El plaguicida orgánico de los residuos del lavado de la quinua (Chenopodium quinoa) y los nemátodos en cultivo en papas (Solanum tuberosum) en el cantón Quero

Abstract

In the present investigation the nematicidal effect of the water residues of the first wash of quinoa (Chenopodium quinoa) was studied. The first analyzes were carried out with a selection of in vitro nematodes at different concentrations of bionematicide, where it was determined that after 240 min, and at a concentration of 100% v/v washing water, nematode mortality increased (~ 94% ). Subsequently, a field study was carried out applying bionematicide to potato crops (Solanum tuberosum). The product was applied in different periods of potato cultivation as the seed stage (A), seed stage and rascadillo (B), sowing stage, rascadillo and aporque (C). The best results were obtained when the bionematicide was applied in the three stages of cultivation (sowing, rascadillo and aporque) where the nematode population was reduced by 86%. This study opens the possibility of using a residue from the processing industry of quinoa in the control of plant parasitic nematodes.