Strain distribution of alfalfa weevil (Coleoptera: Curculionidae) in an intergrade zone.
Strain distribution for the alfalfa weevil, Hypera postica (Gyllenhal), was determined for the five major alfalfa-growing regions of New Mexico. Mitochondrial DNA from field-collected weevils at each location was digested and sequenced to differentiate among strains. Eastern, Egyptian, and western strains were recovered, along with a population not matching any known strain. The majority of sites examined had populations of two strains intermingled within a field. This is the first confirmation of the presence of all three strains within the same geographic region. Possible implications for alfalfa weevil management are discussed.
Bundy
C Scott
CS
Department of Entomology, Plant Pathology, and Weed Science, New Mexico State University, Las Cruces, NM 88003, USA.
Smith
Paul F
PF
English
L Mike
LM
Sutton
Dennis
D
Hanson
Steve
S
D000818:Animals; D004272:DNA, Mitochondrial / Q000235:genetics; D003710:Demography; D017344:Genes, Insect / Q000235:genetics; D000455:Medicago sativa / Q000469:parasitology; D009516:New Mexico; D048889:Weevils / Q000145:classification* / Q000235:genetics*
D004272:DNA, Mitochondrial