Semiochemicals for the mountain pine beetle, <i>Dendroctonus</i><i>ponderosae</i> (Coleoptera: Scolytidae) in British Columbia: field trapping studies

Conn, Jan E.; Borden, J. H.; Scott, Beth E.; Friskie, L. M.; Pierce, H. D.; Oehlschlager, A. C.

doi:10.1139/x83-045

Cited by 80 publications

(47 citation statements)

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“…3-Carene-10-ol has earlier been identified in the mountain pine beetle, Dendroctonus ponderosae (Conn et al, 1983), but the absolute configuration was not determined and the compound was not found to have any effect on field trap catches. Our results with the laboratory olfactometer and EAG also indicate that 3-carene-10-ol is not an essential attractive pheromone component in T. minor.…”

Section: Also Found Indications That (-)-(S)-trans-verbenolmentioning

confidence: 94%

Differences in attraction to semiochemicals present in sympatric pine shoot beetles,Tomicus minor andT. piniperda

Lanne

Schlyter²,

Byers³

et al. 1987

J Chem Ecol

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Abstract--The chemical ecology of host-and mate-finding in the pine shoot beetles, Tomicus minor and T. piniperda, was studied in southern Sweden. Beetles were collected in the field from defined attack phases on Scots pine. Using gas chromatography-mass spectroscopy, a number of oxygen-containing monoterpenes, e.g., 3-carene-10-ol, myrtenol, trans-verbenol, and verbenone, were identified from hindgut extracts of both sexes of both species. Compared to T. minor, T. piniperda contained additional compounds and in larger amounts. The amounts were highest in both species at the time when the beetles had bored into contact with the resin-producing xylem-phloem tissue. The synthesis of (1S,6R)-3-carene-10-ol by photooxidation of (+)-(1S,6R)-3-carene is described. In comparative electroantennogram (EAG) measurements on males and females of both species, the most active of the tested compounds was trans-verbenol. Laboratory bioassays of walking beetles showed that T. piniperda was attracted to uninfested.Pine logs. T. minor was more strongly attracted to pine logs infested with females than to uninfested pine logs, indicating a female-produced aggregation pheromone. Field tests confirmed that 7". piniperda was strongly attracted to pine logs. The attraction of T. minor to logs was significant only when logs were combined with racemic trans-verbenol and (1S,6R)-3-carene-10-ol. T. minor was also Coleoptem: Scolytidae. ~This study was made within the project "Odour signals for control of pest insects." 5Present address: VDP Laboratories, P.O. Box 1547, 1200 BM, Hilversum, The Netherlands. attracted to a combination of these monoterpene alcohols alone. We suggest that host and mate location in T. piniperda is achieved by means of a kairomone composed of host monoterpenes, while T. minor utilizes a primitive pheromone synergized by host odors. Evolution of host colonization strategies of the two beetles are discussed.

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Section: Also Found Indications That (-)-(S)-trans-verbenolmentioning

confidence: 94%

Differences in attraction to semiochemicals present in sympatric pine shoot beetles,Tomicus minor andT. piniperda

Lanne

Schlyter²,

Byers³

et al. 1987

J Chem Ecol

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“…In bark beetles, E-myrcenol of E/Z-isomer mixes, have been reported from Dendroctonus ponderosae and D. brevicomis (Renwick et al 1976;Conn 1981;Hunt et al 1986;Pierce et al 1987), L schmutzenhoferi (Francke et al 1988), and I. pini (Gries et al 1988a), L sexdentatus (W. Francke unpubl. ), and 1. grandicollis (G. Birgersson unpubl.).…”

Section: (-)-(4s)-cis-verbenol Le (Sir)-ipsenol Id (Sir)-ipsdienmentioning

confidence: 99%

The aggregation pheromone ofIps duplicatus and its role in competitive interactions withI. typographus (Coleoptera: Scolytidae)

et al. 1992

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SummaryIps duplicatus with L typographus co-inhabiting Norway spruce (Picea abies (L.) Karst.) would benefit from a pheromone blend distinct from that of the larger competitor L typographus. GC-MS analysis showed that L duplicatus males feeding in the host produced ipsdienol (Id), cis-verbenol (cV), trans-verbenol (tV), myrtenol (Mt), and Emyrcenol (EM) and traces of 2-methyl-3-buten-2-ol (MB). L duplicatus produced Id in approximately racemic form (48.9-54.5% (+)-(S)-isomer). The amounts of Id and EM released over a 9 day period had a maximum of 250 and 5 ng/h/male, respectively, on day 2. Exposure of L duplieatus males to myrcene and «-pinene resulted in the production of small amounts of Id, cV, tV, Mt, and trans-pinocarveol, but not of EM. In laboratory bioassays with walking beetles, the pheromone component Id alone was weakly attractive while EM was inactive, but in binary combination with Id strongly synergized attraction. A combination of EM and Id at a release rate equivalent to 100-200 males was more attractive in the field than 70 unmated males in a spruce log. The addition of myrcene ( a suggested pheromone precursor of Id) to Id did not enhance trap caches, while addition of EM increased catches > 10-fold. Subtracting EM from a blend of Id, EM, cV and MB drastically reduced trap catches while subtraction of cV or MB or both had no significant effect. Addition of EM over a wide concentration range to the synthetic pheromone of L typographus did not reduce the attraction of females of this species in the laboratory. A twospecies pheromone interaction field test releasing L typographus pheromone components (MB + cV) at 10-1000 male equivalents (ME) and L duplicatus pheromone (Id + EM) at 0, 10-1000 ME in all possible combinations showed both positive intraspecific dose-response effects and an interspecific inhibition. Higher release rates of EM appeared to inhibit I.typographus, especially males. In a tree colonization model, the response of the two competing species to their respective pheromones show a good separation during the mass-attack with a small initial cross-attraction. It remains to be shown whether either of the two pheromone systems have in fact evolved in the present sympatry, or if they are an incidental effect of ancestry of these phylogenetically distant Ips.

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“…In the case of bark beetles, development of semiochemical lures goes beyond identification of aggregation pheromones (Table 1) because, depending on the bark beetle species, kairomones released by host trees can be attractive alone or synergise beetle response to aggregation pheromone (Pureswaran and Borden 2005). Early investigations in British Columbia tested the attractiveness of the mountain pine beetle female-released aggregation pheromone, trans-verbenol, and the male-released aggregation pheromone, exo-brevicomin, in conjunction with six monoterpenes known to be released from the principal host of the mountain pine beetle, lodgepole pine, Pinus contorta Douglas (Pinaceae) (Conn et al 1983). These studies formed the basis for the development of commercial lures used to bait Lindgren funnel traps that released a combination of the two aggregation pheromones and the host kairomone myrcene (Borden et al 1986).…”

Section: Host Colonisation Semiochemicals For Monitoring and Control mentioning

confidence: 99%

The influence of Canadian research on semiochemical-based management of forest insect pests in Canada

Evenden

Silk²

2015

Can Entomol

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Abstract-Insects use semiochemicals to mediate important behaviours such as mating, oviposition, and foraging for resources. Chemical ecology research aims to identify these message-bearing chemicals and develop synthetic copies of semiochemicals for use in integrated pest management (IPM). There has been, and continues to be, an extensive research effort to understand the chemical ecology of various insects considered to be pests of forests in Canada. Canadian chemical ecology research has had an impact on IPM of forest insect pests in Canada and around the world. Canadian researchers have been involved in the identification of semiochemicals used by forest insects and the development and implementation of semiochemical-based management tactics for forest pest management. Semiochemicals have been incorporated into forest pest management for a variety of insect taxa primarily as tools to monitor and control forest insect pests in Canada. The goals of the current review are to: (1) highlight research conducted on semiochemical-based management of forest pests in Canada; (2) discuss the current and potential uses of semiochemicals in IPM of forest pests in Canada; and (3) evaluate potential areas for increased research and implementation of semiochemicals into the management of forest pests in Canada.

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Semiochemicals for the mountain pine beetle, Dendroctonusponderosae (Coleoptera: Scolytidae) in British Columbia: field trapping studies

Cited by 80 publications

References 0 publications

Differences in attraction to semiochemicals present in sympatric pine shoot beetles,Tomicus minor andT. piniperda

Differences in attraction to semiochemicals present in sympatric pine shoot beetles,Tomicus minor andT. piniperda

The aggregation pheromone ofIps duplicatus and its role in competitive interactions withI. typographus (Coleoptera: Scolytidae)

The influence of Canadian research on semiochemical-based management of forest insect pests in Canada

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