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9 Cards in this Set
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Pissodes terminalis - lodgepole pine - shoot feeding weevil - eggs laid at base of leader, larvae tunnel under bark, eat phloem upwards - shepherd's crook damage |
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Pissodes strobi - Sitka spruce - shoot feeding weevil - eggs laid at base of leader, larvae travel down eating phloem - older larvae tunnel into pith and pupate there |
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Adelges picea - introduced - causes mortality - sapwood warping, filled with resin - chlorotic crowns, swelling, gouting at branch nodes - insert feeding tube into mainstem, so exuidiate is on branches and mainstem |
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Adelges cooleyi - primary host is spruce, secondary is Douglas-fir - doesn't kill, but reduces vigour, causing galls on branch tips in spruce - sexual reproduction here - white fluffy exudiate on Douglas-fir needles |
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Dioryctria abietivorella - Douglas-fir, true firs - very visible cone damage- adult moth has W pattern on forewingtips - larvae are big, reddish brown, pupate on ground, they are damaging stage - Lepidoptera: Pyralidae |
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Leptoglossus occidentalis - hemimetabolous, nymphs and adults cause damage by inserting mouthparts into cones - Douglas-fir, Ponderosa pine, incense cedar - no external injury - leaf-footed bug: Hemiptera: Coreidae |
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Elatobium abietinum - spruce pest - introduced - chlorotic foliage, needle loss - insert mouthparts in older/lower crown to suck out "honeydew" - cornicles exude excess honeydew - Hemiptera: Aphidae |
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Cydia strobilella - spruce cone feeder - hollows out central axis of cone - no external evidence of injury - Lepidoptera: tortricidae |
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Strobilomyia neanthracina - all spruce cones - no external damage - eggs laid on cone scales, maggots crawl in and eat seeds and scales - Diptera: Anthomyiidae |
