T OP CROP MANAGER PESTS AND DISEASES CROP MANAGEMENT KNOW. GROW. SPRING 2018 • POTATOES IN CANADA BREEDING AND GENETICS 5 | Battling Colorado potato beetle Primary weapons aren’t working like they used to. What are the alternatives? By Mark Halsall 8 | Prepping for planting Setting the stage for a successful growing season. By Carolyn King 14 | The library of potatoes The importance of the Canadian Potato Genetic Resources lab. By Madeleine Baerg 5 PHOTO COURTESY OF TRACY SHINNERS-CARNELLEY. 8 14 PHOTO COURTESY OF EUGENIA BANKS. Colorado potato beetle adults feeding in the field. PHOTO COURTESY OF TRACY SHINNERS-CARNELLEY. FROM THE EDITOR 4 Cautious eyes on what’s to come By Jannen Belbeck PESTS AND DISEASES 12 Defending against Dickeya By Mark Halsall 16 Fighting potato virus Y By Mark Halsall WEED MANAGEMENT 18 Advanced spot-spraying precision tech By Donna Fleury ON THE WEB POTATOES IN CANADA’S STORAGE SUPPLEMENT NOW AVAILABLE Inisde you will find helpful tips for minimizing bruising at harvest (including a harvest management checklist), maintenance and upgrades for your ventiliation and control systems, and prevention and management for potato storage diseases. PM40065710 ON THE COVER: Visit potatoesincanada.com/digital to view it now! PIC_GOREMAN_SUPP_DEC_BAS.indd 1 2017-12-18 1:24 PM Readers will find numerous references to pesticide and fertility applications, methods, timing and rates in the pages of Top Crop Manager. We encourage growers to check product registration status and consult with provincial recommendations and product labels for complete instructions. TOP CROP MANAGER/POTATOES IN CANADA | Spring 2018 3 PHOTO COURTESY OF AAFC.