Red Turpentine Beetle Dendroctonus valens LeConte

Lü, Min; Sun, Jianghua

doi:10.1007/978-94-024-0948-2_11

Cited by 5 publications

(6 citation statements)

References 21 publications

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“…Kairomone lures have been used to detect, monitor, or manipulate invasive D . valens populations in China [ 42 ], and would be an important tool for managing reintroduced beetles to North American forests carrying novel forest pathogens. 3-Carene, α-pinene and β-pinene have been the focus of most D .…”

Section: Introductionmentioning

confidence: 99%

Red turpentine beetle primary attraction to (–)-β-pinene+ethanol in US Pacific Northwest ponderosa pine forests

Kelsey

Westlind

2020

PLoS ONE

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Red turpentine beetle, Dendroctonus valens (Coleoptera: Curculionidae: Scolytinae) is a non-aggressive pine bark beetle native to North America, and more aggressive invader in China. Dispersing pioneer beetles are attracted to potential host trees by oleoresin monoterpene kairomones, but respond more strongly to those combined with ethanol, a mixture often released from stressed, dying, or recently dead trees. (+)-3-Carene, usually the dominant or co-dominant monoterpene in ponderosa pine, Pinus ponderosa, is a stronger attractant than α-pinene or β-pinene where tested over a large portion of the D. valens range, while (+)-3-carene+ethanol was shown previously to attract twice the beetles of (+)-3-carene. A field test comparing D. valens attraction among the three monoterpenes when all are released with ethanol has never been reported, and was our objective. In three US Pacific Northwestern pine forests, (-)-β-pinene+ethanol lures attracted 1.4 to 1.9 times more beetles than (+)-3-carene+ethanol. (+)-or (±)-α-pinene+ethanol lures were least attractive. A 1:1:1 monoterpene mixture+ethanol lure attracted more beetles than the 1:1:1 lure, but it was not statistically higher. Monoterpenes were dispensed from low density polyethylene bottles and their release rates monitored in laboratory and field tests. Under laboratory conditions (+)-3-carene was released much more rapidly than (+)-α-pinene or (-)-β-pinene when dispensed separately, or in a 1:1:1 mixture. (+)-3-Carene in the 1:1:1 mixture increased the release of both pinenes over their rates when dispensed separately. (-)-β-Pinene+ethanol is currently the strongest kairomone lure for D. valens attraction in US northwest pine forests, and has value for beetle detection, monitoring, research, and management.

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Section: Introductionmentioning

confidence: 99%

Red turpentine beetle primary attraction to (–)-β-pinene+ethanol in US Pacific Northwest ponderosa pine forests

Kelsey

Westlind

2020

PLoS ONE

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“…A need to manage or manipulate D. valens was minimal prior to its invasion and population outbreak in China where their vectored microbial symbionts may contribute to a more aggressive behaviour (Lu et al, 2009a(Lu et al, , b, 2010(Lu et al, , 2011Taerum et al, 2013;Xu et al, 2016;Cheng et al, 2018) and extensive mortality of Chinese red pine (Yan et al, 2005;Sun et al, 2013;Lu & Sun, 2017). In native forests, D. valens is one of the first beetles attacking fire damaged pines (Ganz et al, 2003;Kelsey & Westlind, 2017b), but it does not contribute substantially to post-burn tree mortality (Fettig et al, 2008;Owen et al, 2010;Negrón et al, 2016;Westlind & Kelsey, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Monoterpene lures have been used for detection, monitoring, research, and management of invasive D. valens in China (Sun et al, 2013;Lu & Sun, 2017), and they will be useful for similar purposes if these beetles are reintroduced to American forests. Determining what monoterpene structural features contribute to D. valens attraction has value for improving lures and understanding relationships between kairomone structures and bark beetle attraction.…”

Section: Introductionmentioning

confidence: 99%

Key structural features in cis‐carane, (+)‐3‐carene, cis‐pinane, (+)‐α‐pinene, and (−)‐β‐pinene influencing red turpentine beetle primary attraction when released with ethanol

Kelsey

Westlind

2020

Agri and Forest Entomology

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In US Pacific Northwest ponderosa pine forests the primary attraction order shown previously for red turpentine beetle, Dendroctonus valens (Coleoptera: Curculionidae: Scolytinae), is (−)-β-pinene+ethanol > (+)-3-carene+ethanol > (+)-α-pinene+ethanol. The monoterpenes are bicyclic C 10 H 16 isomers containing one 6-carbon ring with one double bond. Both pinenes have a 4-carbon second ring and differ only by their endocyclic or exocyclic double bond. The (+)-3-carene second ring has 3-carbons; its double bond is endocyclic like (+)-α-pinene. 2 Ring system and double bond influences on primary attraction were evaluated by hydrogenating (+)-3-carene and (+)-α-pinene to cis-carane and cis-pinane, respectively. Field test primary attraction strengths were (−)-β-pinene+ethanol > cis-carane+ethanol > cis-pinane+ethanol > ethanol. 3 In combination with ethanol (i) a double bond is not required in either ring system to attract D. valens, (ii) the cis-carane bicyclic 3, 6-carbon ring system provides stronger beetle attraction than the cis-pinane 4, 6-carbon bicyclic ring system, and likely structural basis for stronger (+)-3-carene attraction over (+)-α-pinene, (iii) adding an exocyclic double bond to the 4, 6-carbon ring system elevates attraction above the 3, 6-carbon ring system with no double bond, and (iv) the 4, 6-carbon ring system is a much stronger attractant with an exocyclic rather than endocyclic double bond.

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“…This is mainly unintentional introduction; transported seedlings and their propagation materials carry 46% of human activity-generated invaders, with packaging materials or wood accounting for 21% (National Bureau of Statistics, http://www.stats.gov.cn/tjsj/tjgb/ ndtjgb/) [8]. Some major invasive species, such as the North American bark beetle Dendroctonus valens, fall webworm Hyphantria cunea and loblolly pine mealybug Oracella acuta, have already caused the destruction of forestry resources in China, negatively influencing species diversity and ecological security, and resulting in major economic loss [9][10][11]. In order to monitor and manage the invasion of a pest, including possible biocontrol by natural enemies as well as the prevention of further introductions, it is essential to figure out its invasion history.…”

Section: Introductionmentioning

confidence: 99%

Invasion History of Sirex noctilio Based on COI Sequence: The First Six Years in China

Sun

Tao

Roques

et al. 2020

Insects

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Sirex noctilio F. (Hymenoptera: Siricidae: Siricinae), a new invasive species in China, is a significant international forestry pest which, transported via logs and related wood packing materials, has led to environmental damage and substantial economic loss in many countries around the world. It was first detected in China in 2013, and since then infestations have been found in 18 additional sites. Using a 322 bp fragment of the mitochondrial barcode gene COI, we studied the genetic diversity and structure of S. noctilio populations in both native and invaded ranges, with a specific focus in China. Twelve haplotypes were found across the native and invaded distribution of the pest, of which three were dominant; among these there were only one or two mutational steps between each pair of haplotypes. No obvious genetic structure was found other than in Chinese populations. China has a unique and dominant haplotype not found elsewhere, and compared with the rest of the world, the genetic structure of Chinese populations suggested a multiple invasion scenario.

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Red Turpentine Beetle Dendroctonus valens LeConte

Cited by 5 publications

References 21 publications

Red turpentine beetle primary attraction to (–)-β-pinene+ethanol in US Pacific Northwest ponderosa pine forests

Red turpentine beetle primary attraction to (–)-β-pinene+ethanol in US Pacific Northwest ponderosa pine forests

Key structural features in cis‐carane, (+)‐3‐carene, cis‐pinane, (+)‐α‐pinene, and (−)‐β‐pinene influencing red turpentine beetle primary attraction when released with ethanol

Invasion History of Sirex noctilio Based on COI Sequence: The First Six Years in China

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