Reference Materials
- Horticulture Care Morton Arboretum
- Tree and Plant Diseases Morton Arboretum
- Tree and Plant Insect Pests Morton Arboretum
- Search Trees and Plants Morton Arboretum
- Invasive Insect Pests omafra
- List of Active Ingredients Authorized for Cosmetic Uses In Ontario
- Pesticide Regulations Canada
- Diseases and Pests Government of Canada
- Using Growing Degree Days For Insect Management University of New Hampshire
- Pests and Problems Missouri Botanical Garden
- Insect and Disease Factsheets U of Maine
- BugGuide.net insect ID
- Cornell Plant Disease Fact Sheets
- Cornell Vegetable Growing Guides
- Cornell Vegetable MD Online
- Frost-date calculator Canada
- Frost-date calculator U.S.A.
- Is This Plant a Weed? tool
- Northwest Coalition for Alternatives to Pesticides
- Rutgers Weed ID tool
- Weed ID and Management/UC Davis
- Weed ID tool/University of Illinois
- Ontario Invasive Plant Council
- Ontario’s Invading Species
- FineGardening Pronunciation Guide
- International Society of Arboriculture > Publications
- Insect Glossary (ubc.ca)
- vPlants – Plant Glossary
- Grow me instead The Ontario Invasive Plant Council
Pesticides
- ORGANOCIDE® BEE SAFE Insect Killer (allowed for home use in Ontario)
- ORGANOCIDE® BEE SAFE 3-in-1 Garden Spray (allowed for home use in Ontario)
- Safers Trounce an organic insecticide. Active ingredients are potassium salts of fatty acids 20%, pyrethrins 0. 2% (not available in Ontario and New Brunswick).
- BotaniGard ES: a biological insecticide containing Beauveria bassiana strain GHA, an entomopathogenic fungus (available for use in Ontario but not for home gardeners).
Mycorrhizae
- MycoStim™ is a biological soil and root inoculant with beneficial Mycorrhizae.
Plant Societies
- American Boxwood Society
- American Conifer Society
- American Hosta Society
- American Hydrangea Society
- American Iris Society
- American Ivy Society
- American Rose Society
- Cactus and Succulent Society of America
- Herb Society of America
- Heritage Rose Foundation
- International Lilac Society
- Magnolia Society International
- Native Plant Trust (former New England Wild Flower Society)
- North American Lily Society
- Organic Seed Alliance
- North American Butterfly Association
Tools
Fungicides
- Roundup Alternatives
- SERENADE GARDEN Broad-spectrum fungal and bacterial control. Active ingredient QST 713 strain of Bacillus subtilis (allowed for home garden use in Ontario).
- ORGANOCIDE® Plant Doctor® Systemic Fungicide earth-friendly broad spectrum disease control and preventative.
- Streptomycin an antibiotic that works by inhibiting the growth of bacteria. (Streptomyces acidiscabies strain rl-110t and thaxtomin are allowed for Ontario home gardeners.)
- Actinovate active ingredients symbiotic beneficial bacterium, Streptomyces lydicus WYEC108 (available in Ontario but not for home gardeners).
- Myclobutanil (Immunox) available in Ontario but not for home gardeners.
- Captan phthalimide class of fungicides (not available to home gardeners in Ontario).
- Bordo (a copper based fungicide). Following is a recipe for Bordo mix from the Gov. of Canada. (2 oz. copper sulfate to 1 gal. of water and 3 oz of hydrated lime in 2 gal. of water. Pour the copper sulfate solution into the lime water and strain through a cheese cloth. Use the solution immediately after mixing and also fresh lime is essential not some left over from the previous season. (Allowed for Ontario home gardeners.)
Horticulture For Home Gardeners 