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Autor: Offord, H.R.

The prevalence and identity of 72 pathogens occurring on Pinus radiate D. Don are described against a brief background of the native host and its environment. Records of pathogens in California herbaria, pathology notes is Forest Service files, findings of recent surveys, and publications provide...


Offord, H.R.[Disease of monterrey pine in native stands of California and in plantations of western North America]Disease of monterrey pine in native stands of California and in plantations of western North America

On an average site in northern coastal California, a tanoak-mixed shrub community was given several treatments (manual release one, two, and three times; a combination chainsaw and cut surface chemical treatment; two foliar chemicals; and a tank mix of the two chemicals) to study its development ...


McDonald, Philip M.Fiddler, G.O.[Ecology and development of douglas-fir seedlings and associated plant species in a coast range plantation]Ecology and development of douglas-fir seedlings and associated plant species in a coast range plantation
McPherson., E. GregorySimpson, James R.[Carbon dioxide reduction trough urban forestry: guidelines for professional and volunteer tree planters]Carbon dioxide reduction trough urban forestry: guidelines for professional and volunteer tree planters

These 104 papers were presented at "Our National Landscape: A Conference on Applied Techniques for Analysis and Management of the Visual Resource," Incline Village, Nevada, April 23-25, 1979. Included in this proceedings are state-of-the-art papers on landscape planning. Emphasis is upon planning...


Este informe proporciona una guía de técnicas para diseñar pruebas de campo de insecticidas candidatos, y para llevar a cabo pruebas piloto y proyectos de control. Describe diseños experimentales para probar hipótesis y para muestrear árboles para estimar las densidades de población de insectos y...


Williams, Carroll B.Maxwell, LizMcGregor, Mark D.Sharpnack, David A.Shea, Patrick J.[Guide to testing insecticides on coniferous forest defoliators]Guide to testing insecticides on coniferous forest defoliators
Oliver, William W.Powers, Robert F.[Growth models for ponderosa pine: I. Yield of unthinned plantations in northern California]Growth models for ponderosa pine: I. Yield of unthinned plantations in northern California

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