Semiochemicals in the Natural History of Southern Pine Beetle Dendroctonus frontalis Zimmermann and Their Role in Pest Management

Sullivan, Brian

doi:10.1016/bs.aiip.2015.12.002

Cited by 25 publications

(31 citation statements)

References 212 publications

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“…It is possible that lowering the release rate of the endo -brevicomin device placed directly on the trap would likewise have reduced the proportion of the bycatch species. An endo -brevicomin dose-response study (with endo -brevicomin devices located on the traps and trapping methodology otherwise similar to the present study; Sullivan 2016 , authors’ unpublished data) suggested that slightly lowering the release rate of endo -brevicomin from than that used in the present study might significantly increase D. frontalis and decrease H. pruinosus catches. However, in this aforementioned study, at the most attractive release rate of endo -brevicomin for D. frontalis (approximately 0.16 mg/d), the ratio of trapped H. pruinosus to D. frontalis was still nearly 1:1.…”

Section: Discussionsupporting

confidence: 66%

Spatial Displacement of a Lure Component Can Reduce Catches of Two Nontarget Species During Spring Monitoring of Southern Pine Beetle

Shepherd

Sullivan

2017

Journal of Insect Science

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Local outbreak risk for the southern pine beetle, Dendroctonus frontalis Zimmermann (Coleoptera: Curculionidae), is forecast with a trapping survey conducted every spring throughout the southeastern United States. Traps baited with pine odors and components of the D. frontalis aggregation pheromone are used to obtain abundance estimates of both this species and its clerid predator Thanasimus dubius (F.) (Coleoptera: Cleridae); these data are entered into a predictive model that estimates outbreak risk. An attractant synergist for D. frontalis, endo-brevicomin, has recently been included in the survey lure, but it can have the unintended effect of attracting nontarget species Hylesinus pruinosus Eichhoff (Coleoptera: Curculionidae: Scolytinae) and Enoclerus nigripes (Say) (Coleoptera: Cleridae) which, due to their sometimes large numbers and general similarity in appearance to the target species, could complicate sorting and counting of trap catches. Analysis of bycatch data from a previously-published, 31-mo trapping study in Mississippi indicated that displacement of the endo-brevicomin releaser 6 m from the trap largely eliminated catches of the nontarget species H. pruinosus and E. nigripes while not reducing catches of the target species D. frontalis and T. dubius. Our analysis demonstrates that interspecific differences in spatial responses to attractive semiochemicals can be used to improve insect trap selectivity. Both nontarget beetle species were captured in highest numbers during late winter/early spring, coinciding with the D. frontalis survey.

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Section: Discussionsupporting

confidence: 66%

Spatial Displacement of a Lure Component Can Reduce Catches of Two Nontarget Species During Spring Monitoring of Southern Pine Beetle

Shepherd

Sullivan

2017

Journal of Insect Science

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“…Hence, the metabolic activity previous to this time is probably dedicated to the detoxification process. Moreover, the colonization progress requires different types of pheromone components for aggregation or anti-aggregation, thus diverse enzymes are needed at each colonization stage, and such transition may have an effect on the gene expression levels of the involved genes (Sullivan et al 2016). Nevertheless, biochemical studies of heterologous expression should demonstrate the degree of specificity of these CYP on terpenes in D. rhizophagus , as well as their capacity to hydroxylate these compounds to trans -verbenol.…”

Section: Discussionmentioning

confidence: 99%

Time-Course of CYP450 Genes Expression From Dendroctonus rhizophagus (Curculionidae: Scolytinae) During Early Hours of Drilling Bark and Settling Into the Host Tree

Sarabia

López

Pineda-Mendoza

et al. 2019

Journal of Insect Science

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Dendroctonus bark beetles (Scolytinae) are one of the most important disturbance agents of coniferous forests in North and Central America. These beetles spend their lives almost entirely under the tree bark, and their survival and reproductive success depend on their ability to overcome the toxic effect of the trees’ oleoresin. The cytochromes P450 (CYPs) are associated with the detoxification process of xenobiotics, as well as other physiological processes. Different cytochromes (families 4, 6, and 9) in the Dendroctonus species have been expressed under several experimental conditions; nevertheless, the expression time-course of these genes is unknown. To explore the induction speed of CYPs , we evaluated the relative expression of the CYP6BW5 , CYP6DG1 , CYP6DJ2 , CYP9Z18 , and CYP9Z20 genes at the early hours of drilling and settling into a tree (1, 2, 4, 6, 8, 12, 18 h) both in females and males, solitary or paired, of the bark beetle Dendroctonus rhizophagus Thomas and Bright. Our findings show that the five genes were rapidly overexpressed in the early hours (1 to 6 h) in both sexes and in solitary and paired conditions, suggesting their participation in the detoxification process. Additionally, the CYPs expression shows up- and down-regulation patterns through these short times, suggesting their probable participation in other physiological processes as the biosynthesis of hormones, pheromones or compounds related to reproduction.

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“…The results reported here may have broader implications for understanding pheromone production in other destructive Dendroctonus species that produce trans -verbenol as an aggregation, antiaggregation, or synergist component in their communication systems. These include the southern pine beetle ( Dendroctonus frontalis ) ( 43 ), western pine beetle ( D. brevicomis ) ( 44 ), and the red turpentine beetle ( D. valens ) ( 33 ), which cause damage across forests in North America and Asia.…”

Section: Discussionmentioning

confidence: 99%

Monoterpenyl esters in juvenile mountain pine beetle and sex-specific release of the aggregation pheromone trans -verbenol

Chiu

Keeling

Bohlmann

2018

Proc. Natl. Acad. Sci. U.S.A.

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Significancetrans-Verbenol is a critical aggregation pheromone of the female mountain pine beetle. It is derived from a compound of the host defense, the monoterpene α-pinene. We found that beetles accumulate monoterpenyl esters during early life stages. These may serve as a previously unknown reservoir for the sex-specific release of aggregation pheromone when female beetles synchronize the mass colonization of a new host tree. The improved knowledge of the mountain pine beetle pheromone system can inform prediction of bark beetle outbreaks and invasion of new habitats.

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Semiochemicals in the Natural History of Southern Pine Beetle Dendroctonus frontalis Zimmermann and Their Role in Pest Management

Cited by 25 publications

References 212 publications

Spatial Displacement of a Lure Component Can Reduce Catches of Two Nontarget Species During Spring Monitoring of Southern Pine Beetle

Spatial Displacement of a Lure Component Can Reduce Catches of Two Nontarget Species During Spring Monitoring of Southern Pine Beetle

Time-Course of CYP450 Genes Expression From Dendroctonus rhizophagus (Curculionidae: Scolytinae) During Early Hours of Drilling Bark and Settling Into the Host Tree

Monoterpenyl esters in juvenile mountain pine beetle and sex-specific release of the aggregation pheromone trans -verbenol

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