1. Occurrence of the A² mating type ofPhytophthora infestans in potato fields in the United States and Canada

   • K. L. Deahl
   • R. W. Goth
   • M. E. Gallegly

   OriginalPaper Pages: 717 - 725

2. An assay to quantify vascular colonization of potato byVerticillium dahliae

   • German P. Hoyos
   • Paul J. Zambino
   • Neil A. Anderson

   OriginalPaper Pages: 727 - 742

3. The flowering tobacco as a new alternative host for the Colorado potato beetle

   • R. -M. Duchesne
   • J. -G. Parent

   OriginalPaper Pages: 743 - 750

4. Irrigation, nitrogen and gypsum effects on specific gravity and internal defects of Atlantic potatoes

   • G. H. Silva
   • R. W. Chase
   • R. B. Kitchen

   OriginalPaper Pages: 751 - 765

5. Electrophoretic characterization of North American potato cultivars

   • D. S. Douches
   • K. Ludlam

   OriginalPaper Pages: 767 - 780

6. Jasmonates and their role in plant growth and development, with special reference to the control of potato tuberization: A review

   • Jan H. van den Berg
   • Elmer E. Ewing

   OriginalPaper Pages: 781 - 794

7. Second call for papers for the 76th Annual Meeting of PAA

   Association Business Pages: 795 - 796

8. Second call for Graduate Student Awards Competition papers for the 76th Annual Meeting of PAA

   Association Business Pages: 796 - 797

9. Second call for nominations for Honorary Life Membership in PAA

   Association Business Pages: 797 - 798

10. Addendum

    • Kenneth A. Rykbost
    • Randy L. Dovel
    • Neil W. Christensen

    Erratum Pages: 798 - 799