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Aer OV 2009.Pmd Pest Management Report Number 15 Library and Archives Canada Cataloguing in Publication Data Main entry under title: Summary of forest health conditions in British Columbia. - - 2001 - Annual. Vols. for 2009- issued in Pest management report series. Also issued on the Internet. ISSN 1715-0167 = Summary of forest health conditions in British Columbia. 1. Forest health - British Columbia - Evaluation - Periodicals. 2. Trees - Diseases and pests - British Columbia - Periodicals. 3. Forest surveys - British Columbia - Periodicals. I. British Columbia. Forest Practices Branch. II. Series: Pest management report. SB764.C3S95 634.9’6’09711 C2005-960057-8 2009 SUMMARY OF FOREST HEALTH CONDITIONS IN BRITISH COLUMBIA Joan Westfall1 and Tim Ebata2 Contact Information 1 Forest Health Forester, EntoPath Management Ltd., 1654 Hornby Avenue, Kamloops, BC, V2B 7R2. Email: [email protected] 2 Forest Health Initiatives Officer, Ministry of Forests and Range, PO Box 9513 Stn Prov Govt, Victoria, BC, V8W 9C2. Email: [email protected] TABLE OF CONTENTS Summary ......................................................................................................................................... i Introduction .................................................................................................................................... 1 Methods ........................................................................................................................................... 3 General Conditions ........................................................................................................................ 6 Damaging Agents of Pines ........................................................................................................... 8 Mountain pine beetle, Dendroctonus ponderosae ................................................................ 8 Dothistroma needle blight, Dothistroma septospora .......................................................... 20 Pine needle cast, Lophodermella concolor .............................................................................. 21 Pine engraver bark beetle, Ips pini ...................................................................................... 21 Damaging Agents of Douglas-fir ................................................................................................. 22 Western spruce budworm, Choristoneura occidentalis ...................................................... 22 Douglas-fir beetle, Dendroctonus pseudotsugae .................................................................. 26 Douglas-fir tussock moth, Orgyia pseudotsugata ............................................................... 29 Laminated root disease, Phellinus weirii ............................................................................ 31 Damaging Agents of Spruce ......................................................................................................... 31 Spruce beetle, Dendroctonus rufipennis ............................................................................... 31 Eastern spruce budworm, Choristoneura fumiferana ......................................................... 32 Damaging Agents of True Fir ....................................................................................................... 33 Western balsam bark beetle, Dryocoetes confusus ............................................................. 33 Two-year-cycle budworm, Choristoneura biennis .............................................................. 34 Delphinella needle cast, Delphinella spp. ........................................................................... 35 Annosus root disease, Heterobasidion annosum .................................................................. 35 Damaging Agents of Hemlock ..................................................................................................... 36 Western hemlock looper, Lambdina fiscellaria lugubrosa .................................................. 36 Western blackheaded budworm, Acleris gloverana .......................................................... 37 Hemlock sawfly, Neodiprion tsugae ..................................................................................... 37 Damaging Agents of Larch ........................................................................................................... 38 Larch needle blight, Hypodermella laricis ............................................................................ 38 Damaging Agents of Cedar .......................................................................................................... 38 Yellow-cedar decline ............................................................................................................ 38 Damaging Agents of Deciduous Trees ....................................................................................... 39 Bruce spanworm, Operophtera bruceata .............................................................................. 39 Gypsy moth, Lymantria dispar ............................................................................................. 40 Forest tent caterpillar, Malacosoma disstria ........................................................................ 41 Serpentine leaf miner, Phyllocristis populiella .................................................................... 41 Aspen and poplar leaf and twig blight, Venturia spp. ..................................................... 42 Satin moth, Leucoma salicis ................................................................................................... 43 Birch leafminer, Fenusa pusilla ............................................................................................. 43 Birch decline ........................................................................................................................... 43 Damaging Agents of Multiple Host Species .............................................................................. 44 Abiotic injury and associated forest health factors .......................................................... 44 Animal damage ..................................................................................................................... 46 Miscellaneous Damaging agents .................................................................................................. 48 Forest Health Projects .................................................................................................................... 50 1. Are free-growing stands meeting timber productivity expectations in the Okanagan TSA? .............................................................................................................. 50 2. FREP Stand Development Monitoring (SDM) ........................................................... 50 3. Armillaria aerial sketch mapping ................................................................................. 51 4. Bear deterrents tested in Prince George Forest District ............................................ 52 5. Comandra resistance trial .............................................................................................. 52 6. Determining the effect of pre-commercial thinning on root disease incidence ..... 53 7. FSP-FIA Project: Distribution and impact of Phellinus root disease in the Southern Interior ............................................................................................................. 53 8. Is stump removal reducing Armillaria root disease? The Wetask Lake Stumping Trial ................................................................................. 54 9. Low dose and unique strain virus trial 2009 .............................................................. 55 10. Monitoring whitebark pine in the Nelson area ......................................................... 55 11. Septoria musiva update ................................................................................................ 56 12. Spruce weevil hazard rating in southern British Columbia .................................... 57 13. Tree mortality events in Southeast BC. Is climate killing our forests? .................. 59 14. Western gall rust resistance trial establishment ......................................................... 60 15. White pine family resistance trials .............................................................................. 61 Forest Health Meetings ................................................................................................................... 61 Western International Forest Disease Conference ............................................................. 61 Whitebark pine workshop ................................................................................................... 62 Forest Health Presentations .......................................................................................................... 63 Change and opportunity in the Canadian Boreal Forest and beyond .......................... 64 Cross-Country Checkup - British Columbia report ......................................................... 65 Forest insect risks for fertilization of lodgepole pine in BC ........................................... 65 Insect challenges in a changing climate ............................................................................. 65 Mountain pine beetle colonization, reproduction and new generation emergence in live interior hybrid spruce in BC .........................................................
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