Author: Marion Page
Publisher:
ISBN:
Category : Lodgepole pine
Languages : en
Pages : 10
Book Description
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.
Residual Activity of Carbaryl Protected Lodgepole Pine Against Mountain Pine Beetle, Dillon, Colorado, 1982 and 1983
Author: Marion Page
Publisher:
ISBN:
Category : Lodgepole pine
Languages : en
Pages : 10
Book Description
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.
Publisher:
ISBN:
Category : Lodgepole pine
Languages : en
Pages : 10
Book Description
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.
Residual Activity of Carbaryl Protected Lodgepole Pine Against Mountain Pine Beetle, Dillon, Colorado, 1982 and 1983
Author: Marion Page
Publisher:
ISBN:
Category : Lodgepole pine
Languages : en
Pages : 4
Book Description
Publisher:
ISBN:
Category : Lodgepole pine
Languages : en
Pages : 4
Book Description
Proceedings--Symposium on the Management of Lodgepole Pine to Minimize Losses to the Mountain Pine Beetle, Kalispell, MT, July 12-14, 1988
Author:
Publisher:
ISBN:
Category : Lodgepole pine
Languages : en
Pages : 128
Book Description
Publisher:
ISBN:
Category : Lodgepole pine
Languages : en
Pages : 128
Book Description
Assessment and Response to Bark Beetle Outbreaks in the Rocky Mountain Area
Author: United States. Forest Health Protection
Publisher:
ISBN:
Category : Bark beetles
Languages : en
Pages : 60
Book Description
Publisher:
ISBN:
Category : Bark beetles
Languages : en
Pages : 60
Book Description
General Technical Report INT.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 492
Book Description
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 492
Book Description
Research Note PSW.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 172
Book Description
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 172
Book Description
General Technical Report RMRS
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 60
Book Description
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 60
Book Description
Effectiveness of Esfenvalerate, Cyfluthrin, and Carbaryl in Protecting Individual Lodgepole Pines and Ponderosa Pines from Attack by Dendroctonus Spp
Author:
Publisher:
ISBN:
Category : Dendroctonus
Languages : en
Pages : 20
Book Description
Publisher:
ISBN:
Category : Dendroctonus
Languages : en
Pages : 20
Book Description
General Technical Report PSW.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 704
Book Description
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 704
Book Description
White Pine Blister Rust in Northern Idaho and Western Montana
Author: David N. Cole
Publisher:
ISBN:
Category : Blister rust
Languages : en
Pages : 532
Book Description
Publisher:
ISBN:
Category : Blister rust
Languages : en
Pages : 532
Book Description