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  1. Host relations of compsilura concinnata meigen : an important tachinid parasite of the gipsy moth and the brown-tail moth /
    By: Webber, R. T. - Schaffner, J. V.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1926.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Browntail moth  Gypsy moth  Host-parasite relationships  
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  2. Interactions of pectins and tissues of Cronartium ribicola and Pinus monticola in culture /
    By: Martin, N. E. - Intermountain Forest and Range Experiment Station (Ogden, Utah)
    Publication info: Ogden, Utah :Intermountain Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service,1980.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Blister rust  Diseases and pests  Host-parasite relationships  Pectin  Trees  Western white pine  White pine  
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  3. Microlepidoptera and their parasites reared from field collections in the Northeastern United States / by J.V. Schaffner, Jr.
    By: Schaffner, J. V.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1959.
    Contributed by: Smithsonian Libraries
    Subjects: Host-parasite relationships  Insect pests  Lepidoptera  Northeastern States  
    BHL Collections: Smithsonian Libraries
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  4. Microlepidoptera and their parasites reared from field collections in the Northeastern United States /
    By: Schaffner, J. V.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1959.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Host-parasite relationships  Insect pests  Lepidoptera  Northeastern States  
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  5. The role of the genus Rhamnus in the dissemination of crown rust /
    By: Dietz, S. M.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1923.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Buckthorns  Diseases and pests  Host-parasite relationships  Puccinia coronata  Rust fungi  
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  6. The serphoid and chalcidoid parasites of the hessian fly /
    By: Gahan, A. B.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1933.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: AgSpace  bio-control agfents  biological control agents  Classification  Diptera  grain crops  grain pests  Hessian flies  Host-parasite relationships  Insect pests  Internet resource  natural enemies  Parasites  Parasitic insects  parasitoids  plant pests  United States  
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  7. Soluble sugar concentrations in needles and bark of western white pine in response to season and blister rust /
    By: Martin, N. E. - Intermountain Research Station (Ogden, Utah)
    Publication info: Ogden, Utah :U.S.D.A. Forest Service, Intermountain Research Station,1987.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Blister rust  Diseases and pests  Forests and forestry  Host-parasite relationships  Western white pine  
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  8. A study of Compsilura concinnata, an imported tachinid parasite of the gipsy moth and the brown-tail moth /
    By: Culver, Julian Jarnagin,
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1919.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Browntail moth  Gypsy moth  Host-parasite relationships  
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  9. The western yellow pine mistletoe : effect on growth and suggestions for control /
    By: Korstian, Clarence F. - Long, W. H.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1922.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Host-parasite relationships  Mistletoe fungus  Ponderosa pine  Wounds and injuries  
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