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  1. 1
    Occurrence of in periwinkle in California

    Occurrence of in periwinkle in California per A Granett, R Blue, M Harjung, E Calavan, D Gumpf

    Publicat 1976-03-01
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    Article
  2. 2
    Leafhopper—natural vector of citrus stubborn disease?

    Leafhopper—natural vector of citrus stubborn disease? per G Kaloostian, G Oldfield, H Pierce, E Calavan, A Granett, G Rana, D Gumpf

    Publicat 1975-02-01
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    Article

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