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  • 1985-1989  (1)
  • 1970-1974  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 20 (1971), S. 0 
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Single sprays of DDT, malathion, azinphos-methyl and vamidothion were applied to apple trees at petal fall in 1967 and 1968 for the control of Lygocoris pabulinus in a commercial orchard in the west of England. The degree of control was assessed by sampling the number of capsids and newly damaged twigs in each treatment after spraying. Control on all sprayed trees was virtually complete in 1967. In the following year DDT, azinphos-methyl and vamidothion gave 74, 67 and 81 per cent control respectively, whereas no L. pabulinus was found on malathion-treated trees and only 0.2 per cent of the twigs assessed for damage showed recent feeding punctures. It was concluded that vamidothion and azinphos-methyl gave as good control of this species as DDT and that malathion gave better control.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 21 (1972), S. 0 
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Field trials were condueted in 1967 and 1969 in south-west England to compare the distributions on potato plants of green and pink biotypes of Macrosiphum euphorbiae. In both trials, the green biotype was most abundant on the lower, older leaves, whereas the pink biotype was of similar abundanee on all leaves irrespective of their position on the plant. Furthermore, the numerical predominence of the green biotype was greater on older plants.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1009
    Keywords: Scenic quality ; Landscape ; Management ; Preference policies ; Resource ; Value ; Model ; Computer ; Assessment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Incorporation of aesthetic considerations in the process of landscape planning and development has frequently met with poor results due to its lack of theoretical basis, public involvement, and failure to deal with spatial implications. This problem has been especially evident when dealing with large areas, for example, the Adirondacks, Scenic Highways, and National Forests and Parks. This study made use of public participation to evaluate scenic quality in a portion of the Niagara Escarpment in Southern Ontario, Canada. The results of this study were analyzed using thevisual management model proposed by Brown and Itami (1982) as a means of assessing and evaluating scenic quality. Themap analysis package formulated by Tomlin (1980) was then applied to this assessment for the purpose of spatial mapping of visual impact. The results of this study illustrate that it is possible to assess visual quality for landscape/management, preservation, and protection using a theoretical basis, public participation, and a systematic spatial mapping process.
    Type of Medium: Electronic Resource
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