T OP CROP MANAGER CANOLA PESTS AND DISEASES KNOW. GROW. OCTOBER 2016 • EASTERN EDITION CEREALS 5 | Sulphur fertilizer for canola and alfalfa Research backing updates to sulphur application recommendations for Ontario producers. By Trudy Kelly Forsythe 10 | Insecticide applications that enliven insects A surprising phenomenon with implications for agriculture. By Carolyn King 16 | Crop future: perennial grain This crop could enhance soils and provide human and livestock food. By Rosalie I. Tennison 5 10 PHOTO COURTESY OF AZARA EFFECT PRODUCTIONS. 16 Proper management and stewardship of Bt corn is essential. Photo courtesy of Jocelyn Smith. CROP MANAGEMENT 8 PLANT BREEDING Protecting Bt corn By Julienne Isaacs Stewards of Canadian ag By Brandi Cowen 14 Biofuels breakthrough By Julienne Isaacs FERTILITY AND NUTRIENTS SOIL AND WATER 20 Investigating soil bacterial and fungal communities By Trudy Kelly Forsythe WEED MANAGEMENT FROM THE EDITOR 4 18 Soil N reserves: are they richer than you think? By Julienne Isaacs 22 Weed recovery after burial by soil By John Dietz CANOLA 24 Optimum canola seeding dates and rates By Carolyn King SPECIAL SECTION TRAITS AND STEWARDSHIP GUIDE 2016 Our annual Traits and Stewardship Guide has been updated again with the latest corn and soybean hybrids for the coming year. View the guide starting on page 27 of this issue. ON THE COVER: For more resource guides, visit topcropmanager.com/resource-guides. 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 east | October 2016 3 PHOTO COURTESY OF DOUG CATTANI. PHOTO COURTESY OF JOHN LAUZON.