Resumen

LEON-TELLO, Martha Ivone et al. Potential weeds as a trap crop for Meloidogyne enterolobii and Nacobbus aberrans. Rev. Mex. Cienc. Agríc [online]. 2024, vol.15, n.8, e3610.  Epub 20-Mayo-2025. ISSN 2007-0934.  https://doi.org/10.29312/remexca.v15i8.3610.

The use of weeds as an agroecological management strategy for phytonematodes has gained importance due to their implementation as trap plants that interfere with their biological cycle; therefore, this research aimed to evaluate the percentage of reproduction of Meloidogyne enterolobii and Nacobbus aberrans in five weeds. This experiment was carried out at the College of Postgraduates, Montecillo Campus, State of Mexico, Mexico, in 2023. The chili genotype CM-334 (control) was used as a susceptibility reference and each experimental unit was inoculated with 1000 J2 of each nematode species. The response variables were galling, egg masses, eggs, number of females and juveniles per g of root at 35 days after inoculation (dai) for Meloidogyne enterolobii and 45 dai for Na. A completely randomized experimental design with factorial arrangement was used. The weeds Tagetes erecta, Portulaca oleracea, Dysphania ambrosioides, Malva parviflora, and Oxalis corniculata showed a 100% decrease in the number of galls, egg masses, and eggs per g of root for Nacobbus aberrans, compared to the control. These last two parameters were similar for Meloidogyne enterolobii. All weeds evaluated showed a differential reproduction percentage for both nematodes in the number of females and individuals per g of root (7.34-100%). The results obtained indicate that these weeds can be used as a potential trap crop for the management of the nematodes Meloidogyne enterolobii and Nacobbus aberrans.

Palabras llave : Dysphania ambrosioides; Malva parviflora; Oxalis corniculata; Portulaca oleracea; Tagetes erecta..

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