THE AMBROSIA FUNGUS OF <i>XYLOSANDRUS GERMANUS</i> (COLEOPTERA: SCOLYTIDAE)

Weber, B. C.; McPherson, J. E.

doi:10.4039/ent116281-2

Cited by 47 publications

(56 citation statements)

References 7 publications

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“…It has become a serious forest pest in many countries regardless of whether it is native or exotic in those countries (e.g. Kaneko et al 1965;Nobuchi 1981;Weber & McPherson 1983, 1984Grégoire et al 2001). Some Scolytinae beetles have a flying range of 10 to 15 km (Berryman 1982;Wood 1982;Gries 1985).…”

Section: Introductionmentioning

confidence: 99%

Genetic structure of Japanese populations of an ambrosia beetle, Xylosandrus germanus (Curculionidae: Scolytinae)

Ito

Kajimura

Hamaguchi

et al. 2008

Entomological Science

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We examined the genetic structures of 13 Japanese populations of an ambrosia beetle, Xylosandrus germanus (Curculionidae: Scolytinae), to understand the effects of geographical barriers on the colonization dynamics of this species. The genetic structure was studied using portions of the mitochondrial cytochrome oxidase I (COI) gene. A phylogenetic analysis revealed three distinct lineages (clades A, B and C) within X. germanus. Clade A contained 21 haplotypes from all 13 populations; whereas clade B contained eight haplotypes from Hokkaido (Sapporo and Furano), Iwate and Nagano populations; and clade C contained only a single a haplotype from the Hokkaido (Furano) population. In the analysis of molecular variance (amova), the greatest amount of genetic variation was detected between populations in Hokkaido and those in Honshu and other southern islands. Between these two groups of populations, all the values of the coefficient of gene differentiation were significantly larger than zero, except for the Hokkaido (Sapporo) versus Nagano comparison. Our results confirm that for X. germanus, gene flow has been interrupted between Hokkaido and Honshu since the last glacial maximum.

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Section: Introductionmentioning

confidence: 99%

Genetic structure of Japanese populations of an ambrosia beetle, Xylosandrus germanus (Curculionidae: Scolytinae)

Ito

Kajimura

Hamaguchi

et al. 2008

Entomological Science

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“…Both X germanus and X crassiusculus are capable of attacking a wide range of hosts including Ͼ200 and 120 species, respectively, but deciduous hosts are preferred over coniferous tree species (Schedl 1962, Weber andMcPherson 1983). Some of the more common hosts in ornamental nurseries include dogwood (Cornus spp.…”

mentioning

confidence: 99%

Interruption of the Semiochemical-Based Attraction of Ambrosia Beetles to Ethanol-Baited Traps and Ethanol-Injected Trap Trees by Verbenone

et al. 2013

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We examined the extent to which verbenone, a bark beetle antiaggregation pheromone, interrupted the semiochemical-based attraction of ambrosia beetles. Field trapping studies conducted in Ohio showed that a verbenone dispenser with a release rate of 50 mg/d at 25°C reduced the attraction of Anisandrus sayi Hopkins, Euwallacea validus (Eichhoff), Hypothenemus dissimilis (Zimmermann), Xylosandrus germanus (Blandford), and Xyleborinus saxesenii (Ratzeburg) to ethanol-baited traps. A verbenone dispenser attached to ethanol-injected Magnolia virginiana L. trap trees deployed in Ohio also reduced ambrosia beetle attacks compared to trap trees without a verbenone dispenser. Subsequent field trials demonstrated a direct relationship between distance from a verbenone dispenser and ambrosia beetle attacks on trap trees in Ohio in 2011 and 2012 and Tennessee in 2012, but not in Tennessee and Virginia in 2011. Assessment of the influence of verbenone on the probability of attacks above a density threshold found that although attacks occurred on trap trees regardless of their proximity to a verbenone dispenser, the higher density of attacks per tree occurred on trap trees farthest away from the verbenone source in Ohio and Tennessee. Verbenone alone could be somewhat useful for discouraging ambrosia beetle attacks on individual trees or on a small spatial scale, but deployment of verbenone might be most effective when integrated as part of a "push-pull" strategy.

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“…Foundress beetles tunnel into trees and inoculate their brood gallery with a symbiotic fungus, which is then consumed by adults and larvae (Biedermann & Taborsky 2011). These primary fungal symbionts, as well as secondary fungal pathogens, contribute to host plant mortality (Weber & McPherson 1984;Kuhnholz et al 2001). Larval development of ambrosia beetles is completed within the gallery, and newly-eclosed, mated females disperse to new tree hosts (Weber & McPherson 1984).…”

Section: Introductionmentioning

confidence: 99%

“…These primary fungal symbionts, as well as secondary fungal pathogens, contribute to host plant mortality (Weber & McPherson 1984;Kuhnholz et al 2001). Larval development of ambrosia beetles is completed within the gallery, and newly-eclosed, mated females disperse to new tree hosts (Weber & McPherson 1984). Although ambrosia beetles invading ornamental nurseries were presumed to originate from peripheral forested areas, few studies have fully investigated invasion source.…”

Section: Introductionmentioning

confidence: 99%

Ambrosia Beetle (Coleoptera: Curculionidae: Scolytinae) Captures Using Colored Traps in Southeast Tennessee and South Mississippi

Werle¹,

Bray²,

Oliver³

et al. 2014

Journal of Entomological Science

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THE AMBROSIA FUNGUS OF XYLOSANDRUS GERMANUS (COLEOPTERA: SCOLYTIDAE)

Cited by 47 publications

References 7 publications

Genetic structure of Japanese populations of an ambrosia beetle, Xylosandrus germanus (Curculionidae: Scolytinae)

Genetic structure of Japanese populations of an ambrosia beetle, Xylosandrus germanus (Curculionidae: Scolytinae)

Interruption of the Semiochemical-Based Attraction of Ambrosia Beetles to Ethanol-Baited Traps and Ethanol-Injected Trap Trees by Verbenone

Ambrosia Beetle (Coleoptera: Curculionidae: Scolytinae) Captures Using Colored Traps in Southeast Tennessee and South Mississippi

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