M9? G41? Apple Rootstocks Explained with John Strang ( EPS # 88)

B9? EMLA107? What's the difference between the many different types of rootstocks used for apple trees. And which is the best for you? Learn more in this episode of The Urban Forestry Radio Show and Podcast. Our expert guest is John Strang, Retired Extension Fruit and Vegetable Specialist from the University of Kentucky. Read the article version of this podcast here: https://orchardpeople.com/apple-tree-... For more podcasts on fruit tree care visit: https://orchardpeople.com/podcasts/ Chapters 00:00 Introduction 02:17 What are apple rootstocks? 03:07 History of apple rootstocks 04:07 History of Malling apple rootstocks 04:43 How Malling propagated rootstocks 06:04 Apple rootstocks from around the world 07:41 Why different rootstocks are needed 08:33 How fruiting keeps dwarfing trees small 09:54 Why dwarfing rootstocks can be brittle 10:52 Downside of dwarfing trees 12:44 Changing popularity of rootstocks 16:42 Apple rootstocks and fruit tree nurseries 19:16 Growing apple rootstocks from seed 20:09 What is fireblight 22:39 Fireblight resistant rootstocks 23:23 How to wash pesticides off apples 24:23 Bagging apples to protect them from pests 25:41 Apple rootstocks in Florida 29:49 Fruit tree grafting online course 30:50 Whiffletree Nursery 31:58 Silver Creek Nursery 35:23 Rootstocks and scions that work well together 37:00 Apple rootstocks for Alaska 40:20 Apple rootstocks in Canada 41:59 Freestanding dwarf rootstocks 43:59 Semi dwarf rootstocks for public spaces 44:34 Interstem grafting 47:03 Thinning fruit to increase tree growth 52:10 Bud9 vs M9 apple rootstocks 54:13 Grafting with Dolgo rootstock 56:05 Why dwarfing trees need more care* 58:14 Show wrap up Want to learn how to grow fruit trees successfully? Read on! 🌳 Learn specialist fruit tree grafting, pruning, pest and disease management, young tree care and more in one of Orchard People’s premium online courses: https://learn.orchardpeople.com/ 🍑 To purchase recommended fruit tree care products and books visit Orchard People's online store: https://orchardpeople.com/shop/ 🍐 For monthly fruit tree care content updates sign up for Orchard People's free monthly newsletter and to receive a free 11-page eBook "Growing Fruit Trees That Thrive" visit: https://orchardpeople.com/growing-fru... 🍎 For more videos, eBooks and podcasts about fruit tree care, visit https://orchardpeople.com/. Orchard People has made fruit tree care easier for thousands of home growers, gardeners and arborists in North America and beyond since 2013. Visit our website for more in depth information on fruit tree care and maintenance! https://orchardpeople.com.