| spatio-temporal analysis of xyleborus glabratus (coleoptera: curculionidae [corrected] scolytinae) invasion in eastern u.s. forests. | the non-native redbay ambrosia beetle, xyleborus glabratus eichhoff (coleoptera: curculionidae: scolytinae), has recently emerged as a significant pest of southeastern u.s. coastal forests. specifically, a fungal symbiont (raffaelea sp.) of x. glabratus has caused mortality of redbay (persea borbonia) and sassafras (sassafras albidum) trees in the region; several other lauraceae species also seem susceptible. although the range of x. glabratus continues to expand rapidly, little is known about t ... | 2008 | 18419916 |
| biology and host associations of redbay ambrosia beetle (coleoptera: curculionidae: scolytinae), exotic vector of laurel wilt killing redbay trees in the southeastern united states. | the redbay ambrosia beetle, xyleborus glabratus eichhoff (coleoptera: curculionidae: scolytinae), and its fungal symbiont, raffaelea sp., are new introductions to the southeastern united states responsible for the wilt of mature redbay, persea borbonia (l.) spreng., trees. in 2006 and 2007, we investigated the seasonal flight activity of x. glabratus, its host associations, and population levels at eight locations in south carolina and georgia where infestations ranged from very recent to at lea ... | 2008 | 18767737 |
| quantification of propagules of the laurel wilt fungus and other mycangial fungi from the redbay ambrosia beetle, xyleborus glabratus. | the laurel wilt pathogen, raffaelea lauricola, is a fungal symbiont of the redbay ambrosia beetle, xyleborus glabratus, which is native to asia and was believed to have brought r. lauricola with it to the southeastern united states. individual x. glabratus beetles from six populations in south carolina and georgia were individually macerated in glass tissue grinders and serially diluted to quantify the cfu of fungal symbionts. six species of raffaelea were isolated, with up to four species from ... | 2010 | 20839947 |
| effect of trap type, trap position, time of year, and beetle density on captures of the redbay ambrosia beetle (coleoptera: curculionidae: scolytinae). | the exotic redbay ambrosia beetle, xyleborus glabratus eichhoff (coleoptera: curculionidae: scolytinae), and its fungal symbiont raffaellea lauricola harrington, fraedrich, and aghayeva are responsible for widespread redbay, persea borbonia (l.) spreng., mortality in the southern united states. effective traps and lures are needed to monitor spread of the beetle and for early detection at ports-of-entry, so we conducted a series of experiments to find the best trap design, color, lure, and trap ... | 2011 | 21510198 |
| xyleborus glabratus, x. affinis, and x. ferrugineus (coleoptera: curculionidae: scolytinae): electroantennogram responses to host-based attractants and temporal patterns in host-seeking flight. | the redbay ambrosia beetle, xyleborus glabratus eichhoff, is an exotic wood-boring insect that vectors the mycopathogen responsible for laurel wilt, a lethal vascular disease of trees in the lauraceae, including avocado (persea americana mill.). effective semiochemical-based detection and control programs for x. glabratus will require an understanding of the chemical ecology and host-seeking behaviors of this new invasive pest. this study 1) presents an electroantennography (eag) method develope ... | 2012 | 23321108 |
| chemotyping the temporal volatile organic compounds of an invasive fungus to the united states, raffaelea lauricola. | volatile organic compounds (vocs) in the headspace of the fungus raffaelea lauricola have been monitored and identified over a twenty-eight day growth period. r. lauricola is an invasive and phytopathogenic fungus that was first identified in the united states in the mid-2000s. it is believed to be spread by a host beetle, xyleborus glabratus, and is detrimental both to wild members of the lauraceae family and to commercial avocado groves particularly in the southeastern region of the country. t ... | 2017 | 28143663 |
| presence and prevalence of raffaelea lauricola, cause of laurel wilt, in different species of ambrosia beetle in florida, usa. | we summarize the information available on ambrosia beetle species that have been associated in florida with raffaelea lauricola t.c. harr., fraedrich & aghayeva, the primary symbiont of xyleborus glabratus eichhoff and cause of laurel wilt. in total, 14 species in ambrosiodmus, euwallacea, premnobius, xyleborus, xyleborinus, and xylosandrus were either reared from laurel wilt-affected host trees or trapped in laurel wilt-affected stands of the same, and assayed for r. lauricola in six collection ... | 2017 | 28073980 |
| efficacy of α-copaene, cubeb, and eucalyptol lures for detection of redbay ambrosia beetle (coleoptera: curculionidae: scolytinae). | redbay ambrosia beetle, xyleborus glabratus eichhoff, is a wood-boring pest that has now invaded nine states in the southeastern united states. the beetle's dominant fungal symbiont (raffaelea lauricola) is phytopathogenic, inducing laurel wilt in trees within the family lauraceae. members of the genus persea are particularly susceptible to the lethal disease, including native redbay (p. borbonia) and swampbay (p. palustris), as well as commercial avocado (p. americana). cubeb oil lures are the ... | 2016 | 27986939 |
| comparing avocado, swamp bay, and camphortree as hosts of raffaelea lauricola using a green fluorescent protein (gfp)-labeled strain of the pathogen. | raffaelea lauricola, a fungal symbiont of the ambrosia beetle xyleborus glabratus, causes laurel wilt in members of the lauraceae plant family. north american species in the family, such as avocado (persea americana) and swamp bay (p. palustris), are particularly susceptible to laurel wilt, whereas the asian camphortree (cinnamomum camphora) is relatively tolerant. to determine whether susceptibility is related to pathogen colonization, a green fluorescent protein-labeled strain of r. lauricola ... | 2017 | 27602540 |
| geographic variation in mycangial communities of xyleborus glabratus. | factors that influence fungal communities in ambrosia beetle mycangia are poorly understood. the beetle that is responsible for spreading laurel wilt in se usa, xyleborus glabratrus, was examined at three sites along a 500 km n-s transect in florida, each populated by host trees in the lauraceae. fungal phenotypes were quantified in mycangia of individual females that were collected from a site in miami-dade county (mdc), 25.8n, with swamp bay (persea palustris), one in highlands county (hc), 27 ... | 2016 | 27055571 |
| cubeb oil lures: terpenoid emissions, trapping efficacy, and longevity for attraction of redbay ambrosia beetle (coleoptera: curculionidae: scolytinae). | redbay ambrosia beetle, xyleborus glabratus eichhoff, is an exotic wood borer and the primary vector of raffaelea lauricola, a symbiotic fungus that causes laurel wilt. this lethal disease has decimated native redbay [persea borbonia (l.) sprengel] and swampbay [persea palustris (rafinesque) sargent] throughout southeastern u.s. forests, and currently threatens avocado (persea americana miller) in florida. to curtail the spread of laurel wilt, effective attractants are needed for early detection ... | 2015 | 26470139 |
| north american lauraceae: terpenoid emissions, relative attraction and boring preferences of redbay ambrosia beetle, xyleborus glabratus (coleoptera: curculionidae: scolytinae). | the invasive redbay ambrosia beetle, xyleborus glabratus, is the primary vector of raffaelea lauricola, a symbiotic fungus and the etiologic agent of laurel wilt. this lethal disease has caused severe mortality of redbay (persea borbonia) and swampbay (p. palustris) trees in the southeastern usa, threatens avocado (p. americana) production in florida, and has potential to impact additional new world species. to date, all north american hosts of x. glabratus and suscepts of laurel wilt are member ... | 2014 | 25007073 |
| effect of chipping on emergence of the redbay ambrosia beetle (coleoptera: curculionidae: scolytinae) and recovery of the laurel wilt pathogen from infested wood chips. | significant mortality ofredbay trees (persea borbonia (l.) spreng.) in the southeastern united states has been caused by raffaelea lauricola, t.c. harr., fraedrich, & aghayeva (harrington et al. 2008), a fungal symbiont of the exotic redbay ambrosia beetle, xyleborus glabratus, eichhoff (fraedrich et al. 2008). this pathogen causes laurel wilt, which is an irreversible disease that can kill mature trees within a few weeks in summer. r. lauricola has been shown to be lethal to most native species ... | 2013 | 24224251 |
| evaluation of screen barriers on redbay trees to protect them from xyleborus glabratus (coleoptera: curculionidae: scolytinae) and distribution of initial attacks in relation to stem moisture content, diameter, and height. | fine mesh screen was used to create a physical barrier to prevent redbay ambrosia beetles, xyleborus glabratus eichhoff (coleoptera: curculionidae: scolytinae), from accessing various parts of the boles of redbay trees, persea borbonia (l.) sprengel, and infecting them with the laurel wilt fungus, raffaelea lauricola (t.c. harrington, fraedrich, & aghayeva). screen barriers prevented beetles from attacking boles of mature redbay trees from the ground to 1 or to 3 m and from 1 to 3 m above ground ... | 2013 | 24020283 |
| temporal analysis of sesquiterpene emissions from manuka and phoebe oil lures and efficacy for attraction of xyleborus glabratus (coleoptera: curculionidae: scolytinae). | redbay ambrosia beetle, xyleborus glabratus eichhoff, is an exotic wood-borer that vectors the fungal agent (raffaelea lauricola) responsible for laurel wilt. laurel wilt has had severe impact on forest ecosystems in the southeastern united states, killing a large proportion of native persea trees, particularly redbay (p. borbonia) and swampbay (p. palustris), and currently poses an economic threat to avocado (p. americana) in florida. to control the spread of this lethal disease, effective attr ... | 2012 | 22606839 |
| the scent of a partner: ambrosia beetles are attracted to volatiles from their fungal symbionts. | invasive fungus-growing ambrosia beetles are an emerging threat to forest ecosystems and fruit industries, but management tools are lacking. here we explored the potential of beetle symbionts-ambrosia fungi-as a source of attractants. our focus was the redbay ambrosia beetle, xyleborus glabratus, and its symbiotic fungus, raffaelea lauricola, which are devastating lauraceous hosts in the southeastern united states. we also tested three additional co-occurring beetle species and their symbionts. ... | 2011 | 22161224 |
| isolations from the redbay ambrosia beetle, xyleborus glabratus, confirm that the laurel wilt pathogen, raffaelea lauricola, originated in asia. | the laurel wilt pathogen raffaelea lauricola was hypothesized to have been introduced to the southeastern usa in the mycangium of the redbay ambrosia beetle, xyleborus glabratus, which is native to asia. to test this hypothesis adult x. glabratus were trapped in taiwan and on kyushu island, japan, in 2009, and dead beetles were sent to usa for isolation of fungal symbionts. individual x. glabratus were macerated in glass tissue grinders, and the slurry was serially diluted and plated onto malt a ... | 2011 | 21471288 |
| wickerhamomyces arborarius f.a., sp. nov., an ascomycetous yeast species found in arboreal habitats on three different continents. | five strains representing a novel yeast species belonging to the genus wickerhamomyces were independently isolated from ecuador, taiwan and the usa. one strain (clqca 10-161(t)) was isolated from the white flower of an unidentified plant species collected in the maquipucuna cloud forest reserve, near quito, in ecuador. a second strain (gy7l12) was isolated from the leaf of a chinese sumac or nutgall tree (rhus chinensis 'roxburghiana') collected in the taoyuan mountain area, kachsiung, in taiwan ... | 2014 | 24453230 |
| effect of tree species and end seal on attractiveness and utility of cut bolts to the redbay ambrosia beetle and granulate ambrosia beetle (coleoptera: curculionidae: scolytinae). | the redbay ambrosia beetle, xyleborus glabratus eichhoff, is a non-native invasive pest and vector of the fungus that causes laurel wilt disease in certain trees of the family lauraceae. this study assessed the relative attractiveness and suitability of cut bolts of several tree species to x. glabratus. in 2009, female x. glabratus were equally attracted to traps baited with swampbay (persea palustris (rafinesque) sargent) and camphortree (cinnamomum camphora (l.) j. presl), which were more attr ... | 2012 | 22606816 |
| mycangia of ambrosia beetles host communities of bacteria. | the research field of animal and plant symbioses is advancing from studying interactions between two species to whole communities of associates. high-throughput sequencing of microbial communities supports multiplexed sampling for statistically robust tests of hypotheses about symbiotic associations. we focus on ambrosia beetles, the increasingly damaging insects primarily associated with fungal symbionts, which have also been reported to support bacteria. to analyze the diversity, composition, ... | 2012 | 22546962 |
| manuka oil and phoebe oil are attractive baits for xyleborus glabratus (coleoptera: scolytinae), the vector of laurel wilt. | redbay ambrosia beetle, xyleborus glabratus eichhoff, is a native of southeast asia recently established in coastal forests of georgia, sc and florida. it vectors a wilt fungus, raffaelea sp., lethal to redbay trees, persea borbonia l. spreng, and certain other lauraceae. no practical monitoring system exists for this beetle so we conducted studies to identify host attractants and develop lures. volatiles were collected from redbay wood and bark by steam distillation, direct solvent extraction, ... | 2008 | 19161682 |