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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 Events

2019 Processing Vegetable Crops Advisory Meeting

Event Offers DEC Credits

December 17, 2019
9:30am - 12:10pm, 1pm - 2pm, and 2pm - 3:30pm
Batavia, NY

2020 Finger Lakes Produce Auction Education Meeting

Event Offers DEC Credits

January 2, 2020
9:00 AM - 2:00 PM
Penn Yan, NY

2020 Ontario Produce Auction Winter Growers Meeting

Event Offers DEC Credits

January 8, 2020
9:00 AM - 2:30 PM
Stanley, NY

2020 Empire State Producers EXPO

Event Offers DEC Credits

January 14 - January 16, 2020
1.25 hr sessions throughout each day
Syracuse, NY

Most Recent Onions Content

Guidelines for 2019 Onion Thrips Management in Onion

Christy Hoepting, Extension Vegetable Specialist
Cornell Vegetable Program

Last Modified: July 17, 2019
Guidelines for 2019 Onion Thrips Management in Onion

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 2019.


Cornell Onion Fungicide "Cheat Sheet" for Leaf Diseases, 2019

Christy Hoepting, Extension Vegetable Specialist
Cornell Vegetable Program

Last Modified: July 10, 2019
Cornell Onion Fungicide "Cheat Sheet" for Leaf Diseases, 2019

This chart provides information on fungicides available for use in New York in 2019 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

Last Modified: June 28, 2018

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.



More Onions Content

Be on the Lookout for Southern Blight
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
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Upcoming Events

2019 Processing Vegetable Crops Advisory Meeting

Event Offers DEC Credits

December 17, 2019
9:30am - 12:10pm, 1pm - 2pm, and 2pm - 3:30pm
Batavia, NY

view details

2020 Finger Lakes Produce Auction Education Meeting

Event Offers DEC Credits

January 2, 2020
9:00 AM - 2:00 PM
Penn Yan, NY

view details

2020 Ontario Produce Auction Winter Growers Meeting

Event Offers DEC Credits

January 8, 2020
9:00 AM - 2:30 PM
Stanley, NY

view details

Announcements

REGISTER NOW for the Empire State Producers Expo

Registration is open for the 2020 Empire State Producers Expo and Becker Forum

After the Expo, stay in Syracuse for the NOFA-NY Winter Conference. Three great events back-to-back!!

January 13, 2020 • 2020 Becker Forum @ Marriott Syracuse Downtown, 100 E Onondaga St, Syracuse, NY 13202

January 14-16, 2020 • Empire State Producers Expo & Trade Show @ The Oncenter, 800 S State St, Syracuse, NY 13202

January 17-19, 2020 • NOFA-NY'S 2020 Winter Conference @ The Oncenter, 800 S State St, Syracuse, NY 13202


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