00760nas a2200169   4500008004100000020001400041245019900055210006900254260002100323300001200344490000800356653002700364100002500391700002100416700001800437856013500455       2005                        eng d  a0008-347X00aAntennae of Cryptorhynchus lapathi (Coleoptera: Curculionidae) detect two pheromone components of coniferophagous bark beetles in the stems of Salix sitchensis and Salix scouleriana (Salicaceae)0 aAntennae of Cryptorhynchus lapathi Coleoptera Curculionidae dete  cNovember-Decembe  a716-7180 v13710aCryptorhynchus lapathi1 aBroberg, Cynthia, L.1 aBorden, John, H.1 aGries, Regine  uhttps://weevil.myspecies.info/antennae-cryptorhynchus-lapathi-coleoptera-curculionidae-detect-two-pheromone-components-coniferopha01527nas a2200181   4500008004500000020001400045245013500059210006900194260001300263300001400276490000700290520082200297653002701119100002501146700002101171700001801192856013501210       2005                        Engldsh    a0046-225X00aOlfactory and feeding preferences of Cryptorhynchus lapathi L. (Coleoptera: Curculionidae) among hybrid clones and natural poplars0 aOlfactory and feeding preferences of Cryptorhynchus lapathi L Co  cDecember  a1606-16130 v343 aHybrid poplar clones show varying levels of attack by Cryptorhynchus lapathi (L.), a wood-boring weevil. We studied differences in olfactory and feeding behavior among four different hybrid poplars in a series of laboratory bioassays. Weevils did not discriminate between resistant and susceptible clones base() on olfaction in pitfall bioassays or antennal responses but did discriminate against the most resistant hybrid, NM 6 (P. nigra L. X P. maximowiczii Henry), in choice and no-choice paired-twig feeding bioassays. In addition, the susceptible hybrid, TN 302-9 (P. trichocarpa Torrey and Gray X P. nigra), was preferred for feeding over Salix scouleriana Barratt ex Hooker, a preferred host in the wild. We conclude that resistance among hybrid poplars is in part based on antixenotic cues before oviposition.10aCryptorhynchus lapathi1 aBroberg, Cynthia, L.1 aBorden, John, H.1 aGries, Regine  uhttps://weevil.myspecies.info/olfactory-and-feeding-preferences-cryptorhynchus-lapathi-l-coleoptera-curculionidae-among-hybrid-clo02054nas a2200181   4500008004500000020001400045245008900059210006900148260001300217300001200230490000800242520141500250653002701665100002501692700002101717700001801738856011601756       2006                        Engldsh    a0008-347X00aOlfactory and feeding preferences of Cryptorhynchus lapathi among hosts and nonhosts0 aOlfactory and feeding preferences of Cryptorhynchus lapathi amon  cMay-June  a357-3660 v1383 aIn British Columbia, native willows (Salix spp.) (Salicaceae) and, to a lesser extent, black cottonwood (Populus trichocarpa Torr. & Gray) (Salicaceae) are frequently attacked by the poplar and willow borer, Cryptorhynchus lapathi (L.) (Coleoptera: Curculionidae). Red alder (Alnus rubra Bong.) (Betulaceae), trembling aspen (Populus tremuloides Michx.), and bigleaf maple (Acer macrophyllum Pursh) (Aceraceae) are not attacked. We studied olfaction and feeding preferences in the laboratory and feeding, oviposition, and emergence in the field. Female C. lapathi preferred Scouler's willow (Salix scouleriana Barratt ex Hook.) over all other species by olfaction, but males did not discriminate between Scouler's willow and black cottonwood or trembling aspen. All species elicited at least some attraction in no-choice situations. Willow was generally preferred for feeding, but black cottonwood and red alder were also acceptable, unlike trembling aspen or bigleaf maple. In field caging experiments, adult weevils emerged from willow, black cottonwood, and red alder. We conclude that olfaction and feeding preferences are sufficiently powerful to mediate the frequent attack observed on native willows, the intermediate levels of attack on cottonwood, and the absence of attack on red alder. Successful development on red alder suggests that C. lapathi could expand its host range to include this species.10aCryptorhynchus lapathi1 aBroberg, Cynthia, L.1 aBorden, John, H.1 aGries, Regine  uhttps://weevil.myspecies.info/olfactory-and-feeding-preferences-cryptorhynchus-lapathi-among-hosts-and-nonhosts02081nas a2200181   4500008004500000020001400045245012400059210006900183260002100252300001200273490000800285520137500293653002701668100002501695700002101720700002301741856013501764       2001                        Engldsh    a0008-347X00aHost range, attack dynamics, and impact of Cryptorhynchus lapathi (Coleoptera: Curculionidae) on Salix (Salicaceae) spp0 aHost range attack dynamics and impact of Cryptorhynchus lapathi   cJanuary-February  a119-1300 v1333 aThe poplar and willow borer, Cryptorhynchus lapathi (L.), known to be present in British Columbia since 1923, primarily attacks species of Salix L. (Salicaceae) and Populus L. (Salicaceae). Larvae bore into stems, causing them to break easily. The impact of the weevil has been rising in recent years because of the increasing importance of poplar and willow from both economic and ecological perspectives. We conducted a study at 45 locations in British Columbia to determine host use among native Salix spp. and the between- and within-tree dynamics of C. lapathi. There were 11 new host records, but the incidence of attack was similar among species. Attacked trees were larger in general and had more dead wood and stems, more adventitious branches per stem, more total breaks per stem, and more naturally caused breaks per stem than their attack-free neighbours. Breaks caused by C. lapathi tended to be slightly larger in diameter and lower on the stem than naturally caused breaks. Bases of stems were preferentially attacked, and C. lapathi selected large stems in which to oviposit. As large attack-free trees become less abundant, weevils apparently start to attack small-diameter stems. Although C. lapathi is adversely affecting the health of willows in British Columbia, there is no evidence that any Salix species is threatened by weevil-caused extinction.10aCryptorhynchus lapathi1 aBroberg, Cynthia, L.1 aBorden, John, H.1 aHumble, Leland, M.  uhttps://weevil.myspecies.info/host-range-attack-dynamics-and-impact-cryptorhynchus-lapathi-coleoptera-curculionidae-salix-salicace00625nas a2200169   4500008004500000020001400045245009100059210006900150260001000219300001200229490000700241653002700248100002500275700002100300700002300321856011100344       2002                        Engldsh    a0045-506700aDistribution and abundance of Cryptorhynchus lapathi on Salix spp. in British Columbia0 aDistribution and abundance of Cryptorhynchus lapathi on Salix sp  cMarch  a561-5680 v3210aCryptorhynchus lapathi1 aBroberg, Cynthia, L.1 aBorden, John, H.1 aHumble, Leland, M.  uhttps://weevil.myspecies.info/distribution-and-abundance-cryptorhynchus-lapathi-salix-spp-british-columbia01869nas a2200169   4500008004500000020001400045245015300059210006900212260001300281300001400294490000700308520117600315653002701491100002501518700002101543856013501564       2005                        Engldsh    a0022-049300aHybrid poplar clones with Populus maximowimii parentage demonstrate postoviposition antibiosis to Cryptorhynchus lapathi (Coleoptera: Curculionidae)0 aHybrid poplar clones with Populus maximowimii parentage demonstr  cDecember  a2254-22590 v983 aDamage caused by the poplar-and-willow borer, Cryptorhynchus lapathi (L.) (Coleoptera: Curculionidae), is reported to vary among hybrid poplar clones. We evaluated oviposition preferences and larval success in four hybrid poplars on potted and field-planted trees. Oviposition occurred somewhat less frequently and abundantly on two clones with Populus maximowiczii Henry parentage in field-planted and potted trees, and significantly fewer larvae survived to adulthood on those clones. No adults emerged from field-planted NM 6 (Populus nigra L. X P. maximowiczii) and four emerged from TM 256-28 (Populus trichocarpa Torrey & Gray X P. maximowiczii) on which male-female pairs of C. lapathi had been caged. In contrast, 50 and 140 adults emerged over the same 2-yr period from two susceptible clones (n = 20), TD 52-226 (P. trichocarpa X Populus deltoides Bartram ex Marshall) and TN 302-9 (P. trichocarpa X P. nigra), respectively. Thus, resistance expressed by clones with P. maximowiczii parentage partially involves decreased levels of oviposition, but more significantly, antibiosis in resistant clones prevents the development of larvae, probably in early spring.10aCryptorhynchus lapathi1 aBroberg, Cynthia, L.1 aBorden, John, H.  uhttps://weevil.myspecies.info/hybrid-poplar-clones-populus-maximowimii-parentage-demonstrate-postoviposition-antibiosis-cryptorhyn00764nas a2200169   4500008004500000020001400045245019900059210006900258260002100327300001200348490000800360653002700368100002500395700002100420700001800441856013500459       2005                        Engldsh    a0008-347X00aAntennae of Cryptorhynchus lapathi (Coleoptera: Curculionidae) detect two pheromone components of coniferophagous bark beetles in the stems of Salix sitchensis and Salix scouleriana (Salicaceae)0 aAntennae of Cryptorhynchus lapathi Coleoptera Curculionidae dete  cNovember-Decembe  a716-7180 v13710aCryptorhynchus lapathi1 aBroberg, Cynthia, L.1 aBorden, John, H.1 aGries, Regine  uhttps://weevil.myspecies.info/antennae-cryptorhynchus-lapathi-coleoptera-curculionidae-detect-two-pheromone-components-coniferopha