Research@Lincoln
    • Login
     
    View Item 
    •   Research@Lincoln Home
    • Faculty of Agriculture and Life Sciences
    • Department of Agricultural Sciences
    • View Item
    •   Research@Lincoln Home
    • Faculty of Agriculture and Life Sciences
    • Department of Agricultural Sciences
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Effect of cool season grazing on lucerne production and aphid populations

    Smallfield, B. M.; White, J. G. H.; Penman, D. R.
    Abstract
    In a P-year Wairau lucerne trial, plots were grazed on a 3- or 6- weekly rotation; Half of each plot was hard grazed in June to control overwintering aphids. In the second year a spring/autumn spraying was applied. June grazing reduced aphid populations in spring from 37 to 3 per stem, and gave no significant difference in dry matter yield. Three-weekly spelling, although reducing aphid numbers, halved plant populations and root weight and markedly decreased dry matter yield. In the second year, 6-weekly spelling yielded 13 120 kg/ha, and 3-weekly only 3 540 kg/ha. Spraying of aphids increased yields, but not significantly. The results show that cheap methods of controlling aphids in lucerne can be developed using grazing management.... [Show full abstract]
    Keywords
    grazing management; lucerne; aphids; dry matter yield
    Fields of Research
    070308 Crop and Pasture Protection (Pests, Diseases and Weeds); 0703 Crop and Pasture Production
    Date
    1979
    Type
    Conference Contribution - Published (Conference Paper)
    Collections
    • Department of Agricultural Sciences [1440]
    Share this

    on Twitter on Facebook on LinkedIn on Reddit on Tumblr by Email

    Thumbnail
    View/Open
    smallfield_white_penman_1979.pdf
    Metadata
     Expand record
    Copyright © The Authors and New Zealand Grassland Association.
    Citation
    Smallfield, B. M., White, J. G. H. & Penman, D. R. (1979). Effect of cool season grazing on lucerne production and aphid populations. In Proceedings of the New Zealand Grassland Association, 41, 42-49
    This service is managed by Learning, Teaching and Library
    • Archive Policy
    • Copyright and Reuse
    • Deposit Guidelines and FAQ
    • Contact Us
     

     

    Browse

    All of Research@LincolnCommunities & CollectionsTitlesAuthorsKeywordsBy Issue DateThis CollectionTitlesAuthorsKeywordsBy Issue Date

    My Account

    LoginRegister

    Statistics

    View Usage Statistics
    This service is managed by Learning, Teaching and Library
    • Archive Policy
    • Copyright and Reuse
    • Deposit Guidelines and FAQ
    • Contact Us