Download or read book The Black Hills Beetle written by Andrew Delmar Hopkins and published by . This book was released on 1905 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Black Hills Beetle written by American Association of Economic Entomologists and published by . This book was released on 1905 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Primary Focus Trees for the Mountain Pine Beetle in the Black Hills written by and published by . This book was released on 1994 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Black Hills Beetle Dendroctonus Ponderosae Hopk written by Maulsby Willett Blackman and published by . This book was released on 1931 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mountain Pine Beetle written by Donn B. Cahill and published by . This book was released on 1971* with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Emergence Attack Densities and Seasonal Trends of Mountain Pine Beetle Dendroctonus Ponderosae in the Black Hills written by J. M. Schmid and published by . This book was released on 1972 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mountain Pine Beetle killed Trees as Snags in Black Hills Ponderosa Pine Stands written by J. M. Schmid and published by . This book was released on 2009 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mountain pine beetle-killed ponderosa pine trees in three stands of different stocking levels near Bear Mountain in the Black Hills National Forest were surveyed over a 5-year period to determine how long they persisted as unbroken snags. Rate of breakage varied during the first 5 years after MPB infestation: only one tree broke during the first 2 years in the three stands; breakage increased during the third year; the highest percentage of snags broke during the fourth year; and 10% to 14% broke in the fifth year. Cumulatively, snag breakage was 76%, 91%, and 95% in a GSL 80/90, GSL 100/110, and unmanaged stand, respectively. On average, 56% of the snags broke below 25 ft. The rate and height of breakage in mountain pine beetle-killed trees indicates that they are unlikely to persist as suitable snags for more than 5 to 10 years after infestation.

Download or read book Farmers Bulletin written by and published by . This book was released on 1940 with total page 924 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Risk Rating Guide for Mountain Pine Beetle in Black Hills Ponderosa Pine written by Robert E. Stevens and published by . This book was released on 1980 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Emergence Period of Black Hills Beetles from Ponderosa Pine in the Central Rocky Mountains written by William F. McCambridge and published by . This book was released on 1964 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mountain Pine Beetle Dynamics in Lodgepole Pine Forests written by Gene D. Amman and published by . This book was released on 1983 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Insect Enemies of the Pine in the Black Hills Forest Reserve written by Andrew Delmar Hopkins and published by . This book was released on 1902 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mountain Pine Beetle killed Trees as Snags in Black Hills Ponderosa Pine Stands written by and published by . This book was released on 2009 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecology Silviculture and Management of Black Hills Ponderosa Pine written by Wayne D. Shepperd and published by . This book was released on 2002 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents a broad-based synthesis of the general ecology of the ponderosa pine ecosystem in the Black Hills. This synthesis contains information and results of research on ponderosa pine from numerous sources within the Black Hills ecosystem. We discuss the silvical characteristics of ponderosa pine, natural disturbances that govern ecosystem processes, wildlife habitat and management, various silvicultural methods to manage ponderosa pine forests, and watershed management of the Black Hills.

Download or read book Hazard Rating Ponderosa Pine Stands for Mountain Pine Beetles in the Black Hills written by J. M. Schmid and published by . This book was released on 1994 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effectiveness of Thinning Ponderosa Pine Stands in Reducing Mountain Pine Beetle caused Tree Losses in the Black Hills Preliminary Observations written by William F. McCambridge and published by . This book was released on 1982 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Testing Verbenone for Reducing Mountain Pine Beetle Attacks in Ponderosa Pine in the Black Hills South Dakota written by and published by . This book was released on 2006 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2000 and 2002, Verbenone, a compound with anti-aggregation properties for mountain pine beetle, Dendroctonus ponderosae, was tested for reducing attacks by the insect in Ponderosa pine, Pinus ponderosae forests. The verbenone was released to the environment with the use of permeable membranes; the first year with plastic capsules (containing 0.8 g of verbenone) and the second year with an envelope-like pouch (containing 5.0 g of verbenone). The plastic capsules were deployed at a rate of 25 and 64 capsules per acre and a no capsule treatment served as control. The pouches were deployed at 30 and 50 pouches per acre and a no pouch treatment was the control. Mountain pine beetle attractants were placed on three trees at plot center to ensure insect population pressure. In neither experiment were there any observed differences in (1) number of mountain pine beetle-killed trees, (2) number of partial attacks (strip attacks), (3) number of unsuccessful attacks (pitch-outs), (4) diameter at breast height of infested trees, (5) attack height of infested trees, (6) mean distances of infested trees to verbenone releasers, (7) attractants located at plot center. The possible influence of stand environment is discussed as reason for lack of effectiveness. At this point, based on this and prior studies the operational use of verbenone for reducing mountain pine beetle-attacked trees in ponderosa pine forests is not advisable. Further studies on this topic should be conducted in the future as treatment technology is developed further or the appropriate release amount and timing is better understood.