Survey of entomopathogenic nematodes from the families Steinernematidae and Heterorhabditidae (Nematoda: Rhabditida) in Colima, México

Authors

Isaac Zepeda-Jazo, Universidad de la Cie´nega del Estado de Michoaca´n de Ocampo, Universidad de Colima
Jaime Molina-Ochoa, Universidad de Colima, University of Nebraska-LincolnFollow
Roberto Lezama-Gutiérrez, Universidad de Colima
Steven R. Skoda, USDA-ARSKBUSLIRL Screwworm Research Unit
John E. Foster, University of Nebraska-LincolnFollow

Document Type

Article

Date of this Version

2013

Citation

International Journal of Tropical Insect Science Vol. 34, No. 1, pp. 53–57, 2014; doi:10.1017/S1742758413000416

Comments

Copyright © 2014 icipe. Used by permission.

Abstract

A survey of entomopathogenic nematodes (EPNs) belonging to the families Steinernematidae and Heterorhabditidae was conducted in three municipalities on the Pacific coast of the State of Colima, Me´xico, to determine their occurrence and recovery frequency and predominant plant species in cultivated and non-cultivated habitats. Nineteen soil samples were collected: seven from non-cultivated habitats and 12 from habitats or areas cultivated mostly with fruit and grain crops and grasses. Of the 19 soil samples, 14 were positive for EPNs; the total prevalence was 73.7%. From the 14 positive soil samples, 12 steinernematid isolates (85.7%) and two heterorhabditid isolates (14.3%) were recovered. Irrespective of the locations, EPNs from the genus Steinernema were recovered from the three municipalities; EPNs from the genera Steinernema and Heterorhabditis were recovered from Armerı´a and Ixtlahuaca´n. Only steinernematid isolates were recovered from non-cultivated habitats. Most of the isolates were recovered from cultivated habitats, and our results suggest that there is a higher prevalence of EPNs in cultivated soils.