Showing results under subject: 'forestry'

A short discussion of some scales affecting shade trees and hardy shrubs

Author: United States. Bureau of Entomology. - United States. Bureau of Entomology and Plant Quarantine.
Publisher:Washington DC,US Department of Agriculture, Bureau of Entomology 1950
Abstract: no abstract

General information on scale insects that attack shade trees and hardy shrubs

Author: Middleton, William. - United States. Bureau of Entomology. - United States. Bureau of Entomology and Plant Quarantine.
Publisher:Washington DC,US Department of Agriculture, Bureau of Entomology 1934
Abstract: no abstract

Hardy, productive tree fruits for the high altitude section of the central Great Plains

Author: Howard, Gene S., - Brown, G. B. (Gerald B.), - United States. Agricultural Research Service.
Publisher:Beltsville Md,US Dept of Agriculture, Agricultural Research Service 1962
Abstract: no abstract

Long-term evaluation of the effects of Bacillus thuringiensis kurstaki, gypsy moth nucleopolyhedrosis virus product Gypchek, and Entomophaga maimaiga…

Author: Strazanac, John S - Butler, Linda, - United States. Forest Health Technology Enterprise Team. - West Virginia University.
Publisher:Morgantown WV,US Dept of Agriculture, Forest Service, FHTET 20042014
Abstract: no abstract

Shelterbelt tree and shrub species under dryland culture in the Central Great Plains

Author: Howard, Gene S.,
Publisher:Washington DC,Agricultural Research Service, US Dept of Agriculture 1964
Abstract: no abstract

The care of wounds in the treatment of shade trees for borers

Author: Middleton, William. - United States. Bureau of Entomology. - United States. Bureau of Entomology and Plant Quarantine.
Publisher:Washington DC,US Department of Agriculture, Bureau of Entomology 1924
Abstract: no abstract

Land exchanges within national forests

Author: United States. Forest Service.
Publisher:United States,United States Department of Agriculture, Forest Service 1952
Abstract: no abstract

Preliminary report on the insect enemies of forests in the Northwest : An account of the results gained from a reconnaissance trip made in the spring…

Author: Hopkins, A. D. (Andrew Delmar),
Publisher:Washington DC,US Dept of Agriculture, Division of Entomology 1899
Abstract: no abstract

Suggestions for the collection of range plant specimens on National forests

Author: Graves, Henry S. (Henry Solon), - United States. Forest Service.
Publisher:Washington,United State Dept of Agriculture, Forest Service 1911
Abstract: no abstract

Defoliation of deciduous trees

Author: Middleton, William. - United States. Bureau of Entomology. - United States. Bureau of Entomology and Plant Quarantine.
Publisher:Washington DC,US Department of Agriculture, Bureau of Entomology 1924
Abstract: no abstract
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