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    Effect of tree fertilization on numbers and development of pear psylla (Homoptera: Psyllidae), and on fruit damage 

    Pfeiffer, DG; Burts, E. C. (1983)
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    Coleoptera of poultry manure in caged-layer houses in North Carolina 

    Pfeiffer, DG (1980)
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    Relative susceptibility to slide-dip application of cyhexatin in three populations of Panonychus ulmi (Koch) in Virginia apple orchards 

    Pfeiffer, DG; Pfeiffer, S. W. (1986)
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    Effect of tree fertilization on protein and free amino acid content and feeding rate of pear psylla (Homoptera: Psyllidae) 

    Pfeiffer, DG; Burts, E. C. (1984)
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    Effects of field applications of paraquat on densities of Panonychus ulmi (Koch) and Neoseiulus fallacis (Garman) 

    Pfeiffer, DG (1986)
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    Disruption of olfactory communication in oriental fruit moth and lesser appleworm in a Virginia peach orchard 

    Pfeiffer, DG; Killian, J. C. (1988)
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    Nitrogen and potassium fertilization effects on yield and quality of burley tobacco 

    Evanylo, GK; Sims, JL; Grove, JH (1987)
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    Interdisciplinary evaluation of pest management systems 

    Virginia Agricultural Experiment Station (Virginia Agricultural Experiment Station, 1985)
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    Differentiation of Endothia gyrosa and Endothia Parasitica by Disc Electrophoresis of Intramycelial Enzymes and Proteins 

    Stipes, R. Jay; Emert, George H.; Brown, Ross D. (Mycological Society of America, 1982)
    Mycelial proteins from seven isolates of Endothia gyrosa and five isolates of E. parasitica were extracted from acetone powders, separated on polyacrylamide gels by disc electrophoresis, and then stained for general proteins, ...
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    Bringing land back in: Changing strategies to improve agricultural production in the West African Sahel 

    Painter, T.M. (Boulder, CO: Westview Press, 1987)
    The chapter examines the difficulties encountered by programmes of the Niger government and development assistance organizations to increase agricultural productivity among peasant smallholders, when such endeavours lack ...
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    Content TypeAbstract (66)Extension publication (51)Periodical (50)Citation (12)Annual report (8)... View MoreSubjectAgriculture (15)Livestock (13)Rural development (13)Field Scale (12)Drought (11)... View MoreDate Issued1989 (17)1988 (11)1987 (18)1986 (18)1985 (28)1984 (20)1983 (17)1982 (10)1981 (10)1980 (3)AuthorEdmonds, W. J. (6)Pfeiffer, DG (6)Baker, J. C. (5)Brouwer, C. (5)Food and Agriculture Organization of the United Nations.‏ United Nations Development Programme (5)... View More

    If you believe that any material in VTechWorks should be removed, please see our policy and procedure for Requesting that Material be Amended or Removed. All takedown requests will be promptly acknowledged and investigated.

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