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  • Home
  • Commercial Info
    • General Culture >
      • Greenhouse Structures
      • Environment
      • Light and Daylength
      • Temperature
      • Nutrition
      • Water, Media and pH
      • Propagation
      • Weed Control
      • Plant Growth Regulators
      • Pest Control
      • Disease Control
    • Greenhouse Ornamental Crop Production >
      • Seed Propagated Ornamentals and Edibles
      • Vegetatively Propagated Ornamentals
      • Flowering Potted Plant Production
      • Foliage Plant Production
      • Greenhouse Perennial Production
      • Carnivorous Plant Production
    • Outdoor Ornamental Crop Production >
      • Bedding Plants
      • Perennials
      • Outdoor Shrub, Vine and Tree Production
    • Indoor Food/Medicinal Production >
      • Leafy Greens
      • Lettuce
      • Tomatoes
      • Peppers and Eggplant
      • Cucumbers
      • Herbs
      • Fruit
      • Mushrooms
      • Cannabis
      • Aquaponics
      • Other
    • Postharvest Handling
    • New Ornamental and Food Crops
    • Deep Winter Greenhouses and High Tunnels
  • Home Gardening
    • Maryland Fruit and Vegetable Gardening
    • Vegetable Gardening
    • Northern Fruit Gardening
    • Vegetable Pests and Diseases
    • Flowers
    • Perennials
    • Landscape Trees and Shrubs
    • Mushrooms
  • Research
    • Research Partners >
      • Altman Plants Resources >
        • Altman Bonsall & Lodi
        • Altman C & S
        • Altman's Colorado
        • Altmans Plug Connection & Lodi
        • Altmans Salinas
        • Altman Smart Planet
        • Altmans Texas
        • Altman Lake Mathews and Fallbrook
        • Lone Star Growers
        • Altman Tissue Culture
        • Altman Florida
      • Growfilm Information
      • SunSpectrum Information
      • Rocket Farms
      • Green Circle Growers
      • Go Green Agriculture
      • Chef's Garden
    • Past and Current Publications
    • Cacti
    • Succulents
    • Growth Regulators/Retardants
    • Deep Winter Greenhouses/High Tunnels
  • Teaching
    • The Backyard Farmer: The science of food production and preservation
    • Horticulture herbaceous plant identification (HORT 4113)
    • Growing the Guilty Pleasure (HORT 3480)
  • Victory Garden

Recent Presentations

ERWIN 2022 WEBINAR
Factors that Affect Flowering in Ornamental Plants

ERWIN 2022 FRA PRESENTATION HANDOUTS

University of Maryland Research Update

ERWIN 2022 CULTIVATE '22 PRESENTATION HANDOUTS
Temperature Effects on Plant Growth
Foliage Plant Production 

ERWIN 2021 FRA TALK
University of Maryland FRA Research Update (Erwin; 10-18-21)

ERWIN PRESENTATIONS CULTIVATE '21 (and MNLGA Greenhouse Conference)
Increasing efficiency to increase productivity (Erwin, 7-10-21)
Foliage Plant Production (Erwin, 7-10-21)
New PGR Option to Reduce Labor costs (7-11-21)

ERWIN MANTS HANDOUTS (2020)
PGR Updates (1-7-20)
Success in Keeping Roots! (1-7-20)
Flowering When you Want (1-7-20)


ERWIN FRA 2019 HANDOUT
The Nuts and Boldts of Keeping your Root (10-22-2019)

ERWIN HANDOUTS FROM CULTIVATE '19
Flowering Annuals and Perennials When You Want (7-12-19)
The Nuts and Bolts of Keeping Your Roots (7-12-19)
Erwin Research Update (7-13-19)

MIDLAND HILLS PESTICIDE RECERTIFICATION
Whats New in Plant Growth Regulators, and Whether You Can Combine them with Pesticides/Fungicides (2-26-19)


NORTH DAKOTA NURSERY, GREENHOUSE AND LANDSCAPE ASSOCIATION:
Growth Retardants in Ornamental Crop Production (1-29-19)
Reducing Inputs in Ornamental Crop Production (1-29-19).


OLMSTEAD COUNTY MASTER GARDENERS:
Growing Plants in a Hotter, Drier World (Erwin, 11-13-2018)
Growing Vegetables Successfully in Minnesota Gardens with Climate Change (Erwin, 11-13-2018).


FLORICULTURE RESEARCH ALLIANCE MEETING:
Ray Cloyd (Kansas State University):  Up-Date on Thrips and Mealybug Management.
Neil Anderson (Univ. of Minnesota):  Innovations in floriculture breeding

Paul Fisher (Univ. of Florida):  Labor, automation, and transplanting cuttings. Visualizing growing media properties
Erik Runkle (Michigan State Univ.):  Innovations in LED lighting
Roberto Lopez (Michigan State Univ.):  Lighting and plug production; Florel, Alkalinity and efficacy.
​Seth Wannemuehler (Univ. of Minnesota):  Utilizing auctions for price point determination.  Marketing tactics to increase Millennial floral purchase.
Jennifer Boldt/James Altland (USDA-ARS):  New ARS/USDA directions in greenhouse research
Jim Faust (Clemson Univ.):  Calcium, Botrytis management, Photoperiod perception
John Erwin (Univ. of Minnesota):  Saving your roots! TC Plant growth and survival.  Bedding Plant Root Respiration.  Optimizing leafy green photosynthesis.  PGR Update.
Vera Krisheck (University of Minnesota):  Neonics and Pollinators

John Erwin Handouts from Cultivate '18:
Secrets of Success with Edible Greenhouse Crops (Talk #1, July 14, 2018).
Direct Sticking:  A technique to reduce labor costs and production time (Talk #2, July 15, 2018).
Direct stick budget calculator (developed by Paul Fisher, University of Florida).

John Erwin Handouts from 'Utah Green' Presentations (January, 2018)
Plant growth regulators for bedding plant production (Erwin, Utah Green Talk #1, 2018).
Secrets of success with potted edible greenhouse crops (Erwin, Utah Green Talk #2, 2018).


John Erwin Handouts from 'MFVGA' Presentations (January, 2018)
Successful vegetable seed germination and growth (Erwin, MVFGA Talk #1, 2018)
Early seedling management (Erwin, MVFGA Talk #2, 2018).

Vera Krishek Handouts from Presentations (October, 2018)

GH/Nursery production, IPM for thrips (Krischik, 2017)




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