Pest Management Science (2012) 68, 1048-1052

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Jordan L. Burke, James L. Hanula, Scott Horn, Jackson P. Audley and Kamal J.K. Gandhi (2012)
Efficacy of two insecticides for protecting loblolly pines (Pinus taeda L.) from subcortical beetles (Coleoptera: Curculionidae and Cerambycidae)
Pest Management Science 68 (7), 1048-1052
Abstract: BACKGROUND: Tests were conducted on two insecticides (carbaryl and bifenthrin) for excluding subcortical beetles (Coleoptera: Curculionidae and Cerambycidae) from loblolly pine trees (Pinus taeda L.). Two trap designs (single- and double-pane windows) and two trapping heights (1.5 and 4 m) were also evaluated for maximizing beetle catches.
RESULTS: In July 2009, 15 loblolly pine trees were double girdled and were either left unsprayed or sprayed with carbaryl or bifenthrin. A total of 28 473 bark beetles were caught in window traps, including Ips avulsus Eichoff, I. grandicollis (Eichhoff), I. calligraphus (Germar) and Dendroctonus terebrans (Olivier). Both insecticides significantly reduced colonization of the trees by bark and woodboring beetles by 300-400%, with no differences in efficacy observed between the two insecticides. About 59% more I. avulsus were caught in double- than in single-pane window traps, with no differences for any other species. Traps at 4 m caught more I. avulsus and I. grandicollis (290 and 153% respectively), while traps at 1.5 m caught more D. terebrans (215%).
CONCLUSIONS: Either bifenthrin or carbaryl can be used to exclude subcortical beetles from loblolly pine trees. Trapping data reflect known vertical partitioning on the bole by these insects. Double-pane traps were slightly more effective than single-pane traps in catching subcortical beetles.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: English)
Link to article at publishers website
Database assignments for author(s): Jackson Audley, Kamal J.K. Gandhi, Scott Horn

Research topic(s) for pests/diseases/weeds:
control - general
pheromones/attractants/traps


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Dendroctonus terebrans Pine (Pinus)
Ips grandicollis Pine (Pinus)
Ips avulsus Pine (Pinus)
Ips calligraphus Pine (Pinus)