formulation of products to contain the dispersion of this invasive species.