Download or read book Duration of Effectiveness of Carbaryl in Protecting Ponderosa Pines from Attack by Mountain Pine Beetles written by William F. McCambridge and published by . This book was released on 1981 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Duration of Effectiveness of Carbaryl in Protecting Ponderosa Pines from Attack by Mountain Pine Beetles written by William F. McCambridge and published by . This book was released on 1981 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Duration of Effectiveness of Carbaryl in Protecting Ponderosa Pines from Attack by Mountain Pine Beetles written by William F. McCambridge and published by . This book was released on 1981 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effectiveness of Esfenvalerate Cyfluthrin and Carbaryl in Protecting Individual Lodgepole Pines and Ponderosa Pines from Attack by Dendroctonus Spp written by and published by . This book was released on 1998 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Residual Activity of Carbaryl Protected Lodgepole Pine Against Mountain Pine Beetle Dillon Colorado 1982 and 1983 written by Marion Page and published by . This book was released on 1985 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mountain pine beetle (Dendroctonus ponderosae Hopkins) is the most destructive insect that attacks lodgepole pine (Pinus contorta Dougl.), a species valued for multiple uses throughtout North America. The effective residual life of carbaryl, applied as a 2 percent suspension of Sevimol to the bark of lodgepole pine to prevent attack by mountain pine beetle, was evaluated near Dillon, Colorado. Trees (9,568) treated in 1982 under operational conditions were used to assess the efficacy of the treatment for one and two beetle flight periods after insecticide application. Estimated mortality of untreated trees was 0.91 percent compared with 0.074 percent for trees treated 16 months earlier with carbaryl. Residues of carbaryl were estimated at 359 ppm 16 months after application. When exposed to intense beetle pressure, bolts from trees treated 13 months earlier suffered fewer attacks and had shorter mean egg gallery length than did bolts from untreated trees; bolts from trees sprayed 3 months earlier suffered no attacks. Apparently a 2 percent suspension of carbaryl applied to the bole of lodgepole pine was effective in protecting lodgepole pine from mountain pine beetle for the flight period 3 months after application and even provided protection for a second flight period 16 months after treatment. I The results suggest that protection cost and I insecticide use could be reduced by 50 percent during a 4-year outbreak.

Download or read book Effectiveness of Carbaryl and Chlorpyriphos for Protecting Ponderosa Pine Trees from Attack by the Western Pine Beetle Coleoptera Scolytidae written by R. W. Hall and published by . This book was released on 1982 with total page 5 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 Residual Activity of Carbaryl Protected Lodgepole Pine Against Mountain Pine Beetle Dillon Colorado 1982 and 1983 written by Marion Page and published by . This book was released on 1985 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Forest Service Research Note written by United States. Rocky Mountain Forest and Range Experiment Stations, Fort Collins, Colo and published by . This book was released on 1967 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mountain Pine Beetle Protection of Individual Trees from Attack written by and published by . This book was released on 1987 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book USDA Forest Service Research Note RM written by Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.) and published by . This book was released on 1967 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Note RM written by and published by . This book was released on 1982 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Accuracy of Determining Mountain Pine Beetle Attacks in Ponderosa Pine Utilizing Pitch Tubes Frass and Entrance Holes written by S. A. Mata and published by . This book was released on 1972 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Growth of Ponderosa Pine Stands in Relation to Mountain Pine Beetle Susceptibility written by and published by . This book was released on 1999 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ten-year diameter and basal area growth were determined for partially cut stands at 4 locations. Average diameters in the partially cut plots generally increased by 1 inch or more, while average diameter in the uncut controls increased by 0.9 inches or less. Individual tree growth is discussed in relation to potential susceptibility to mountain pine beetle infestation. Basal area increases ranged from 0.9 to 1.9 ft2/acre/ yr in partially cut plots, while basal area increases in the control plots ranged from 0.4 to 1.4 ft2/acre/yr. Endemic mountain pine beetle infestations and snow breakage accounted for most of the mortality on the plots, which decreased the residual basal area and basal area growth. Increases in basal area are used to estimate the length of time required for various stand densities to reach the susceptibility thresholds for mountain pine beetle infestation. Stand marking may influence future susceptibility to beetle infestations.

Download or read book Containment of Small Group Infestations of the Mountain Pine Beetle in Ponderosa Pine written by J. M. Schmid and published by . This book was released on 1989 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book General Technical Report RMRS written by and published by . This book was released on 1998 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessment and Response to Bark Beetle Outbreaks in the Rocky Mountain Area written by United States. Forest Health Protection and published by . This book was released on 2000 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: