Distribution and attack behaviour of the red turpentine beetle, Dendroctonus valens, recently introduced to China

Gao, Bingtao; Wen, Xiao; Guan, Hang; Knı́žek, Miloš; Žďárek, Jan

doi:10.17221/4554-jfs

Cited by 7 publications

(2 citation statements)

References 4 publications

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“…Invasive bark and ambrosia beetles (Curculionidae: Scolytinae and Platypodinae) are an increasing problem in many parts of the world (e.g. Haack, 2003Haack, , 2006Gao et al, 2005;Alfaro et al, 2007;Kirkendall & Odegaard, 2007;Wood, 2007;Kirkendall & Faccoli, 2010;Hulcr & Dunn, 2011), and can be responsible for major economic damage to forests, plantations and orchards. These beetles are usually closely associated with fungi, which may be pathogenic causing tree mortality (e.g.…”

Section: Introductionmentioning

confidence: 99%

Report of a pest risk analysis for Platypus parallelus (Fabricus, 1801) for Turkey

Gümüş¹,

Ergün²

2015

EPPO Bulletin

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Invasive bark and ambrosia beetles (Curculionidae: Scolytinae and Platypodinae) are increasingly responsible for damage to forests, plantations and orchards worldwide. They are usually closely associated with fungi, which may be pathogenic causing tree mortality. Stressed or weakened trees are particularly subject to attack, as is recently felled, non‐treated wood. This PRA report concerns the ambrosia beetle Platypus parallelus (Euplatypus parallelus, Fabricus, 1801) (Coleoptera: Scolytidae), which was detected in official controls. The PRA area is Turkey. P. parallelus is not on the A1 or A2 list for Turkey but the Regulation on Plant Quarantine (3 December 2011‐OJ no: 28131) Article 13 (5) indicates that pests which are assessed to pose a risk for Turkey following PRA that are not present in the above lists and plants, wood, plant products and other materials contaminated by these organisms are banned from entry into Turkey. This risk assessment follows the EPPO Standard PM 5/3(5) Decision‐support scheme for quarantine pests and uses the terminology defined in ISPM 5 Glossary of Phytosanitary Terms. This paper addresses the possible risk factors caused by Platypus parallelus (Euplatypus parallelus, Fabricus, 1801) in Turkey.

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Section: Introductionmentioning

confidence: 99%

Report of a pest risk analysis for Platypus parallelus (Fabricus, 1801) for Turkey

Gümüş¹,

Ergün²

2015

EPPO Bulletin

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“…Beyond a critical attack density threshold, host tree defenses are exhausted (e.g., monoterpenes defense), resulting in beetle establishment ( Raffa and Berryman, 1983 ; Guérard et al, 2000 ). Beetles with low attack density are unable to colonize the trees and are typically killed by host pine defenses ( Hedden and Pitman, 1978 ; Gao et al, 2005 ). Gut bacteria of D. valens have been shown to degrade host defensive monoterpenes in vitro and affect carbohydrate allocation in the consumed host tissue to benefit larval development ( Xu et al, 2016a ; Zhou et al, 2016 ), both of which influence bacterial community structure.…”

Section: Introductionmentioning

confidence: 99%

Gut Bacterial Communities of Dendroctonus valens and Monoterpenes and Carbohydrates of Pinus tabuliformis at Different Attack Densities to Host Pines

Zhou

et al. 2018

Front. Microbiol.

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Insects harbor a community of gut bacteria, ranging from pathogenic to obligate mutualistic organisms. Both biotic and abiotic factors can influence species composition and structure of the insect gut bacterial communities. Dendroctonus valens is a destructive forest pest in China. To overcome host pine defenses, beetles mass-attack the pine to a threshold density that can exhaust pine defenses. The intensity of pine chemical defenses and carbohydrate concentrations of pines can be influenced by beetle attack, both of which are known factors that modify beetle’s gut microbiota. However, little is known to what extent variation exists in the beetle’s gut communities, and host monoterpenes and carbohydrates at different attack densities. In this study, the gut bacterial microbiota of D. valens at low and high attack densities were analyzed, and monoterpenes and carbohydrates in host pine phloem were assayed in parallel. The results showed that no significant changes of gut bacterial communities of the beetles and concentrations of D-glucose, D-pinitol, and D-fructose in pine phloem were found between low and high attack densities. The concentrations of α-pinene, β-pinene, limonene at high attack densities were significantly higher than those at low attack densities. Our results suggested that different attack densities of D. valens influence monoterpenes concentration of host pines’ phloem but have no significant impact on gut bacterial community structures of D. valens and carbohydrate concentration of host trees’ phloem in early attack phase. Similar gut bacterial community structures of D. valens between low and high attack densities might be due to the quick adaptation of gut microbiota to high monoterpenes concentrations.

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Price integration for domestic and imported sawlogs and pulpwood in Finland: an update

Kuuluvainen

Korhonen

et al. 2017

Scandinavian Journal of Forest Research

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Distribution and attack behaviour of the red turpentine beetle, Dendroctonus valens, recently introduced to China

Cited by 7 publications

References 4 publications

Report of a pest risk analysis for Platypus parallelus (Fabricus, 1801) for Turkey

Report of a pest risk analysis for Platypus parallelus (Fabricus, 1801) for Turkey

Gut Bacterial Communities of Dendroctonus valens and Monoterpenes and Carbohydrates of Pinus tabuliformis at Different Attack Densities to Host Pines

Price integration for domestic and imported sawlogs and pulpwood in Finland: an update

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