GGSPro Videos
GGSPro 5th Edition Reference Guide
GGSPro 5th Edition Spanish Reference Guide - English Audio
GGSPro 5th Edition Spanish Reference Guide - Spanish Audio
Aphid Control & Resistance
Budworm Control
Calcium Deficiency
Checking Injector Output and Fertilizer Mixing Accuracy
Edema and Intumescence
Extending Shelf Life and Marketability of Spring Plants
Griffin BCA Program Services
Griffin Predatory Mite Technology
Hortus IBA Salts Overview
Interpreting a Water Test
Liverwort
Magnesium Deficiency
Mealybug Control
Microbial Insecticides - Making the Most of Them
Thrips Parvispinus Karny aka Pepper Thrips
Water Alkalinity and Soil pH
2022 New Greenhouse and Nursery Fungicides
Average Daily Temperature Impact on Pest Pressure
Aphid Control With Insecticides
Biological Control of Thrips for Hanging Baskets
Biostimulants Part 1 - Microbes
Biostimulants Part 2 - Silicon and Phosphite
Biostimulants Part 3 - Humates and Chitosan
Biostimulants Part 4 - Protein Hydrolysates
Biostimulants Part 5 - Plants Algae and Extracts
Biostimulants Part 6.3 Reducing Fertilizer Use
Botrytis Control and Prevention
Botrytis Resistance Best Practices Including Calcium
Chemical Compatibility with Thrips BCAs
Controlling Height with PGRS for Poinsettia
Controlling Pests in Retail Greenhouses Part 1 - Common Foliar Diseases
Controlling Pests in Retail Greenhouses Part 2 - Aphids, Mealybugs, Whiteflies
Controlling Pests in Retail Greenhouses Part 3 - Fungus Gnats, Shoreflies, Thrips
Controlling Pests in Retail Greenhouses Part 4 - Mites and Slugs
Cultural Strategies for Manipulating Plant Growth
Eco Clean for Irrigation Line Maintenance
End of Season Sanitation
ePAR A New Definifion of Photosynthetic Light
Fertilizer, Plant Stretch and the Myths Surrounding Phosphorus
Flea Beetle Overview and Prevention
Florel Maximizing Effectivness
Fungicide Selection Covering the Bases
Garden Mums and Heat Effects
Garden Mums and Weed Control
Garden Mum Crown Budding and Effective Use of Florel
Garden Mum Nutrition Strategy
Garden Mums Finish Strong!
Garden Mum PGR Options
Garden Mum Pests Beyond the Routine
Garden Mums Pushing back on Pythium
Graphical Tracking for Poinsettias
Horticultural Oils Worth Another Look
Identifying, Preventing, and Correcting Iron Deficiency for Mums
Insect and Mite Pest ID Refresher
Integrating BCAs for Poinsettias
Iron Deficiency Spring Crops
Microbial Insecticides - Making the Most of Them
Midseason Sanitation
Mum Field Maintenance for Drip Lines
Plan Ahead for Impatiens Downy Mildew
An Overview of Plant Dips
Poinsettias - Avoiding Late Season Problems
Poinsettias - Insecticide Based Whitefly Control
Powdery Mildew
Pythium Resistance Best Practices
Raising and Lowering Soil pH
Reducing Fertilizer Use - Micronutrients In Focus
Rhizophagy - A New Understanding
Summer Weeds ID and Prevention
The Three M's of Poinsettias
Tips for Identifying and Solving Plant Problems Virtually
Western Flower Thrips Control on Greenhouse Ornamentals Insecticides
Western Flower Thrips Control - Vegetable Transplants
Winter Weeds
Wonderful World of Silicon in Hort
Xanthomonas, Bacterial Blight of Geranium