Efecto de tres productos para el control de nematodos asociados a las raíces del clavel (Dianthus caryophyllus L.) var. Dante

Abstract

This investigation aimed to evaluate three products for the control of root-associated nematodes of carnation (Dianthus caryophyllus L.) var. Dante. L. The methodology implemented had a qualitative and quantitative approach, an experimental design of completely randomised blocks (EDCRB) was used, three treatments of three replications were evaluated with a total of nine experimental units, the variables evaluated were; number of nematode population, level of damage, control efficacy, stem height, stem diameter, polar and equatorial diameter of the flower bud, flowering time to harvest point, and number of stems per plant. By means of this methodology, it was possible to determine that by using Methanoate K, a greater reduction in the population of nematodes was obtained; in the efficacy of control, Benfuracarb reduced the population of the nematodes Meloidogyne spp, Pratylenchus spp., and Hemicycliophora spp. with 100%, Heterodera spp. with 88% and free-living nematodes with 80%; in stem diameter, a greater diameter of 6.8 mm was obtained with Trichoderma+Paecilomyces; in flower polar diameter K, a greater diameter of 47.37 mm was obtained with Methanoate, regarding to the economic analysis the treatment based on Methanoate K is more profitable. It is concluded that the three products studied Meloidogyne spp., Pratylenchus spp. and Hemicycliophora spp. showed 100% efficacy for the nematodes: However, T3 (Benfuracarb) outperformed the other treatments in the control of Heterodera spp. with 88% efficacy. On the other hand, the treatment based on Trichoderma+Paecilomyces was the one that reduced the population of free-living nematodes the least.