Cornell Vegetable Program Enrollment

Program Areas

  • Food Safety
  • Variety Evaluation
  • Market Development
  • Pest Management
  • Cultural Practices

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  • Educational Meetings & Conferences
  • In-Field Educational Opportunities
  • On-Farm Research Trials

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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

Worker Protection Standard Training & DEC Special Permit Training (Wayne County)

April 4, 2017
8:30 AM - 12:30 PM English Session / 1:00 PM - 5:00 PM Spanish Session
Newark, NY

Worker Protection Standard Training & DEC Special Permit Training (Orleans County)

April 5, 2017
8:00 AM - 12:00 PM English & Spanish sessions
Albion, NY

Most Recent Onions Content

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.

Cornell Onion Fungicide "Cheat Sheet" for Leaf Diseases, 2016

Christy Hoepting, Extension Vegetable Specialist
Cornell Vegetable Program

Last Modified: August 9, 2016
Cornell Onion Fungicide

This chart provides information on fungicides available for use in New York in 2016 in onions for control of leaf diseases including Botrytis Leaf Blight (BLB), Purple Blotch (PB), Stemphylium Leaf Blight (SLB), and Downy Mildew (DM). Rotation restrictions and maximum allowable per season are provided.


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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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

Worker Protection Standard Training & DEC Special Permit Training (Wayne County)

April 4, 2017
8:30 AM - 12:30 PM English Session / 1:00 PM - 5:00 PM Spanish Session
Newark, NY

Just like last year, Special Permits (SP) will only be issued for 11 specific pesticide labels and SP trainees will have to pass a test. This will relieve the certified pesticide applicator from "on-site within voice contact" supervision of non-certified pesticide applicators when they are handling federally-restricted-use pesticides for which they hold a Special Permit. The labels that will be covered include Lorsban Advanced, Endigo ZC, Warrior II with Zeon Technology, Agri-Mek SC, Beseige, Gramoxone SL 2.0, Leverage 360, Danitol 2.4EC, Mustang Maxx, Asana XL, and Lannate LV.

Workers requiring general pesticide training/Agricultural Worker Protection Standard Handler training who do not need special permits are welcome to take the class; they will not be tested and will receive a course participation certificate.
view details

Worker Protection Standard Training & DEC Special Permit Training (Orleans County)

April 5, 2017
8:00 AM - 12:00 PM English & Spanish sessions
Albion, NY

Just like last year, Special Permits (SP) will only be issued for 11 specific pesticide labels and SP trainees will have to pass a test. This will relieve the certified pesticide applicator from "on-site within voice contact" supervision of non-certified pesticide applicators when they are handling federally-restricted-use pesticides for which they hold a Special Permit. The labels that will be covered include Lorsban Advanced, Endigo ZC, Warrior II with Zeon Technology, Agri-Mek SC, Beseige, Gramoxone SL 2.0, Leverage 360, Danitol 2.4EC, Mustang Maxx, Asana XL, and Lannate LV.

Workers requiring general pesticide training/Agricultural Worker Protection Standard Handler training who do not need special permits are welcome to take the class; they will not be tested and will receive a course participation certificate.
view details

Produce Safety Alliance Grower Training Course + Optional Food Safety Plan Writing Workshop

April 5 - April 6, 2017
April 5: 8:00 AM - 5:00 PM; April 6: 8:00 AM - 3:00 PM
Batavia, NY

Fruit and vegetable growers and others interested in learning about produce safety, the Food Safety Modernization Act (FSMA) Produce Safety Rule, Good Agricultural Practices (GAPs), and co-management of natural resources and food safety should attend this food safety training. Individuals who participate in this course are expected to gain a basic understanding of microorganisms relevant to produce safety and where they may be found on the farm, how to identify microbial risks, practices that reduce risks, and how to begin implementing produce safety practices on the farm, parts of a farm food safety plan and how to begin writing one, and requirements in the FSMA Produce Safety Rule and how to meet them.

In addition, the PSA Grower Training Course is one way to satisfy the FSMA Produce Safety Rule requirement outlined in section 112.22(c) that requires
'At least one supervisor or responsible party for your farm must have successfully completed food safety training at least equivalent to that received under standardized curriculum recognized as adequate by the Food and Drug Administration.'
view details
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Announcements

Provide Input on IPM Practices and Adoption in NY

Darcy Telenko is coordinating the Vegetable Crop Pest Program in New York with the Integrated Pest Information Platform for Extension and Education (iPiPE) Project. As part of the program, a new set of tools is currently being developed to help you manage crop pests and increase your profitability.

A survey has been developed to gather your insights to help shape the development of these tools to best support your pest management efforts. In addition, the results of the survey will help the Cornell Vegetable Program and other Extension professionals get a better picture of pest management practices among fresh market vegetable growers in New York. Read more about this survey.

Hoepting Wins 2016 Excellence-in-IPM Award

For her exemplary work on behalf of farmers, not just in the rich muck-soil region of western New York but statewide and nationally, Christy Hoepting [CCE Cornell Vegetable Program Specialist] has earned an Excellence in IPM award from the New York State Integrated Pest Management Program (NYS IPM) at Cornell University. IPM weaves together a broad range of tactics that minimize the environmental, health and economic risks of pests and pesticides both.

"Christy is a star in Cornell Cooperative Extension," says Brian Nault, a professor of entomology at Cornell. "She's a gifted educator and advocate, more passionate and successful in promoting IPM practices than just about anyone I know." While onions are Hoepting's main research focus -- they're a high-value crop for New York, with annual sales upward of $40 million -- growers in western New York also welcome her expertise in cabbage, broccoli and garlic.

Hoepting has conducted hundreds of on-farm research trials in plant pathology, entomology, weed science, cultural practices and crop nutrition, presented at scores of stakeholder and scientific meetings, and published scores of articles and research papers. It's also why she scouts farm fields relentlessly, tracking every movement of insect and disease pests.

"Christy does her research on the farm in growers' fields," says onion grower Matt Mortellaro. "It makes us confident that her work will apply to our situations. She's extremely responsive, and she's always listening."

Christy Hoepting received her award on March 8 at CCE Cornell Vegetable Program's "Elba Muck Region Onion School" in Albion, NY.

Empire State Producers EXPO Proceedings Available

Proceedings from the Empire State Producers EXPO conference from 2011-2017 are available online. 

2017 Cornell Vegetable Guidelines Available

The 2017 edition of the Cornell Integrated Crop and Pest Management Guidelines for Commercial Vegetable Production is now available. This annual publication provides up-to-date vegetable crop production information for New York State. It is designed as a practical guide for vegetable crop producers, crop consultants, ag chemical dealers, and others who advise vegetable crop producers.

In addition to the annually revised pesticide and crop production information, highlighted changes in this edition of the
Vegetable Guidelines include:
  • Addition of Dickeya blackleg on potato as a disease of concern.
  • Updated regulatory considerations for organic vegetable production.
  • Revised European corn borer management strategies for beans and potatoes.
The Cornell Guidelines are available as a print copy ($41 plus shipping), online-only access ($41), or a package that combines print and online access ($57.50 plus shipping). Cornell Guidelines can be purchased through your local Cornell Cooperative Extension office or from the Cornell Store at Cornell University. To order from the Cornell Store, call (844) 688-7620 or order online.

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