2010
DOI: 10.4039/n09-013
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Sampling plan for Adelges cooleyi (Hemiptera: Adelgidae) in spruce seed orchards

Abstract: Within-plant and between-plants distributions of Cooley spruce gall adelgid,Adelges cooleyi (Gillette), fundatrices were measured in ''interior spruce'', Picea glauca 6 P. engelmannii (Moench) Voss. & Parry (Pinaceae), seed orchards in central British Columbia to develop a quantitative sampling plan. Adelgids (number of fundatrices per shoot) were abundant at the lower and middle crown heights of the tree crowns but scarce at the upper crown height, and more abundant on the ends and central one-third of branch… Show more

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“…Numerous studies have investigated gall maker distribution within a host and attempted to define appropriate sampling units and monitoring plans (Fay and Whitham 1990; Fidgen et al . 1994; Strong and Bennett 2010). Previous research has quantified midge densities and to some extent within-tree distribution by P. tumifex (Giese and Benjamin 1959) and measure mitigation techniques (Embree et al .…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Numerous studies have investigated gall maker distribution within a host and attempted to define appropriate sampling units and monitoring plans (Fay and Whitham 1990; Fidgen et al . 1994; Strong and Bennett 2010). Previous research has quantified midge densities and to some extent within-tree distribution by P. tumifex (Giese and Benjamin 1959) and measure mitigation techniques (Embree et al .…”
Section: Introductionmentioning
confidence: 99%
“…Numerous studies have investigated gall maker distribution within a host and attempted to define appropriate sampling units and monitoring plans (Fay and Whitham 1990;Fidgen et al 1994;Strong and Bennett 2010). Previous research has quantified midge densities and to some extent within-tree distribution by P. tumifex (Giese and Benjamin 1959) and measure mitigation techniques (Embree et al 1985;Estabrooks et al 1985); however, a standard protocol for assessing gall-midge densities, which would form the basis of monitoring programmes and population dynamics studies, has yet to be established.…”
Section: Introductionmentioning
confidence: 99%