Laboratory evaluation of <i>Geocoris bullatus</i> and <i>Nabis alternatus</i> as predators of <i>Lygus</i>

Authors

  • George Tamaki Yakima Agricultural Research Laboratory Agric. Res. Serv. Yakima, WA
  • D. P. Olsen Yakima Agricultural Research Laboratory Agric. Res. Serv. Yakima, WA
  • R. K. Gupta Dept of Entomology Washington State University Pullman, WA

Keywords:

<i>Geocoris bullatus</i>, <i>Nabis alternatus</i>, <i>Lygus</i>, biological control

Abstract

Adults of <i>Geocoris bullatus</i> were not effective predators against late nymphs and adults of <i>Lygus</i>, but adults of <i>Nabis alternatus</i> were effective against these stages. Both predators were effective against the young <i>Lygus</i> nymphs. Males of <i>N. alternatus</i> were almost as successful as females against small prey but were less effective against the late-stage <i>Lygus</i>.

References

Fye, R.E. 1978. Analysis of cotton insect populations in southern Arizona: Impact of predators and other mortality factors. USDA Tech. Bull. (In press).

Johansen, C.A., E.C. Klostermeyer, A.H. Retan, and R.R. Madsen. 1976. Integrated pest management on alfalfa grown for seed. Wash. State Univ., Coll. Agric. and Coop. Ext. Serv. EM 3755. 8 p0.

Perkins, P.V., and T.F. Watson. 1972. Nabis alternatus as a predator of Lygus hesperus. Ann. Entomol. Soc. Am. 65:625-9.

Tamaki, G., and B.A. Butt. 1977. Biology of the false celery leaf tier and damage to sugarbeets. Environ. Entomol. 6:35-8.

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Published

2019-08-28

Issue

Vol. 75 (1978): Journal of the Entomological Society of British Columbia

Section

Articles

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