Know what diseases occur in New York and elsewhere in the northeastern US
- Vegetable disease factsheets – Images, diagnostic information, management, etc.
- Organic Production Guides for Vegetables
- Commercial Vegetable Management Guidelines for NY – covers diseases and insect pests occurring in N.Y.
Obtain accurate diagnosis.
General tips on diagnosing plant diseases
Plant Disease Diagnostic Laboratories:
Resources on diseases and their management prepared by Meg McGrath:
General:
- Top facts to know about managing vegetable diseases
- Biology basics: plant diseases and management
- General management guidelines
- YouTube presentation on plant disease management for organic systems made at VABF 2015 Conference
- Presentation on vegetable diseases and management made July 2019
- Presentation on managing diseases made at NOFA-NY 2020 conference
Specific Management Practices and Tools:
- Resistant varieties
- Hot-water treatment for seed-borne pathogens
- Biopesticides: General information and product lists
Presentation at BiocontrolsEast in 2018
Presentation + handouts at NOFA-NY 2019 - Efficacy results from McGrath’s research at LIHREC
- Efficacy results from University evaluations of organic products are in an excel file at the Biopesticides webpage.
- Copper fungicides
Specific Diseases:
- Vegetable disease factsheets – most have information about specific diseases and their management for both organic and conventional production, as well as photographs.
- Downy mildew diseases: article, presentation
- Late blight in tomato and potato – See also Late blight on tomato photo gallery/information page.
- Phytophthora Blight
- Biopesticides for Managing Phytophthora Blight in Cucurbits and Other Vegetables
- Winter greens: webpage| proceedings | presentation
Other resources on management
- Organic Production Guides for Vegetables
- Resource Guide for Organic Insect and Disease Management
- Video: Identifying and Scouting for Late Blight on Organic Farms
- Searchable database of downloadable organic and conventional pesticides registered in New York (except products exempt from registration)
- Searchable database with federal labels for most organic and conventional fungicides
- Lists of products verified to meet organic standards by OMRI
The OMRI Products List booklet can be downloaded at this webpage. To search for specific products in the on-line database, click on ‘Search’ in the bottom left section of the webpage.