Search Results - "Fielding, N.J"

Defoliation and growth loss in young Sitka spruce following repeated attack by the green spruce aphid, Elatobium abietinum (Walker) by Straw, N.A., Fielding, N.J., Green, G., Price, J.

“…Green spruce aphid, Elatobium abietinum (Walker), is a serious defoliator of Sitka spruce ( Picea sitchensis (Bong.) Carr.). In a field experiment in Hafren…”
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The impact of green spruce aphid, Elatobium abietinum (Walker), and root aphids on the growth of young Sitka spruce in Hafren Forest, Wales: effects on height, diameter and volume by Straw, N.A., Fielding, N.J., Green, G., Price, J.

“…In 1992 the UK Forestry Commission established a field experiment in Hafren Forest, Wales, to determine the impact of green spruce aphid ( Elatobium abietinum)…”
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The impact of green spruce aphid, Elatobium abietinum (Walker), on the growth of young Sitka spruce in Hafren forest, Wales: delayed effects on needle size limit wood production by Straw, N.A, Fielding, N.J, Green, G, Price, J

“…Defoliation of 3-year-old Sitka spruce ( Picea sitchensis (Bong.) Carr.) by green spruce aphid ( Elatobium abietinum (Walker)), in a field experiment in Hafren…”
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The impact of green spruce aphid, Elatobium abietinum (Walker), on the growth of young Sitka spruce in Hafren Forest, Wales: pattern of defoliation and effect on shoot growth by Straw, N.A, Fielding, N.J, Green, G, Coggan, A

“…Green spruce aphid ( Elatobium abietinum) is the main defoliator of Sitka spruce in the UK, but there is a lack of quantitative data on its effects on tree…”
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Phytotoxicity of insecticides used to control aphids on Sitka spruce, Picea sitchensis (Bong.) Carr by Straw, N.A., Fielding, N.J., Waters, A.

“…Treatment of 2–4 year old Sitka spruce in the field with the insecticides dimethoate, malathion, pirimicarb, Pynosect (pyrethrum + resmethrin) and Savona…”
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Field response of the Dutch elm disease vectors, Scolytus multistriatus (Marsham) and Scolytus scolytus (F.) (Coleoptera: Scolytidae) to 4-methyl-3-heptanol baits containing alpha-, beta-, gamma-, or delta-multistriatin [Vectors of Ceratocystis ulmi, insect behavior] by Blight M.M, Fielding N.J, King C.J, Ottridge A.P, Wadhams L.J

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Field response of elm bark beetles to baits containing 4-methyl-3-heptanone by Blight, M.M, Henderson, N.C, Wadhams, L.J, Fielding, N.J, King, C.J

“…The behaviour of the elm bark beetles, Scolytus scolytus and S. multistriatus , two vectors of Dutch elm disease, is influenced by beetle- and…”
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