TY - JOUR
T1 - First record of native entomopathogenic nematodes from Montana agroecosystems
AU - Sandhi, Ramandeep K.
AU - Pothula, Ratnasri
AU - Pothula, Satyendra K.
AU - Adams, Byron J.
AU - Reddy, Gadi V.P.
N1 - Publisher Copyright:
© 2020 Authors.
PY - 2021
Y1 - 2021
N2 - A total of 30 different agricultural fields in the Golden Triangle Region of Montana, USA were surveyed, and 150 soil samples were evaluated for the presence of entomopathogenic nematodes (EPNs). The authors isolated EPNs from 10% of the collected samples. The recovered isolates were identified as Steinernema feltiae and Heterorhabditis bacteriophora by using morphological and molecular analysis. Steinernema feltiae was found from two fields, Kalispell (S. feltiae 1) and Choteau (S. feltiae 2). Steinernema feltiae (1 and 2) differed significantly from each other in terms of morphological characters for infective juveniles (distance from anterior end to excretory pore and nerve ring) and 1st generation males (body length, spicule length, gubernaculum length, oesophagus, tail, and anal body diameter). Steinernema feltiae 2 and H. bacteriophora were recovered from the same field in Choteau. All these species were recovered from wheat fields with sandy clay loam and loam soils with 3.3 to 3.4% organic matter content and pH 8.
AB - A total of 30 different agricultural fields in the Golden Triangle Region of Montana, USA were surveyed, and 150 soil samples were evaluated for the presence of entomopathogenic nematodes (EPNs). The authors isolated EPNs from 10% of the collected samples. The recovered isolates were identified as Steinernema feltiae and Heterorhabditis bacteriophora by using morphological and molecular analysis. Steinernema feltiae was found from two fields, Kalispell (S. feltiae 1) and Choteau (S. feltiae 2). Steinernema feltiae (1 and 2) differed significantly from each other in terms of morphological characters for infective juveniles (distance from anterior end to excretory pore and nerve ring) and 1st generation males (body length, spicule length, gubernaculum length, oesophagus, tail, and anal body diameter). Steinernema feltiae 2 and H. bacteriophora were recovered from the same field in Choteau. All these species were recovered from wheat fields with sandy clay loam and loam soils with 3.3 to 3.4% organic matter content and pH 8.
KW - Entomopathogenic nematodes
KW - Golden Triangle Region of Montana
KW - Heterorhabditis
KW - Steinernema
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U2 - 10.21307/jofnem-2020-060
DO - 10.21307/jofnem-2020-060
M3 - Article
AN - SCOPUS:85096725066
SN - 0022-300X
VL - 52
JO - Journal of Nematology
JF - Journal of Nematology
M1 - e2020-60
ER -