Forest Health Protection Reports and Publications
2018
Worrall JJ, Lockner AD, Gardiner TS. 2018. Disease and Insects in Canyon Creek Recreation Sites. Technical Report R2-70. USDA Forest Service, Rocky Mountain Region, Golden, Colorado. 9 pp. Available in PDF
Worrall JJ, Lockner AD, Angwin PA, Gardiner TS. 2018. Disease, Insects, and Management in Amphitheater Campground. Technical Report R2-69. USDA Forest Service, Rocky Mountain Region, Golden, Colorado. 13 pp. Available in PDF
2016
Worrall JJ, Marchetti SB, Rehfeldt GE. 2016. Bioclimate Models and Change Projections to Inform Forest Adaptation in Southwestern Colorado: Interim Report. Technical Report R2-68. USDA Forest Service, Rocky Mountain Region, Golden, Colorado. 26 pp. Available in PDF format
2011
Martinez DL, Ryszka G, Worrall JJ, Mask RA, Eager T, Egeland L. 2011. Deterioration of Fire-Killed Trees in the Rocky Mountain Region. USDA Forest Service, Rocky Mountain Region, Renewable Resources, Technical Report R2-RR-11-01. 36 pp. Available in PDF format.
2010
Rocky Mountain Region, Forest Health Protection. 2010. Field guide to diseases & insects of the Rocky Mountain Region. Gen. Tech. Rep. RMRS-GTR-241 Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 336 p. Available in PDF format.
2008
Burns KS, Schoettle AW, Jacobi WR, Mahalovich MF. 2008. Options for the management of white pine blister rust in the Rocky Mountain Region . Gen. Tech. Rep. RMRS-GTR-206. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station.
2000
McConnell TJ, Johnson EW, Burns B. 2000. A guide to conducting aerial sketchmapping surveys. USDA For. Serv., Forest Health Technology Enterprise Team, Ft. Collins, CO. FHTET 00-01. 88 p.
McMillin JD, Allen KK. 2000. Impacts of Douglas-fir beetle on overstory and understory conditions of Douglas-fir stands, Shoshone National Forest, Wyoming. USDA For. Serv., Rocky Mountain Region, Renewable Resources. Tech. Rep. R2-64. 17 p.
1999
Harris JL. 1999. Evaluation of white pine blister rust disease on the Shoshone National Forest. USDA For. Serv., Rocky Mountain Region, Renewable Resources. Tech. Rep. R2-99-05. 11 p.
Johnson DW. 1999. Evaluation of Porcupine and Snyder Creeks dwarf mistletoe thinning studies, Routt National Forest, Colorado. USDA For. Serv., Rocky Mountain Region, Renewable Resources. Tech. Rep. R2- 62. 12 p.
Johnson DW. 1999. Disease survey of Buckhorn Creek lodgepole pine stand forty years after establishment, Canyon Lakes Ranger District, Arapaho and Roosevelt National Forests. USDA For. Serv., Rocky Mountain Region, Renewable Resources. Tech. Rep. R2- 63. 5 p.
Gunnison Service Center
2023
Lockner A, Marchetti S, Nelson J. 2023. Year Three Update on the Mountain Pine Beetle Population in the Wilder-Gunnison Highlands Outbreak and Treatment Area, Gunnison Ranger District, GMUG National Forest. Service Trip Report GSC-23-06. 8p. Available in PDF format
2022
Marchetti S, Lockner A, Lalande B, Nelson J. 2022. Mountain Pine Beetle Activity in Lodgepole Pine: Update on the Wilder-Gunnison Highlands, and Gunnison National Forest Outbreak. Service Trip Report GSC-22-04. 13p. Available in PDF format
2021
Lockner A, Schotzko K, Lalande B, Marchetti S. 2021. Mountain Pine Beetle Activity in Lodgepole Pine: Wilder, Gunnison Highlands, and Gunnison National Forest. Service Trip Report GSC-21-02. 8p. Available in PDF format
Lockner A, Schotzko K, Lalande B, Marchetti S. 2021. Biological Evaluation of Mountain Pine Beetle in Lodgepole Pine: Wilder, Gunnison Highlands, and Gunnison National Forest. Biological Evaluation, Trip Report GSC-21-04. 13p. Available in PDF format
Lakewood Service Center
2023
Kruse J, Davenport M. 2023. Douglas-fir Tussock Moth Population Status and Potential for a Front Range Outbreak. Service Trip Report LSC-24-03. 12p. Available in PDF format
Rapid City Service Center
Coming Soon!
2021
Lockner A, Schotzko K, Lalande B, Marchetti S. 2021. Biological Evaluation of Mountain Pine Beetle in Lodgepole Pine: Wilder, Gunnison Highlands, and Gunnison National Forest. Biological Evaluation, Trip Report GSC-21-04. 13p. Available in PDF format
2020
Black Hills Regional Mountain Pine Beetle Working Group. 2020. Black Hills Regional Mountain Pine Beetle Strategy: Collaborative Accomplishments 2012-2017. USDA Forest Service. 44p. Available in PDF format
2018
Schoettle A, Burns K, Douville T, Holtz C. 2018. Update on the Southern Rockies Rust Resistance Trial (SRRRT). Biological Evaluation R2-18-01. 8 p. Available in PDF format.
2017
Cleaver, Christy M.; Burns, Kelly S.; Schoettle, Anna W. 2017. Limber Pine and White Pine Blister Rust Monitoring and Assessment Guide for Rocky Mountain National Park. Final Report prepared by Rocky Mountain Research Station for Rocky Mountain National Park. Inter-Agency Agreement 15-IA-11221633-157. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 28p. Available in PDF format
2013
Backsen JC, Howell B. 2013. Comparing Aerial Detection and Photo Interpretation for Conducting Forest Health Surveys. Western Journal of Applied Forestry 28(1) 3-8. Available in PDF format.
Worrall JJ, Rehfeldt GE, Hamann A, Hogg EH, Michaelian M, Marchetti SB, Gray LK. 2013. Recent declines of Populus tremuloides in North America linked to climate. Forest Ecology and Management 299:35-51. Available in PDF format.
2011
Marchetti SB, Worrall JJ, Eager T. 2011. Secondary insects and diseases contribute to sudden aspen decline in southwestern Colorado, USA. Canadian Journal of Forest Research 41:2315-2325. Available in PDF format
Negrón, J.F, W.C. Schaupp, Jr., and L. Pederson. 2011. Flight Periodicity of the Douglas-fir Beetle, Dendroctonus pseudotsugae Hopkins (Coleoptera: Curculionidae: Scolytinae) in Colorado, U.S.A. Coleopterists Bulletin, 65(2):182-184. Available in PDF Format.
Sturrock RN, Frankel SJ, Brown AV, Hennon PE, Kliejunas JT, Lewis KJ, Worrall JJ, Woods AJ. 2011. Climate change and forest diseases. Plant Pathology 60(1):133-149. Available in PDF format.
2010
Costello, S.L. and W.C. Schaupp, Jr. 2010. First Nebraska State collection record of the mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae: Scolytinae). Coleopterists Bulletin 65(1):21-23. Available in PDF format.
Worrall JJ. 2010. Trees under threat. In: Mayes BA, editor. 2011 Science Year. The World Book Annual Science Supplement. Chicago, Illinois: World Book, Inc. p 40-53. (No PDF)
Worrall JJ, Adams GC, Tharp SC. 2010. Summer heat and an epidemic of cytospora canker of Alnus. Canadian Journal of Plant Pathology 32(3):376-386. Available in PDF format.
Worrall JJ, Marchetti SB, Egeland L, Mask RA, Eager T, Howell B. 2010. Effects and etiology of sudden aspen decline in southwestern Colorado, USA. Forest Ecology and Management 260(5):638-648. Available in PDF format.
Worrall JJ, Harrington TC, Blodgett JT, Conklin DA, Fairweather ML. 2010. Heterobasidion annosum and H. parviporum in the southern Rocky Mountains and adjoining states. Plant Disease 94(1):115-118.
2009
Worrall JJ. 2009. Dieback and mortality of Alnus in the Southern Rocky Mountains, USA. Plant Disease 93(3):293-298.
2008
Adams GC, Catal M, Trummer L, Hansen EM, Reeser P, Worrall JJ. 2008. Phytophthora alni subsp. uniformis found in Alaska beneath thinleaf alders. Online. Plant Health Progress doi:10.1094/PHP-2008-1212-02-BR.
Worrall JJ, Egeland L, Eager T, Mask RA, Johnson EW, Kemp PA, Shepperd WD. 2008. Rapid mortality of Populus tremuloides in southwestern Colorado, USA. Forest Ecol. and Mgmt. 255(3-4): 686-696. Available in PDF format.
Worrall JJ, Egeland L, Eager T, Mask RA, Johnson EW, Kemp PA, Shepperd WD. 2008. Sudden aspen decline in southwest Colorado: site and stand factors and a hypothesis on etiology. In: McWilliams MG, editor. Proceedings of the 55th Western International Forest Disease Work Conference; 2007 October 15-19; Sedona, Arizona. Salem, Oregon: Oregon Department of Forestry. p 63-66. Available in PDF format.
2005
Worrall JJ, Lee TD, Harrington TC. 2005. Forest dynamics and agents that initiate and expand canopy gaps in Picea - Abies forests of Crawford Notch, New Hampshire, USA. Journal of Ecology 93:178-190.
Blodgett JT, Sullivan KF. 2004. First report of white pine blister rust on Rocky Mountain bristlecone pine. Plant Disease 88:311.
2004
Witcosky J. February 6, 2004. Scolytus schevyrewi Semenov An Asian Bark Beetle New to the United States. Pest Update. 2 p.
Worrall JJ, Sullivan KF, Harrington TC, Steimel JP. 2004. Incidence, host relations and population structure of Armillaria ostoyae in Colorado campgrounds. Forest Ecol. Mgmt. 192:191-206.
2000
Johnson DW, Jacobi WR. 2000. First report of white pine blister rust in Colorado . Plant Disease 84(5): 595.
Negron JF, Schaupp WC, Johnson E. 2000. Development and validation of a fixed-precision sequential sampling plan for estimating brood adult density of Dendroctonus pseudotsugae (Coleoptera:Scolytidae). The Canadian Entomologist 132: 119-133.
Negrón, J.F, W.C. Schaupp, Jr., and E. Johnson. 2000. Development and validation of a fixed-precision sequential sampling plan for estimating brood adult density of Dendroctonus pseudotsugae (Coleoptera: Scolytidae). The Canadian Entomologist 132: 119-133. (No electronic copy available)
1999
Johnson DW. 1999. Picea engelmannii Parry ex Engelm. 1863 . IN: Schutt, Schuck, Lang, Roloff [eds.]. Enzyklopedie der Holzgewachse (Encyclopedia of Woody Plants). Ecomed Verlagsgesellschaft AG & Co., Landsberg, Germany. 8 p.
Negron JF, Schaupp WC, Jr., Gibson KE, Anhold J, Hansen D, Thier R, Mocettini P. 1999. Estimating extent of mortality associated with the Douglas-fir beetle in the Central and Northern Rockies. Western Journal of Applied Forestry 14(3): 121-127.