CONTENTS THE BUSINESS MAGAZINE FOR COMMERCIAL GROWERS OCTOBER 2023 | VOLUME 33, NUMBER 10 10 On the Cover 6 NOW INCLUDING: The cover image features Calibrachoa Eyeconic Sunset Compact from Danziger. Turn to page 24 to read more about this in the Culture Report. Photo courtesy of Danziger. 14 26 FEATURES 6 Production Photoperiod Management Flower induction of specialty cut flowers. By Roberto Lopez 10 PGRs Ornamental Floriculture PGRs are tools that provide resources to improve quality and efficiency in crops. By Christopher J. Currey 22 Great Lakes EXPO Biological Control Against Unwanted Pests How Great Lakes EXPO to give insight on sustainable pest management programs. By Madi Schafer COLUMNS 24 Culture Report Calibrachoa Choosing the right one can make a big difference. By Mike Fernandez 26 Vaughn's View Summer Trials 2023 By Vaughn Fletcher SPECIAL SECTION 14 Big Grower A Team Approach A philosophy that has led American Color to 25 years of success. By Keith Loria Miss our September issue? It's now available to view on gpnmag.com GREENHOUSE PRODUCT NEWS 3 DEPARTMENTS 4 Editor's Report 21 Product Spotlight 32 Product Marketplace 34 Classifieds/Ad Indexhttp://www.gpnmag.com