Cornell Vegetable Program Enrollment

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Onions

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.

Relevant Event

2018 Empire State Producers EXPO

Event Offers DEC Credits

January 16 - January 18, 2018
1.25 hr sessions throughout each day
Syracuse, NY

Most Recent Onions Content

Cornell Onion Fungicide "Cheat Sheet" for Leaf Diseases, 2017

Christy Hoepting, Extension Vegetable Specialist
Cornell Vegetable Program

Last Modified: July 5, 2017
Cornell Onion Fungicide

This chart provides information on fungicides available for use in New York in 2017 in onions for control of leaf diseases including Botrytis Leaf Blight (BLB), Purple Blotch (PB), Stemphylium Leaf Blight (SLB), and Downy Mildew (DM). This year, more fungicides and detailed efficacy ratings are provided per BLB, SLB, and DM from Cornell trials. Rotation restrictions and maximum allowable per season are provided. 

Cold Storage Chart and Reference Guide to Commercial Vegetable Storage

Robert Hadad, Extension Vegetable Specialist
Cornell Vegetable Program

Last Modified: December 13, 2016
Cold Storage Chart and Reference Guide to Commercial Vegetable Storage

Commercial vegetable growers will find a Cold Storage Chart by crop type with temperature and relative humidity recommendations. The maximum number of weeks that the crop can be held under ideal conditions is provided as well.

Adapted from the USDA Bulletin #66, The Commercial Storage of Fruits, Vegetables, and Florist and Nursery Stock, growers will find information on quality, grading, sizes, and packaging, chilling and storage, and post-harvest pathology of vegetables.

Crop Cooling and Storage

Robert Hadad, Extension Vegetable Specialist
Cornell Vegetable Program

Last Modified: September 29, 2016
Crop Cooling and Storage

On-Farm Cold Storage of Fall-Harvested Fruit and Vegetable Crops is an in-depth look at the planning and designing cooling for late season and winter storage but it also is useful for general cooling as well. This was written by Scott Sanford, Distinguished Outreach Specialist, UW-Extension, and John Hendrickson, Outreach Program Manager, Center for Integrated Agricultural Systems, University of Wisconsin-Madison.


More Onions Content

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
Video: New York State Produce Auctions
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
Exploring the Relationship Between Nitrogen, Plant Spacing and Bacterial Disease
Preventing Muck Soil Erosion by Reducing Tillage in Onion Production
O-zone Injury on Vegetables
» View Complete List of Onions Content
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Asparagus

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Beets

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Broccoli

Brussels Sprouts

Brussels Sprouts

Cabbage

Cabbage

Carrots

Carrots

Cauliflower

Cauliflower

Cucumbers

Cucumbers

Dry Beans

Dry Beans

Eggplant

Eggplant

Ethnic Vegetables

Ethnic Vegetables

Garlic

Garlic

Horseradish

Horseradish

Kohlrabi

Kohlrabi

Leeks

Leeks

Lettuce / Leafy Greens

Lettuce / Leafy Greens

Melons

Melons

Onions

Onions

Parsnips

Parsnips

Peas

Peas

Peppers

Peppers

Potatoes

Potatoes

Pumpkins / Gourds

Pumpkins / Gourds

Radishes

Radishes

Rhubarb

Rhubarb

Rutabaga

Rutabaga

Snap Beans

Snap Beans

Squash - Summer

Squash - Summer

Squash- Winter

Squash- Winter

Sweet Corn

Sweet Corn

Sweet Potatoes

Sweet Potatoes

Tomatoes

Tomatoes

Turnips

Turnips

more crops
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Upcoming Events

NY Veterans in Agriculture Summit

November 29, 2017
8:30 AM - 4:30 PM
Syracuse, NY

Come gather for a day of education and networking. Learn about resources that are available to farmer veterans in New York and participate in educational sessions on topics including animal health, financial management, high tunnels, and business planning. 
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Second Annual Cut Flower Conference

December 1, 2017
8:00 AM - 4:00 PM
Rensselaerville, NY

Cornell Cooperative Extension's Capital Area Agriculture and Horticulture Program, announces their upcoming Second Annual Cut Flower Conference. The initial Cut Flower Conference, held in 2016, was very popular with established and beginning cut flower growers and growers considering adding cut flowers to their diversified farms.
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2017 Processing Vegetable Crops Advisory Meeting

Event Offers DEC Credits

December 13, 2017
9:30 AM - 2:30 PM
Batavia, NY

All processing vegetable growers and industry members are invited to attend. Discuss the 2017 growing season and management concerns. Reports and discussion of the 2017 Projects funded by the New York Vegetable Research Council/Association. Review priorities and the role of the advisory group in applications for state and federal grants. Give your input on the format of future advisory meetings and future educational programs. 
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Announcements

Available: 2017 Certified Seed Potato Directory

The 2017 NYS Certified Seed Potato Crop Directory is now available. There is a wealth of information on NYS potato seed certification, as well as on the varieties grown for certification in 2017. The varieties include standards for processing and tablestock, newer varieties and numbered lines, and specialty/heirloom varieties. Brief summaries of the varieties' maturity, appearance, yield potential, and major disease susceptibility are included. Contact info for the growers with seed supplies of each variety is included. There is also a listing of the inspectors from the NYS Department of Agriculture and Markets in Albany and Syracuse.

Growing for Wholesale Guidelines Available

Grading and packing guidelines are now available for 16 commonly grown specialty crops in NYS: broccoli crowns, Brussels sprouts, corn, green peppers, cucumbers, green cabbage, red cabbage, savory cabbage, cauliflower, eggplant, green beans, jalapenos, poblanos, Hungarian hot peppers, summer squash, and zucchini.

Acceptable quality standards and common defects that should be sorted out on the grading line are depicted in these resources, both visually and in outline form. Find all of the grading sheets here.

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