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Tag Archives: Western Spruce Budworm

western spruce budworm, by William Ciesla, Forest Health Management International

Ocean-temperature effects suppress caterpillar’s infestations on Vancouver Island

Information Forestry,  December 2007— A century-long ocean-warming trend may explain the rarity of western spruce budworm outbreaks on southern Vancouver Island since the 1930s, according to a study by Canadian Forest Service scientists Alan Thomson and Ross Benton. Mild winter temperatures, linked to a rise in sea temperature, have de-synchronized Read more →