Decline and mortality of black spruce caused by spruce budworm defoliation and secondary organisms
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Chemical Control of the Jack-Pine and Spruce Budworms with Ground Application Equipment in Manitoba
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[mrp_rating_result no_rating_results_text="No ratings yet" before_count="(" after_count=" ratings)"]Aerial Survey of Dying Balsam Fir in Northern Ontario Using an Operation Recorder
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[mrp_rating_result no_rating_results_text="No ratings yet" before_count="(" after_count=" ratings)"]Aerial Volume Table for estimating Cubic Foot Losses of White Spruce and Balsam Fir In Minnesota
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[mrp_rating_result no_rating_results_text="No ratings yet" before_count="(" after_count=" ratings)"]Aircraft Calibration and Physical Characterization of Orthene and Two Biological Insecticides
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[mrp_rating_result no_rating_results_text="No ratings yet" before_count="(" after_count=" ratings)"]Aircraft Efficiency/ Block Design
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[mrp_rating_result no_rating_results_text="No ratings yet" before_count="(" after_count=" ratings)"]An Aerial Survey of Spruce and Fir Volume Killed by the Spruce Budworm in Northern Minnesota
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[mrp_rating_result no_rating_results_text="No ratings yet" before_count="(" after_count=" ratings)"]Winter Meeting- Northeastern forest disease and insect pest control committee. Wednesday, February 13, 1946
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[mrp_rating_result no_rating_results_text="No ratings yet" before_count="(" after_count=" ratings)"]1979 Annual Reports of Forest resource Research Advisory Committee and Cooperative Forestry Research
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[mrp_rating_result no_rating_results_text="No ratings yet" before_count="(" after_count=" ratings)"]Approaches to assessing insecticide efficacy inn spruce budworm (lepidorptera tortricidae) control programs
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