1996
DOI: 10.5558/tfc72381-4
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Dispersal of Pissodes strobi in putatively resistant white spruce in Vernon, BC

Abstract: White pine weevil Pissodes strobi behaviour was observed in Le comportement du charanqon du pin blanc Pissodes strobi a five-year-old plantation of white spruce in Vernon, British a Ct C CtudiC dans une plantation de cinq ans d'Cpinetle blanche localColumbia. Seasonal weevil-host interactions were monitored in is& B Vernon en Colombie-Britannique. Les interactions charanqonfour susceptible and four putatively resistant reciprocal cross famh6te ant Ct-~diks chez q u m P&S susceptibles et qutre P&S ily pairs in … Show more

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Cited by 13 publications
(12 citation statements)
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“…Individual insects were marked with paint or ink using simple numbering systems (64, 93,143,185,193) or elaborate coding systems (25,158,178,225). For example, late-instar larvae of the nymphalid Euphydryas ( = Occidryas) editha bayensis were marked by strategically placing three dots of paint on each side of the larvae.…”
Section: Marking Individual Insects With Paints and Inksmentioning
confidence: 99%
“…Individual insects were marked with paint or ink using simple numbering systems (64, 93,143,185,193) or elaborate coding systems (25,158,178,225). For example, late-instar larvae of the nymphalid Euphydryas ( = Occidryas) editha bayensis were marked by strategically placing three dots of paint on each side of the larvae.…”
Section: Marking Individual Insects With Paints and Inksmentioning
confidence: 99%
“…Specific mortality factors have been measured for shorter time periods in other studies (Taylor, 1929;Sullivan, 1961;Alfaro & Borden, 1980;Hulme, 1990;Bellocq & Smith, 1994), but none of these measures was related to changes in the abundance of the population, so their relative importance to population dynamics of P. strobi remains uncertain. The available evidence suggests that within a fairly wide period of susceptibility of trees to attack by weevils (up to 30 years), there is significant variation in the incidence and duration of weevil attacks associated with a variety of natural mortality factors as mentioned above, as well as putative resistance of some tree genotypes (McIntosh et al, 1996), and site characteristics of the infested trees (Archambault et al, 1993;Hulme, 1995…”
Section: The White Pine Weevilmentioning
confidence: 99%
“…broadleaves in mixed stands include limiting spread of root disease among conifers (Morrison et al 1988, Gerlach et al 1997, reducing the risk of conifer attack by weevils and spruce budworm (Taylor et al 1994, McIntosh et al 1996, protecting understory conifers against frost (Andersson 1985, Pritchard andComeau 2004), providing habitat for ungulates, small mammals and birds (Peterson et al 1997, Aitken et al 2002, and improving soil productivity through nutrient-rich litter inputs (Brockley and Sanborn 2003). In keeping with this last point, total yield (conifers plus broadleaves) in mixed forests has sometimes been higher than in pure coniferous forests because of niche complementarity (Kenk 1992, Mielikainen 1996, Frivold and Kolström 1999, Man and Lieffers 1999, Valkonen and Valsta 2001.…”
Section: Advantages Of Managing For Broadleavesmentioning
confidence: 99%