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REPRODUCTION AND SURVIVAL OF THE AMBROSIA BEETLE TRYPODENDRON LINEATUM (OLIV.) (COLEOPTERA: SCOLYTIDAE) IN DOUGLAS-FIR AND WESTERN HEMLOCK LOGS

Published online by Cambridge University Press:  31 May 2012

T.L. Shore ,
J.A. McLean  and
J.C. Zanuncio
T.L. Shore
Affiliation:
Canadian Forestry Service, Pacific Forestry Centre, Victoria, British Columbia, Canada V8Z 1M5
J.A. McLean
Affiliation:
Faculty of Forestry, University of British Columbia, Vancouver, British Columbia, Canada V6T 1W5
J.C. Zanuncio
Affiliation:
Universidade Federal de Vicosa, Minas Gerais, Brazil
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Abstract

Spring-felled logs of Douglas-fir, Pseudotsuga menziesii (Mirb.) Franco, and western hemlock, Tsuga heterophylla (Raf.) Sarg., were attacked by ambrosia beetles, Trypodendron lineatum (Oliv.), in the year after felling. By monitoring individual galleries it was determined that brood production was similar to that found in fall- and winter-felled logs. The sex ratio of the brood did not differ significantly from 1:1. Only beetles that had failed to establish successful galleries emerged during the "second" flight period. Significant linear relationships were found between frass weight and each of the following variables: number of egg niches, emerged adult progeny, and gallery length. Mortality in galleries in Douglas-fir and western hemlock logs, respectively, was found to be 9.4 and 12.4% between the egg and larval–pupal stage and 19.5 and 32.1% between the larval–pupal and adult stages.

Résumé

Des grumes de douglas taxifolié (Pseudotsuga menziesii [Mirb.] Franco) et de pruche occidentale (Tsuga heterophylla [Raf.] Sarg.) abattues au printemps ont été envahies par le scolyte du bois (Trypodendron lineatum [Oliv.]) l’année suivant leur abattage. En surveillant les galeries une à une forées par les adultes, nous avons pu déterminer que la quantité de larves produites équivalait à celle observée dans les grumes abattues à l’automne et en hiver. Le taux de masculinité des larves ne s’écartait pas beaucoup de 1 : 1. Seuls les scolytes qui n’avaient pas réussi à faire éclore leurs oeufs dans leurs galeries en émergeaient pendant leur "deuxième" période de vol. Des relations linéaires significatives ont été établies entre le poids des chiures et chacune des variables suivantes : le nombre de niches aménagées pour les oeufs, la descendance adulte qui en sort et la longueur des galeries. D’après nos observations, 9,4 et 12,4% de ces petits coléoptères meurent respectivement dans les galeries forées dans le douglas taxifolié et dans la pruche occidentale entre leur stade d’oeuf et de larve–pupe et 19,5 et 32,1% entre les stades de larve–pupe et d’adulte.

Type
Articles
Information
The Canadian Entomologist , Volume 119 , Issue 2 , February 1987 , pp. 131 - 139
Copyright
Copyright © Entomological Society of Canada 1987

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References

Annilla, E., Bakke, A., Bejer-Petersen, B., and Lekander, B.. 1972. Flight period and brood emergence in Trypodendron lineatum (Oliv.) (Col: Scolytidae) in the Nordic countries. Communications Instituti Forestalis Fenniae 76.4. 28 pp.Google Scholar
Borden, J.H., and Fockler, C.E.. 1973. Emergence and orientation behavior of brood Trypodendron lineatum (Coleoptera: Scolytidae). J. ent. Soc. B.C. 70: 34–38.Google Scholar
Capecki, Z. 1967. Drwalnik paskowany — Trypodendron lineatum 01. (Scolytidae, Coleoptera) na terenie polski. (German abstract only reviewed: Der gestreife Nutzholzborkenkäfer — Trypodendron lineatum 01. (Scolytidae, Coleoptera) in Polen.). Prace Inst. Badawezego Lésnietwa 314: 3–80.Google Scholar
Chapman, J.A. 1955. Interpretation of adult history in the ambrosia beetle Trypodendron. Can. Dep. Agric. For. Biol. Div., Bi-Mon. Prog. Rep. 11: 3–4.Google Scholar
Chapman, J.A. 1959. Forced attacks by the ambrosia beetle Trypodendron. Can. Dep. Agric. For. Biol. Div., Bi-Mon. Prog. Rep. 15(5): 3.Google Scholar
Chapman, J.A. 1962. Field studies on attack flight and log selection by the ambrosia beetle Trypodendron lineatum (Oliv.) (Coleoptera: Scolytidae). Can. Ent. 94: 74–92.CrossRefGoogle Scholar
Chapman, J.A., and Dyer, E.D.A.. 1969. Characteristics of Douglas-fir logs in relation to ambrosia beetle attack. For. Sci. 15(1): 95–101.Google Scholar
Chapman, J.A., and Kinghorn, J.M.. 1958. Studies of flight and attack activity of the ambrosia beetle Trypodendron lineatum and other scolytids. Can. Ent. 90: 362–372.CrossRefGoogle Scholar
Dyer, E.D.A. 1963. Attack and brood production of ambrosia beetles in logging debris. Can. Ent. 95: 624–631.CrossRefGoogle Scholar
Dyer, E.D.A., and Chapman, J.A.. 1965. Flight and attack of the ambrosia beetle Trypodendron lineatum (Oliv.) in relation to felling date of logs. Can. Ent. 97: 42–57.CrossRefGoogle Scholar
Francia, F.C., and Graham, K.. 1966. Aspects or orientation behavior in the ambrosia beetle Trypodendron lineatum (Olivier). Can. J. Zool. 45: 985–1002.CrossRefGoogle Scholar
Freese, F. 1962. Elementary forest sampling. U.S.D.A. For. Serv., Agric. Handb. 232. 91 pp.Google Scholar
Gibson, C., Kinghorn, J., and Chapman, J.. 1958. Ambrosia beetle brood productivity. Can. Dep. Agric. For. Biol. Div., Bi-Mon. Prog. Rep. 14(5): 2.Google Scholar
Hadorn, C. 1933. Recherches sur la morphologie, les stades évolutifs et l'hivernage du Bostryche lisère (Xyloterus lineatus Oliv.). Suppl. Aux. org. de la Soc. Forest. Suisse, Bern 11: 1–120.Google Scholar
Hosking, G.P. 1972. Xyleborus saxeseni, its life-history and flight behavior in New Zealand. N.Z.J. For. Sci. 3(1): 37–53.Google Scholar
Kinghorn, J.M. 1957. Two practical methods of identifying types of ambrosia beetle damage. J. econ. Ent. 50: 213.CrossRefGoogle Scholar
Klimetzek, D. 1984. Grundlagen einer Überwachung und Bekämpfung der Nutzholzborkenkäfer (Trypodendron spp.) mit Lock- und Ablenkstoffen. Freiburger Waldschutz-Abhandlungen, Vol. 5. 227 pp.Google Scholar
Mathers, W.G. 1935. Time of felling in relation to injury from ambrosia beetles, or pinworms. B.C. Lumberman 19(8): 14.Google Scholar
McLean, J.A. 1985. Ambrosia beetles: a multimillion dollar degrade problem of sawlogs in coastal British Columbia. For. Chron. 61: 295–298.CrossRefGoogle Scholar
Prebble, M.L., and Graham, K.. 1957. Studies of attack by ambrosia beetles in softwood logs on Vancouver Island, British Columbia. For. Sci. 3: 90–112.Google Scholar
Zanuncio, J.C. 1981. Biology of Gnathotrichus sulcatus (LeConte 1868) (Coleoptera: Scolytidae) with special emphasis on host colonization and brood production. Ph.D. thesis, University of British Columbia, Canada. 118 pp.Google Scholar