Low concentration of lindane plus induced attraction traps mountain pine beetle PDF Download
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Author: R. H. Smith
Publisher:
ISBN:
Category : Lodgepole pine
Languages : en
Pages : 6
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Book Description
Mountain pine beetles were induced to attack lodgepole pine sprayed with 0.2 percent or 0.3 percent lindane emulsion. Large numbers of beetles were killed and fell into traps at the base of the tree. The few successfully attacking beetles caused the sprayed trees to remain attractive to beetles for about two months. The incidence of attacked trees in the immediate area of the sprayed trees was apparently reduced.
Author: R. H. Smith
Publisher:
ISBN:
Category : Lodgepole pine
Languages : en
Pages : 6
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Book Description
Mountain pine beetles were induced to attack lodgepole pine sprayed with 0.2 percent or 0.3 percent lindane emulsion. Large numbers of beetles were killed and fell into traps at the base of the tree. The few successfully attacking beetles caused the sprayed trees to remain attractive to beetles for about two months. The incidence of attacked trees in the immediate area of the sprayed trees was apparently reduced.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 92
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Book Description
Author: Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.)
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 152
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Book Description
Author: Richard Harrison Smith
Publisher:
ISBN:
Category : Beetles
Languages : en
Pages : 10
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Book Description
Author: Richard H. Smith
Publisher:
ISBN:
Category : Western pine beetle
Languages : en
Pages : 16
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Book Description
Nearly 70 years of research and application are reviewed and assessed. Results of direct control projects can be characterized as generally effective, temporary, quite variable, and unpredictable in reducing subsequent tree mortality. Some causes of this characterization are variable and difficult stand conditions and logistics, lack of good beetle population measurements and prediction, unknown attributes of tree and stand dynamics and of beetle population dynamics, and unforeseen post-application factors. The control method used did not appreciably change this characterization: fell-peel-bum, salvage logging, penetrating oil, residual toxic sprays, or attractive pheromones. Use of attractive pheromones was never thoroughly analyzed, and use of baited toxic trap trees was never adequately tested; both should be done.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 172
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Book Description
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 474
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Book Description
Author: United States. Forest Service
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 140
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Book Description
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 148
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Book Description
Author:
Publisher:
ISBN:
Category : Sandalwood
Languages : en
Pages : 108
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Book Description
Sandalwood (Santalum spp.) trees grow in a variety of climates around the world and are culturally and economically important to about 15 countries. Exploitation of the fragrant heartwood for carvings, oil, and incense in the past has led to the need to conserve and manage the genus. The first substantial logging of sandalwood in Hawaii in 150 years generated local controversy in 1988, uncovered misinformation and speculation about the genus, and eventually led to the symposium in 1990. Papers in this proceedings cover history, distribution, status, ecology, management, propagation, and use of sandalwood. A synthesis paper summarizes the state-of-knowledge of the symposium participants. Research is needed to fill gaps in information on various aspects of sandalwood in many of the countries where it grows.
