The Canadian Entomologist

Articles

1-Octen-3-ol is repellent to Ips pini (Coleoptera: Curculionidae: Scolytinae) in the midwestern United States

Therese M. Polanda1 c1, Deepa S. Pureswarana2, Tina M. Ciaramitaroa3 and John H. Bordena4

a1 United States Department of Agriculture, Forest Service, Northern Research Station, Room 220, 1407 South Harrison Road, East Lansing, Michigan 48823, United States of America

a2 Canadian Forest Service, Natural Resources Canada, P.O. Box 4000, 1350 Regent Street, Fredericton, New Brunswick, Canada E3B 5P7

a3 Department of Entomology, 243 Natural Sciences, Michigan State University, East Lansing, Michigan 48824, United States of America

a4 Contech Enterprises Inc., 7572 Progress Way, Delta, British Columbia, Canada V4G 1E9

Abstract

In field experiments at three sites in Michigan and Ohio we tested the activity of 1-octen-3-ol in combination with ipsdienol, the aggregation pheromone of the pine engraver, Ips pini (Say). When 1-octen-3-ol was added to funnel traps baited with ipsdienol, significantly fewer beetles of either sex were captured than in traps baited with ipsdienol alone. This result suggests that the compound is potentially repellent and interrupts the response of beetles to their aggregation pheromone, and is consistent with previous reports of its inhibition of aggregation behaviour in other bark beetles.

Résumé

Dans des expériences sur le terrain dans trois sites du Michigan et de l’Ohio, nous avons testé l’activité du 1-octén-3-ol en combinaison avec l’ipsdiénol, la phéromone d’agrégation du scolyte du pin, Ips pini (Say). Quand on ajoute du 1-octén-3-ol aux pièges à entonnoir garnis d’ipsdiénol, les captures des coléoptères des deux sexes sont significativement moins importantes que dans les pièges munis d’ipsdiénol seul. Ces résultats indiquent que ce composé est potentiellement répulsif et perturbe la réaction des coléoptères à leur phéromone d’agrégation. Cette observation est en accord avec les inhibitions du comportement d’agrégation observées chez les autres scolytes.

[Traduit par la Rédaction]

(Received January 14 2009)

(Accepted February 10 2009)

Correspondence:

c1 Corresponding author (e-mail: tpoland@fs.fed.us).

Related Content