Monday, 15 November 2004
D0063

Behavioral response of Otiorhynchus sulcatus (F.) larvae to Metarhizium anisopliae and Talstar in soil

Ryan M Kepler, keplerr@onid.orst.edu, Oregon State University, Horticulture, 4017 Agricultural and Life Sciences Bldg, Corvallis, OR and Denny J. Bruck, bruckd@onid.orst.edu, USDA-ARS Horticultural Crops Research Laboratory, 3420 N.W. Orchard Ave, Corvallis, OR.

Experiments were conducted to assess the behavioral response of Black Vine Weevil (BVW), Otiorhynchus sulcatus (F.) (Coleoptera: Curculionidae) larvae to the presence of Metarhizium anisopliae and Talstar in soil. Six week old BVW larvae were placed in a “Y” tube attached to an olfactometer. One channel of the “Y” tube received a live plant growing in soil inoculated with M. anisopliae at one of three different concentrations (1 × 106, 107, 108 spores/g soil) or Talstar at 25 ppm. The other channel received a live plant growing in uninoculated soil. Behavioral response was assessed by determining which channel of the olfactometer the larvae migrated into.


Species 1: Coleoptera Curculionidae Otiorhynchus sulcatus (black vine weevil)
Keywords: behavior, soil ecology

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