Bulletin ... |
Contents
ECONOMIC IMPORTANCE OF THE EUROPEAN HOUSEBORER | 1 |
SYSTEMATICS | 22 |
ii Effect on egg viability | 48 |
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adults amount of pentachlorophenol attacked bark batches beetle benzene benzene hexachloride butyl alcohol Callidium Cape Peninsula Cape Town cent P.C.P. cent pentachlorophenol cent zinc naphthenate Cerambycinae chemical chlorine chlorophenol coastal areas contact action control of Hylotrupes copper naphthenate creosote cubic foot damage differ significantly dipping Entomology Entomology Memoir females filter forest dèbris fumigation genus heartwood Hylotrupes bajulus infested timber inoculated insect insecticides iron roofs larvae Linnaeus live larvae method methyl bromide mixture moisture Naph number of eggs obtained penetration penta pentachloro pentachlorophenol solution phenol pine timber Pinus pinaster Port Elizabeth power paraffin pretreated rapid reagent recorded replications roof timbers sample sapwood secondary butyl alcohol solvent South Africa species spray tunnel structural timbers surface TABLE temperatures tests timber timber preservatives total number treated blocks Treatment types of roofs types of timber untreated Weidner western Cape Province Wolman Salts wood preservatives young larvae zinc sulphate