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Stephen, F. M.; Salisbury, Vaughn B.; Oliveria, F. L.

doi:10.1023/a:1025779520102

Cited by 63 publications

(3 citation statements)

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“…Summer drought in 1998Summer drought in -2001 was also identified as a probable factor in this widespread oak mortality event (Starkey et al 2004), although no empirical evidence exists to support this theory. Apparently concurrent with this oak decline event was an eruptive outbreak of a unique secondary invader, the red oak borer (Enaphalodes rufulus (Haldeman)) (Stephen et al 2001). This wood-boring beetle was not previously known as an eruptive species where large populations were evidenced by densities of fewer than 10 beetles per tree (Hay 1974) compared with hundreds found per tree during this recent outbreak (Fierke et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Temporal aspects ofQuercus rubradecline and relationship to climate in the Ozark and Ouachita Mountains, Arkansas

2011

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Extreme climate events are frequently important factors associated with episodes of forest decline. A recent oak decline event and concurrent outbreak of a native wood-boring beetle, the red oak borer (Enaphalodes rufulus (Haldeman)), occurred throughout Arkansas Ozark and Ouachita Mountains. To investigate the role of drought and stand maturity on northern red oak (Quercus rubra L.) decline, we analyzed tree-ring growth patterns and their relationships to climate from 815 live and 161 recently dead Q. rubra. While younger Q. rubra exhibited faster growth rates and stronger climate relationships than older Q. rubra, some individuals within all stands that originated >60 years ago were susceptible to growth decline or mortality. A significant growth interaction occurred among the three age classes identified where currently healthy Q. rubra were initially growing at slower decadal rates than currently declining or recently dead Q. rubra and later transitioned to higher growth rates than the others. These differences appear to be related to carbon allocation patterns towards rapid aboveground and (or) belowground growth early in development that led to later decline and (or) mortality. Decline in growth and weakening tree growth -climate relationships appeared to be initiated by an unusually severe and sustained drought in the early 1950s.Résumé : Les conditions climatiques extrêmes se retrouvent souvent parmi les principaux facteurs associés aux épisodes de dépérissement des forêts. Un épisode récent de dépérissement du chêne et une épidémie simultanée du grand longicorne du chêne rouge (Enaphalodes rufulus (Haldeman), un cérambycidé indigène, sont survenus dans les monts Ozark et Ouachita en Arkansas. Pour étudier le rôle de la sécheresse et de la maturité des peuplements sur le dépérissement du chêne rouge (Quercus rubra L.), nous avons analysé les patrons de croissance des cernes annuels et leurs relations avec le climat chez 815 tiges vivantes et 161 tiges mortes récemment de Q. rubra. Alors que la croissance des jeunes Q. rubra était plus rapide et plus étroitement reliée au climat que celle des plus vieux Q. rubra, certains individus dans tous les peuplements qui avaient plus de 60 ans étaient sujets à une diminution de croissance ou à la mort. Parmi les trois classes d'âge identifiées, il y avait une interaction significative dans le cas de la croissance : les Q. rubra présentement en santé ont initialement eu un taux de croissance décennal plus faible que les Q. rubra actuellement dépérissants ou morts récemment et ont par la suite connu un taux de croissance plus élevé que les autres. Ces différences semblent être reliées aux patrons d'allocation du carbone vers les zones aériennes ou souterraines de croissance rapide tôt dans le développement, ce qui a plus tard entraîné le dépérissement ou à la mort. Le déclin de la croissance et l'affaiblissement des relations entre le climat et la croissance des arbres ont semblé être initiés par une sécheresse exceptionnellement sévère et prolongée au début des année...

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Section: Introductionmentioning

confidence: 99%

Temporal aspects ofQuercus rubradecline and relationship to climate in the Ozark and Ouachita Mountains, Arkansas

2011

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“…Field infestations were first reported in Yates County, New York and Cumberland County, Pennsylvania in 1874 (Anonymous, 1887a(Anonymous, , 1887bRiley, 1879). Since then it has been reported from Iowa in 1914 (Butler, 1914), Michigan in 1918 (Graham, 1937), Indiana in 1941 (Giese & Knauer, 1977), Wisconsin in 1951(WIDNR, 1951, west Arkansas and east Oklahoma in 1962(USDA Forest Service, 1962), Minnesota in 1969(MNDNR, 1969), West Virginia in 1973(CSLP, 1973), Maryland in 1977(USDA Forest Service, 1977, Missouri in 2001 (Stephen et al, 2001), and Bedford and Fulton counties in Pennsylvania in 2002 (PADCNR, 2002) (Figures 1 and 5).…”

Section: Is Tributi On and Outb Re Ak Smentioning

confidence: 99%

“…About 4 ha F I G U R E 3 Diapheromera femorata damage to host plants: (a) feeding on dryland blueberry bush, (b) defoliation on black cherry trees, (c) defoliated chestnut oak tree branch, (d) defoliated black cherry tree seedling, (e) high numbers of D. femorata feeding on chestnut oak tree, and (f) feeding damage on pignut hickory tree [Colour figure can be viewed at wileyonlinelibrary.com] and hackberry (Celtis occidentalis L.) trees were completely defoliated in the Knobly Mountains in West Virginia in 1973(CSLP, 1973), while small infestations were recorded inMaryland and West Virginia in 1977 (USDA Forest Service, 1977). Other outbreaks were recorded inMissouri in 2001and 2006(Stephen et al, 2001 Doerhoff, personal communication) and Pennsylvania in 2002 (PADCNR, 2002). The most recent known outbreaks were reported from Maryland in 2011 (Burr, personal communication) and northern Arkansas in 2018 and 2019(ARDP, 2018(ARDP, , 2019.…”

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confidence: 99%

Biology and ecology of the Northern walkingstick, Diapheromera femorata (Say) (Phasmatodea: Diapheromerinae): A review

Liu

2021

J Applied Entomology

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The northern walkingstick, Diapheromera femorata (Say), is the only stick insect of economic importance native to the United States. Young nymphs feed on various understory shrubs and trees whereas older nymphs and adults prefer oaks and cherries. Occasionally, field populations reach outbreak levels and cause complete tree defoliation. Widespread damage rarely occurs except those reported from Michigan

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Presence and roles of myrtenol, myrtanol and myrtenal in Dendroctonus armandi (Coleoptera: Curculionidae: Scolytinae) and Pinus armandi (Pinales: Pinaceae: Pinoideae)

Zhao

Liu

Sun

et al. 2019

Pest Management Science

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BACKGROUND Insect pheromones and host volatiles are important for pest control due to their high efficiency and low potential for environmental pollution. The functions of myrtenol, myrtanol and myrtenal in pest–host interactions are unknown. This study aimed to determine the presence of myrtenol, myrtanol and myrtenal in newly emerged and emerged stages of Dendroctonus armandi, and in infected and healthy Pinus armandi, and to identify their roles in tree protection and pest management based on electroantennography (EAG), Y‐tube and toxicity experiments. RESULTS Gas chromatographic and mass spectrometry (GC–MS) analyses, EAG, Y‐tube and toxicity assays revealed the following: (1) myrtenol was found in P. armandi phloem and did not exhibit significant toxicity towards D. armandi; (2) myrtanol was produced by infected P. armandi after D. armandi invasion and had significant toxicity towards D. armandi, especially females; and (3) myrtenal might represent an aggregation pheromone produced by female D. armandi to exert aggregation effects on other females, to help them overcome the resistance of P. armandi jointly and ensure a successful invasion, females remained in an aggregation state from leaving the host to mating in a new host. CONCLUSION These findings suggest that myrtanol as a repellent has potential for the protection of P. armandi and that myrtenal could be used to trap and disorient D. armandi. © 2019 Society of Chemical Industry

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Cited by 63 publications

References 10 publications

Temporal aspects ofQuercus rubradecline and relationship to climate in the Ozark and Ouachita Mountains, Arkansas

Temporal aspects ofQuercus rubradecline and relationship to climate in the Ozark and Ouachita Mountains, Arkansas

Biology and ecology of the Northern walkingstick, Diapheromera femorata (Say) (Phasmatodea: Diapheromerinae): A review

Presence and roles of myrtenol, myrtanol and myrtenal in Dendroctonus armandi (Coleoptera: Curculionidae: Scolytinae) and Pinus armandi (Pinales: Pinaceae: Pinoideae)

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