02947nas a2200193   4500008004500000020001400045245018500059210006900244260001100313300001400324490000800338520215300346653002402499100002202523700002102545700002702566700002502593856013502618       2008                        Engldsh    a0022-049300aBiology and host associations of redbay ambrosia beetle (Coleoptera: Curculionidae: Scolytinae), exotic vector of laurel wilt killing redbay trees in the southeastern United States0 aBiology and host associations of redbay ambrosia beetle Coleopte  cAugust  a1276-12860 v1013 aThe 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 least several years old. Adults were active throughout the year with peak activity in early September. Brood development seems to take 50-60 d. Wood infested with beetles and infected with the Raffaelea sp. was similar in attraction to uninfested redbay wood, whereas both were more attractive than a nonhost species. Sassafras, Sassafras albidium (Nutt.) Nees, another species of Lauraceae, was not attractive to X. glabratus and very few beetle entrance holes were found in sassafras wood compared with redbay. Conversely, avocado, Persea americana Mill., was as attractive to X. glabratus as swampbay, P. palustris (Raf.) Sarg., and both were more attractive than the nonhost red maple, Acer rubrum L. However, avocado had relatively few entrance holes in the wood. In 2007, we compared X. glabratus populations in areas where all mature redbay have died to areas where infestations were very active and more recent. Trap catches of X. glabratus and numbers of entrance holes in trap bolts of redbay were correlated with the number of dead trees with leaves attached. Older infestations where mature host trees had been eliminated by the wilt had low numbers of beetles resulting in trap catches ranging from 0.04 to 0.12 beetles per trap per d compared with 4-7 beetles per trap per d in areas with numerous recently dead trees. Our results indicate beetle populations drop dramatically after suitable host material is gone and provide hope that management strategies can be developed to restore redbay trees. The lack of attraction of X. glabratus to sassafras suggests that spread of X. glabratus may slow once it is outside the range of redbay.10aXyleborus glabratus1 aHanula, James, L.1 aMayfield, A., E.1 aFraedrich, Stephen, W.1 aRabaglia, Robert, J.  uhttps://weevil.myspecies.info/biology-and-host-associations-redbay-ambrosia-beetle-coleoptera-curculionidae-scolytinae-exotic-vect02574nas a2200181   4500008004100000020001400041245018300055210006900238260000800307300001200315490000800327520182800335653002402163653003002187100002102217700001902238856013502257       2012                        eng d  a0022-049300aEffect 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)0 aEffect of Tree Species and End Seal on Attractiveness and Utilit  cApr  a461-4700 v1053 aThe 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 attractive than avocado (Persea americana Miller), lancewood (Ocotea coriacea (Swartz) Britton), and sweetbay (Magnolia virginiana L.). These species were more attractive than loblolly bay (Gordonia lasianthus (L.) J. Ellis). X. glabratus entrance hole density and emergence from caged bolts were highest on swampbay and camphortree. In 2010, swampbay was significantly more attractive to X. glabratus than sassafras (Sassafras albidum (Nuttall) Nees), yellow poplar (Liriodendron tulipifera L.), and eastern redbud (Cercis canadensis L.). Sassafras bolts end sealed with a liquid wax-and-water emulsion were more attractive to X. glabratus than end-sealed bolts of yellow poplar and redbud. Relative to unsealed bolts, end seal decreased X. glabratus entrance hole density on swampbay and decreased granulate ambrosia beetle (Xylosandrus crassiusculus (Motschulsky)) trap catch, entrance hole density, and adult emergence from swampbay. X. crassiusculus was not attracted to sassafras, yellow poplar, and redbud and was not more attracted to manuka oil than to unbaited traps. Sassafras was more attractive to X. glabratus than previously reported and supported reproducing populations of the insect. End sealing bolts with a wax-and-water emulsion may not be optimal for attracting and rearing ambrosia beetles in small logs.10aXyleborus glabratus10aXylosandrus crassiusculus1 aMayfield, A., E.1 aHanula, J., L.  uhttps://weevil.myspecies.info/effect-tree-species-and-end-seal-attractiveness-and-utility-cut-bolts-redbay-ambrosia-beetle-and-gra01361nas a2200229   4500008004500000020001400045245018200059210006900241260001400310300001200324490000700336520050100343653002400844100002100868700001700889700001800906700001800924700001900942700002000961700001500981856013500996       2008                        Engldsh    a0015-404000aAbility of the redbay ambrosia beetle (Coleoptera: Curculionidae: Scolytinae) to bore into young avocado (Lauraceae) plants and transmit the laurel wilt pathogen (Raffaelea sp.)0 aAbility of the redbay ambrosia beetle Coleoptera Curculionidae S  cSeptember  a485-4870 v913 aIn 2 no-choice experiments, female redbay ambrosia beetles were released onto young plants of redbay, live oak, and 5 different avocado cultivars of various genetic backgrounds. Beetles bored into all species except live oak, and transmitted the laurel wilt fungus to redbay and all the avocado cultivars except 'Hass'. Only redbay and 'Simmonds' avocado plants were killed, suggesting that avocado susceptibility to laurel wilt may vary among plants or cultivars of different genetic background.10aXyleborus glabratus1 aMayfield, A., E.1 aPena, J., E.1 aCrane, J., H.1 aSmith, J., A.1 aBranch, C., L.1 aOttoson, E., D.1 aHughes, M.  uhttps://weevil.myspecies.info/ability-redbay-ambrosia-beetle-coleoptera-curculionidae-scolytinae-bore-young-avocado-lauraceae-plan