Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Damage caused by Caryedes sp. (COLEOPTERA; BRUCHIDAE) and their reflections in the propagation of Enterolobium contortisiliquum (LEGUMINOSAE).

Abstract

The aim of this study was to quantify the damage caused by Caryedes sp. in seeds of E. contortisiliquum; to test different methods to overcome dormancy; and to determine the influence of this damage on the germination and vigor of the seeds. Healthy seeds were submitted to five treatments in order to overcome dormancy. Five-hundred fruits with a total 5,245 seeds, with a mean of 10.47±2.99 per fruit, were evaluated. As a result, 9.00±3.32 were considered healthy and 0.26±0.63 were damaged by the bruchid. The scarification toward the heel promoted higher germination and it was used for comparison to the attacked seeds. The bruchid attack can significantly reduce the germination of tamboril seeds.