Comparative Behavioural Responses ofDryocoetes confususSwaine,Dendroctonus rufipennis(Kirby), andDendroctonus ponderosaeHopkins (Coleoptera: Scolytidae) to Angiosperm Tree Bark Volatiles

Huber, Dezene P. W.; Borden, John H.

doi:10.1603/0046-225x-32.4.742

Cited by 15 publications

(14 citation statements)

References 33 publications

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“…This additive-redundant trend is consistent with similar findings by Borden et al (1998), Huber and Borden (2003) , and Zhang and Schlyter (2003) , for combinations of repellent non-host angiosperm volatiles. This additive-redundant trend is consistent with similar findings by Borden et al (1998), Huber and Borden (2003) , and Zhang and Schlyter (2003) , for combinations of repellent non-host angiosperm volatiles.…”

Section: Discussionsupporting

confidence: 90%

“…When the visual stimulus was combined with olfactory cues of non-host angiosperms, there was an additively repellent effect in most cases, with evidence of considerable redundancy. This additive-redundant trend is consistent with similar findings by Borden et al (1998), Huber and Borden (2003) , and Zhang and Schlyter (2003) , for combinations of repellent non-host angiosperm volatiles. Borden et al (1998) hypothesised that this was because coniferophagous beetles should have evolved a generalised avoidance of multicomponent angiosperm volatile blends (rather than specific compounds) and that additivity or redundancy of non-host chemicals should be favoured over a synergistic response that might deter beetles from too wide an area (e.g.…”

Section: Discussionsupporting

confidence: 90%

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Integration of visual and olfactory cues of hosts and non‐hosts by three bark beetles (Coleoptera: Scolytidae)

Campbell

Borden

2006

Ecological Entomology

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1. There has been a long-standing pre-occupation with how phytophagous insects use olfactory cues to discriminate hosts from non-hosts. Foragers, however, should use whatever cues are accurate and easily assessed, including visual cues.2. It was hypothesised that three bark beetles, the mountain pine beetle (MPB), Dendroctonus ponderosae Hopkins, the Douglas-fir beetle (DFB), D. pseudotsugae Hopkins, and the western balsam bark beetle (WBBB), Dryocoetes confusus Swaine, integrate visual and olfactory information to avoid non-host angiosperms (e.g. paper birch, trembling aspen), that differ in visual and semiochemical profile from their respective host conifers (lodgepole pine, Douglas-fir, interior fir), and tested this hypothesis in a series of field trapping experiments.3. All three species avoided attractant-baited, white (non-host simulating) multiplefunnel traps, and preferred attractant-baited black (host-simulating) traps. In experiments combining white, non-host traps with non-host angiosperm volatiles, bark beetles were repelled by these stimuli in an additive or redundant manner, confirming that these species could integrate visual and olfactory information to avoid non-host angiosperms while flying.4. When antiaggregation pheromones were released from white traps, the DFB and MPB were repelled in an additive-redundant manner, suggesting that beetles can integrate diverse and potentially anomalous stimuli.5. The MPB demonstrated the most consistent visual preferences, suggesting that it may be more of a 'visual specialist' than the DFB or WBBB, for which visual responses may be more contingent on olfactory inputs. * Colour refers to trap colour, followed by abbreviations for semiochemical treatments: NHV = non-host volatile blend; HV = host volatile blend; AA = antiaggregation pheromones. Species-specifi c semiochemicals listed by experiment: NHV1 = benzyl alcohol + guaiacol; NHV2 = benzyl alcohol + hexanol; NHV3 = guaiacol; NHV5 = hexanol; HV = ␣ -pinene + ethanol; MCH = antiaggregation pheromone of the Douglas-fi r beetle; verbenone = antiaggregation pheromone of the mountain pine beetle. See Table 2 for semiochemical information. Locations in British Columbia, Canada: Interior DFB -Laluwissin Creek Forest Service Road (FSR) near the town of Lytton; coastal DFB -Malcolm Knapp University of British Columbia Research Forest, near Maple Ridge; WBBB -Buchanan FSR, Buck Mountain, near Kelowna; MPB -Opax Mountain, near Kamloops.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionsupporting

confidence: 90%

Integration of visual and olfactory cues of hosts and non‐hosts by three bark beetles (Coleoptera: Scolytidae)

Campbell

Borden

2006

Ecological Entomology

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“…There is an accumulating body of evidence suggesting that foraging coniferophagous bark beetles detect and avoid volatile compounds released from the leaves and/or bark of angiosperms and other nonhost taxa ('nonhost volatiles'), and thereby may improve foraging efficiency by avoiding nonhostdominated habitats and landings on unsuitable trees. Numerous individual nonhost volatiles have been identified and shown to inhibit coniferophagous bark beetle responses to traps baited with attractant pheromones and/or host kairomones (e.g., Dickens et al, 1992;Huber and Borden, 2003;summarized in Zhang and Schlyter, 2004;Zhang et al, 2007;Dodds and Miller, 2010;Fettig et al, 2012). Furthermore, nonhost volatiles have been used with some success to protect individual trees from bark beetle attacks Jakuš et al, 2003;Fettig et al, 2009;Schiebe et al, 2011;Schlyter, 2012).…”

Section: Introductionmentioning

confidence: 99%

Southern Pine Beetle, Dendroctonus frontalis, Antennal and Behavioral Responses to Nonhost Leaf and Bark Volatiles

Shepherd

Sullivan

2013

J Chem Ecol

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A growing body of evidence suggests that bark beetles detect and avoid release points of volatile compounds associated with nonhost species, and thus such nonhost volatiles may have potential utility in the management of bark beetles. We used a coupled gas chromatograph-electroantennographic detector (GC-EAD) to assay the olfactory sensitivity of the southern pine beetle, Dendroctonus frontalis Zimmermann, to volatiles from leaves and bark of eight species of nonhost angiosperm trees that are common in the range of D. frontalis. Tree species sampled were red maple (Acer rubrum L.), mockernut hickory [Carya alba (L.) Nutt. ex Ell.], sweetgum (Liquidambar styraciflua L.), black tupelo (Nyssa sylvatica Marsh.), black cherry (Prunus serotina Ehrh.), southern red oak (Quercus falcata Michx.), blackjack oak [Quercus marilandica (L.) Muenchh.], and water oak (Quercus nigra L.). Beetle antennae responded to a total of 28 identifiable compounds in these samples. The relative olfactory responsiveness to 14 of these, as well as to nonanoic acid and four additional volatiles reported to be associated with nonhost angiosperms, was assessed in GC-EAD analyses of synthetic dilutions spanning six orders of magnitude. The largest response voltage amplitudes were obtained with trans-conophthorin, nonanoic acid, terpinen-4-ol, phenylethyl alcohol, and eucalyptol, whereas the lowest response thresholds were to nonanoic acid, nonanal, linalool, (E)-2-hexen-1-ol, and phenylethyl alcohol. Funnel traps baited with various combinations of eleven antennally-active angiosperm volatiles along with a standard attractant captured significantly fewer male and female D. frontalis than traps baited with the standard attractant alone. Our data suggest that a diversity of semiochemicals may be involved in host species discrimination by D. frontalis, and several may have utility in their management.

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“…and Gray, P. tremuloides Michx., bigleaf maple, Acer macrophyllum Pursh, and paper birch, Betula papyrifera Marsh. (Huber et al 1999), as well as guaiacol, hexanal, (E)-2-hexenal, and salicylaldehyde (Huber et al 1999Huber and Borden 2003). Nonhost volatile blends alone were effective in delaying and reducing attack on pheromone-baited lodgepole pines, but the greatest disruption of attack was achieved when nonhost volatile blends were combined with verbenone Huber and Borden 2001).…”

Section: Introductionmentioning

confidence: 99%

Protection of lodgepole pine from attack by the mountain pine beetle, Dendroctonus ponderosae (Coleoptera: Scolytidae) using high doses of verbenone in combination with nonhost bark volatiles

Borden¹,

Chong²,

Earle³

et al. 2003

The Forestry Chronicle

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We evaluated the antiaggregation pheromone verbenone at low and high doses alone and with a seven-component repellent blend of nonhost angiosperm bark volatiles (NHVs) for their ability to deter attack by the mountain pine beetle, Dendroctonus ponderosae Hopkins. Release devices containing antiaggregants were deployed at 16 points on a 10-m grid in 40 × 40-m plots near Williams Lake, B.C. in June 2001. In 10 control plots with no antiaggregants, single pheromone-baited trees, at the plot centre were all mass-attacked by the mountain pine beetle by early October, as were 26.6% of the 432 lodgepole pines within the boundaries of the plots. In contrast, in plots treated with a high dose of verbenone plus NHVs, two of the central, pheromone-baited trees escaped any attack whatsoever, four of 10 plots had no surrounding trees attacked and only 2.1% of the total of 523 surrounding trees were mass-attacked. Density of attacked and mass-attacked trees was highest within 5 m of the central baited tree in all treatments, indicating that those beetles that breached the antiaggregant grid were then drawn toward the baited tree. Operational efficacy should thus be improved in the absence of baited trees within a treated area. We conclude that high-dose verbenone plus NHV treatments could be implemented operationally as a minor component of an integrated pest management strategy for large infestations, particularly in a push-pull tactic in which beetles are pushed from one area by the antiaggregant treatment and drawn into another with attractive baits. However, the principal use would be in the short-term protection of small, high-value stands or stands of high ecological or social value.Key words: Coleoptera, Scolytidae, Dendroctonus ponderosae, chemical ecology, verbenone, pest management Nous avons évalué le phéromone antiagrégation verbenone seul à faibles et à fortes doses et avec un mélange répulsif de sept composants volatiles d'écorce d'angiosperme non-hôtes pour sa capacité à détourner les attaques du dendroctone du pin ponderosa, Dendroctonus ponderosae Hopkins. Les appareils permettant de répandre les antiagrégants ont été déployés sur 16 stations réparties selon un quadrillage de 10 m dans des parcelles de 40 × 40 m situées près de Williams Lake, C.-B., en juin 2001. Dans les 10 parcelles témoins sans antiagrégants, les arbres individuels traités comme appât aux phéromones, situés au centre des parcelles ont tous été attaqués massivement par le dendroctone dès le début d'octobre, ainsi que 26 % des 432 pins lodgepoles retrouvés dans les limites des parcelles. Par contre, dans le cas des parcelles traitées avec une forte dose de verbenone additionné du mélange répulsif, deux des arbres du centre traités comme appât aux phéromones ont échappé à toutes les attaques, quatre des 10 parcelles n'ont eu aucun arbre attaqué et seulement 2,1 % des 523 arbres situés à proximité ont été attaqués massivement. La densité des arbres attaqués et attaqués massivement était plus élevée en deçà de 5 m de l'arbre appât dans tous les...

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Comparative Behavioural Responses ofDryocoetes confususSwaine,Dendroctonus rufipennis(Kirby), andDendroctonus ponderosaeHopkins (Coleoptera: Scolytidae) to Angiosperm Tree Bark Volatiles

Cited by 15 publications

References 33 publications

Integration of visual and olfactory cues of hosts and non‐hosts by three bark beetles (Coleoptera: Scolytidae)

Integration of visual and olfactory cues of hosts and non‐hosts by three bark beetles (Coleoptera: Scolytidae)

Southern Pine Beetle, Dendroctonus frontalis, Antennal and Behavioral Responses to Nonhost Leaf and Bark Volatiles

Protection of lodgepole pine from attack by the mountain pine beetle, Dendroctonus ponderosae (Coleoptera: Scolytidae) using high doses of verbenone in combination with nonhost bark volatiles

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