Onions
Onions are one of the most important vegetable crops in New York State with annual sales of approximately $52 million. New York accounts for 97% of the onion production in the North Eastern United States and ranks sixth in the nation. Approximately 12,000 acres of yellow pungent cooking onions are grown from direct seed, predominantly on organically rich muck soils. This crop is stored and marketed until April. Sweet and red varieties are also grown, mostly from transplants. Hundreds of small-scale diversified farms grow onions intensively on plastic beds on less than an acre. These onions can grow very large and be lucrative in the market place where they are sold through produce auctions, farmer's markets, roadside stands and CSAs.Continued intensive production of onions in New York has led to an array of perennial pest challenges, as well as the introduction of new pests, so that management of the onion complex in New York requires a very strategic research-based approach. Cornell Cooperative Educators and Cornell faculty work together to conduct research on many aspects of onion production in the state. Below you will find educational information and results of our research trials.
Cornell Onion Fungicide "Cheat Sheet" for Leaf Diseases, 2018
Christy Hoepting, Extension Vegetable Specialist
Cornell Vegetable Program
This chart provides information on fungicides available for use in New York in 2018 in onions for control of leaf diseases including Botrytis Leaf Blight (BLB), Stemphylium Leaf Blight (SLB), and Downy Mildew (DM). Rotation restrictions and maximum allowable per season are provided.
Revised EPA and NYS DEC Registration for Surchlor for Use on Onions
From Steve Beer, Department of Plant Pathology and Plant-Microbe Biology, Cornell:
EPA and NYSDEC revised the registration and required label for Surchlor to reduce bacterial rot. The revision provides for separate sprays of Surchlor, rather than mixes with other materials that likely would inactivate the anti-bacterial activity of sodium hypochlorite.
Guidelines for 2018 Onion Thrips Management in Onion
Christy Hoepting, Extension Vegetable Specialist
Cornell Vegetable Program
New York has a variety of registered insecticide products that can successfully control onion thrips. This flowchart provides several different insecticide sequence options for controlling onion thrips in 2018.
More Onions Content
Video: New York State Produce Auctions
Cold Storage Chart and Reference Guide to Commercial Vegetable Storage
Crop Cooling and Storage
2015 Stemphylium Leaf Blight Fungicide Trial Summary
Scouting for Onion Thrips
2014 Trial Results: Stemphylium leaf blight and downy mildew in onion
Strategic Management of Onion Thrips in Onions, July 2015
Fall Chemical Burn Down of Perennial Sow Thistle in Onions, 2013 Trial Results
In-Season Management of Perennial Sow Thistle in Onions, 2013 Trial Results
In-Season Management of Perennial Sow Thistle, 2013 Results (Part II)
Onion Crop Tolerance to Stinger (a.i. clopyralid)
Relative Performance of Onion Fungicides
Responding to Hailstorms
Role of Adjuvants in Bacterial Diseases of Onions
Spring Application of Winter Rye Grain for Weed Control in Summer Vegetables
2009 Elba Muck Soil Nutrient Survey Summary
» View Complete List of Onions Content
Asparagus
Beets
Broccoli
Brussels Sprouts
Cabbage
Carrots
Cauliflower
Cucumbers
Dry Beans
Eggplant
Ethnic Vegetables
Garlic
Horseradish
Kohlrabi
Leeks
Lettuce / Leafy Greens
Melons
Onions
Parsnips
Peas
Peppers
Potatoes
Pumpkins / Gourds
Radishes
Rhubarb
Rutabaga
Snap Beans
Squash - Summer
Squash- Winter
Sweet Corn
Sweet Potatoes
Tomatoes
Turnips
Upcoming Events
Women in Agriculture Discussion Group: Urban Farming
May 6, 2019
Monday, 6:30 - 8:00 PM
Buffalo, NY
Each monthly Women in Ag discussion group meeting will feature an established, innovative Farm-her leading the group on a tour of her operation and sharing her expertise on business management and production. Several guest speakers, as well as Cornell Vegetable Program staff, will be brought in to act as resource people for developing solutions to common production challenges.The May 6 meeting will cover positive public relations and navigating municipal ordinances in urban farming. The meeting will be hosted by Mayda Pozantides (Groundwork Market Garden) and Allison DeHonney (Urban Fruits & Veggies). Participants will learn about production in urban soils and how to adapt farming techniques for urban environments.
Women in Agriculture Discussion Group: Small Fruit & Vegetable Production plus Insect Control
July 15, 2019
Monday, time TBA
East Aurora, NY
Each monthly Women in Ag discussion group meeting will feature an established, innovative Farm-her leading the group on a tour of her operation and sharing her expertise on business management and production. Several guest speakers, as well as Cornell Vegetable Program staff, will be brought in to act as resource people for developing solutions to common production challenges.The July 15 meeting will cover small fruit production and insect control led by Elizabeth Buck, CCE Cornell Vegetable Program, and Abby Seaman, NYS IPM Program. The meeting will be hosted by Gayle and Naomi Thorpe (Thorpe's Organic Family Farm). Gayle and Naomi will share their experiences managing a diversified organic farming operation and family farm transitions.