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College of Agriculture & Natural Resources

  • 2025 Predicted Apple Harvest Dates – West Central Michigan Region

    Published on July 28, 2025
    This information includes predicted dates for peak apple harvest in the west central Michigan region.

  • Apple Sprays for Gardeners

    Published on April 8, 2025
    This is a summary of plant protection materials (pesticides) useful for managing important diseases and insect pests common to apples in the Midwest.

  • 2023 Predicted Apple Harvest Dates – Southwest Michigan Region

    Published on August 9, 2023
    The information below includes predicted dates for peak apple harvest in the southwest Michigan region.

  • Apple Thinning Strategies 2022

    Published on May 10, 2022
    Tools available for a precise, date-driven approach to apple thinning.

  • Spotted lanternfly: New pest alert for Michigan tree fruit growers

    Published on March 1, 2023
    Spotted lanternfly (SLF) is a new invasive pest to Michigan, and we are asking all growers to be on the lookout for this important new pest.

  • Application of 1-MCP to Your Fruit: Options for Treatment and Impact on Aroma

    Published on July 17, 2024
    Sources of 1-MCP for fruit and vegetable treatments are noted and factors that affect the release kinetics of 1-MCP are discussed.

  • Great Lakes Expo posters 2012

    Published on February 22, 2016

  • Storing Evercrisp Under CA and DCA

    Published on July 17, 2024
    The ability of Evercrisp apple fruit to tolerate a range of oxygen levels (0.6,, 0.9, 1.5, 3.0 and 21%) in combination with 0.5, 1.5, and 3% CO2 was described.

  • Common Apple Pests and Diseases/Plagas y Enfermedades Comunes del Manzano

    Published on November 8, 2024
    This poster serves as a quick ID guide for common apple pests and disease and the damage they can cause.

  • Apple Cultivars for Production of Hard Cider in Michigan

    Published on December 15, 2017
    This bulletin reviews existing information on cider apple cultivars evaluated for production in Michigan and provides additional trait information for other potential cider apple cultivars.

  • 2023 Predicted Apple Harvest Dates – Northwest Michigan Region

    Published on August 9, 2023
    The information below includes predicted dates for peak apple harvest in the northwest Michigan region.

  • The State of Michigan Agriculture: 2025

    Published on April 9, 2025
    This analysis outlines the state of Michigan agriculture in 2025.

  • Identifying and Mitigating Carbon Dioxide-Related Apple Internal Browning

    Published on July 17, 2024
    The symptoms and factors affecting carbon dioxide injury of apple are discussed.

  • Rapid Fruit Growth, Vascular Dysfunction, and Bitter Pit

    Published on July 17, 2024
    The history and physiology of bitter pit is described.

  • Costs of Apple Production

    Published on August 23, 2022
    This spreadsheet includes updated cost and practices for apple production in Michigan, compiled by MSU Extension educators and industry members.

  • 2021 Predicted Apple Harvest Dates

    Published on June 22, 2021
    These tables summarize the harvest dates for apple varieties predicted by the Enviroweather Apple Maturity Model for regions across Michigan.

  • Interim Update on the Economic Impact of Michigan's Agri-Food System

    Published on June 6, 2023
    This document offers an interim update on the economic impact of Michigan's agri-food and agri-energy system.

  • Plant Tissue Sampling to Determine Fruit Fertilizer Needs

    Published on January 29, 2016
    The nutritional health of orchard crops, grapes, and blueberries is best assessed by measuring the concentrations of nutrients in plant parts.

  • Pandemic Preparedness Plans and CHAMP Lite Tool

    Published on August 26, 2020
    Important information and resources for agriculture operations developing pandemic prepardness plans and implementing mitigation strategies that reduce exposure risks to COVID-19.

  • The Biological Mechanism Behind Early and Late Apple Bud Sports

    Published on July 17, 2024
    Early and late sports of three apple varieties (Gala, Fuji, and Cripps Pink [Pink Lady]) were evaluated for their growth rate and maturation.

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Issued in furtherance of MSU Extension work, acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture. Quentin Tyler, Director, MSU Extension, East Lansing, MI 48824. This information is for educational purposes only. Reference to commercial products or trade names does not imply endorsement by MSU Extension or bias against those not mentioned.

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