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Grow Success with Apples: A Guide from University of Minnesota Extension

Discover the essential steps to grow apples successfully in your backyard with insights from the University of Minnesota Extension. This guide covers selecting the right planting site, proper planting techniques, and essential decisions after planting. Learn about pruning for optimal fruit production, pest and disease management, and selecting the best apple tree varieties suited for Minnesota’s climate. Uncover popular varieties such as Honeycrisp and Zestar, along with tips for maintaining healthy trees and managing common pests.

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Grow Success with Apples: A Guide from University of Minnesota Extension

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  1. Backyard Success With Apples Created by: Dave Knapp University of Minnesota Extension Master Gardener-Anoka County

  2. Backyard Success With Apples • Selecting a planting site • Proper planting technique • Decisions after planting • Pruning for fruit trees • Pest and disease management • Choosing an apple tree variety

  3. Choosing an apple tree variety • Consult a reliable source for varieties developed for our area • Know your fruit hardiness zone • Follow your tastebuds

  4. Choosing an apple tree variety • Apple varieties for Minnesota Zestar- ripens in late August and has a delightful balance of flavors. Sweet 16- one of the most unusual flavored apples in Minnesota. Very sweet with a flavor like cherry candy. Honeycrisp- Minnesota’s premier eating apple with a sweet-tart flavor and crisp texture.

  5. Choosing an apple tree variety • Know your fruit hardiness zone The Minnesota Metro area, including Anoka County, is in zone 4a. http://www.extension.umn.edu/distribution/horticulture/images/1111f02.jpg

  6. Select a planting site • What space requirements are needed for the variety of tree selected? • Are any soil amendments necessary? • Call for a free utility marking service to identify buried utilities. 1-888-258-0808

  7. Proper planting technique • Bare root planting • Container planting http://www.sustland.umn.edu/implement/images/planting_trees_2.gif

  8. Decisions after planting • How much should I mulch? http://na.fs.fed.us/pubs/uf/tom/090202_tom_hr.pdf

  9. Decisions after planting • Do I need to fertilize? http://www.clemson.edu/extension/hgic/graphics/1000/apply_fertilizer.jpg

  10. Decisions after planting • How much should I water? http://na.fs.fed.us/pubs/uf/tom/090202_tom_hr.pdf

  11. Decisions after planting • Is pruning needed? http://ohioline.osu.edu/hyg-fact/1000/1150.html

  12. Pest and Disease Management • Integrated Pest Management What are my choices for dealing with pests? What are the risks involved with each choice? What is my attitude toward those risks?

  13. Pest and disease management • What are key diseases I may encounter?

  14. Pest and disease management • What pests may I expect to bother my tree or fruit?

  15. Pest and disease management • Best cultural practices for good tree health .

  16. Pest and disease management • Options for those with low tolerance

  17. Pest and disease management • Key diseases of Apple in Minnesota Apple scab-caused by a fungus that affects both leaves and fruit. Fire Blight- a bacterial disease that can kill blossoms, green shoots, branches and trees. Black Rot- a fungal disease that is an occasional problem on stressed trees. Cedar Apple Rust- a fungal disease that damages leaves and fruit of very susceptible varieties. Sooty Blotch and Flyspeck- a fungal disease that causes cosmetic damage to fruit in August or September.

  18. Pest and disease management • Pests of Apple in Minnesota Apple Maggot http://www.extension.umn.edu/distribution/horticulture/m1235.html#apple-maggot-anchor

  19. Pest and disease management • Pests of Apple in Minnesota Codling Moth http://www.extension.umn.edu/distribution/horticulture/m1235.html#apple-maggot-anchor

  20. Pest and disease management • Pests of Apple in Minnesota Plum Curculio http://www.extension.umn.edu/distribution/horticulture/m1235.html#apple-maggot-anchor

  21. Pest and disease management • Pests of Apple in Minnesota Multicolored Asian Lady Beetle http://www.extension.umn.edu/distribution/horticulture/m1235.html#apple-maggot-anchor

  22. Pest and disease management • If you choose to spray: • Use something recommended for the pest or disease you are managing. • Read the label prior to use and follow all instructions. • Verify that the spray is recommended for edible fruits. • Some sprays are very toxic to bees and may cause fruit drop if used within 30 days of bloom.

  23. Pest and disease management • Cultural practices for good tree health. • Consider a disease resistant variety. • Do not encourage vigorous new growth. • Warm, humid environments encourage bacteria. Pruning opens air flow and reduces humidity. • Pick up dropped fruit and all leaves in the Fall. • Prune during freezing weather (Feb-March) • Mulch becomes dirt, so replace mulch as it deteriorates. • Consider non-spray treatments, fruit bagging, red sphere or Ladd traps.

  24. Choosing an apple tree variety

  25. Choosing an apple tree variety http://www.co.sheboygan.wi.us/county_depts/lwc/tree_sale/Trees/HONEYCRISP%20APPLE.jpg

  26. Resources and recommended reading. • Apples For Minnesota and Their Culinary Uses. Includes the Fruit Hardiness Zone Map, identifies 22 apple varieties and discusses storing options. www.extension.umn.edu/distribution/horticulture/DG1111 • Integrated Pest Management for Home Apple Growers. Introduces Integrated Pest Management (IPM) as a combination method for monitoring and managing pest and disease issues in apples. Discusses identification, biology and management options for key diseases and pests of apples in Minnesota. www.extension.umn.edu/distribution/horticulture/components/M1235 • University of Minnesota Extension home gardening information, including how to plant trees and shrubs. www.extension.umn.edu/garden

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