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Sweet Corn

Sweet Corn Sweet corn is popular with consumers and growers alike. New York typically ranks in the top 5 producing states with over 19,000 acres of fresh market (2014 Vegetable Summary) and approximately 10,000 acres of processed product grown annually.

A range of varieties are available to cover the growing season and needs of each market. Fresh market corn may be planted in March under plastic or later on bare ground. Planting of processing sweet corn in New York begins around May 1st with varieties selected to maintain a steady supply into mid-September.

Cornell Cooperative Extension Educators and Cornell faculty work together annually to conduct research on many aspects of sweet corn production in the state. Below you will find educational information and results of our research trials.

Growing for Wholesale: Grading and Packing Guidelines by Crop

Last Modified: August 29, 2019
Growing for Wholesale: Grading and Packing Guidelines by Crop

Grading and packing guidelines are now available for 18 commonly grown specialty crops in NYS: romaine lettuce, acorn squash, broccoli crowns, Brussels sprouts, sweet corn, green peppers, cucumbers, green cabbage, red cabbage, savoy cabbage, cauliflower, eggplant, green beans, jalapenos, poblanos, Hungarian hot peppers, summer squash, and zucchini.


2019 WNY Sweet Corn Pheromone Trap Monitoring

Last Modified: May 1, 2019
2019 WNY Sweet Corn Pheromone Trap Monitoring

Again this year, the Cornell Vegetable Program will be collaborating with the NYS Integrated Pest Management Program to monitor the flights of European corn borer, Corn ear worm, fall armyworm and western bean cutworm. This information is used by NYS IPM to create weekly reports providing scouting and threshold information for fresh market sweet corn and links to resources on the major sweet corn insect and disease pests. Additionally, the information is used by the Cornell Vegetable Program to advise dry bean growers of the threat of western bean cutworm to their crop.


Video and Final Report: Managing Wildlife Damage in Sweet Corn

Last Modified: July 19, 2018
Video and Final Report: Managing Wildlife Damage in Sweet Corn

Learn more about the on-farm evaluations of new tools -- chemical control, air dancers, scare-eye balloons, and detasseling -- for managing bird damage in sweet corn fields conducted by the CCE Cornell Vegetable Program in 2017 in this video and newly released final report.


Video: New York State Produce Auctions

Last Modified: March 8, 2018
Video: New York State Produce Auctions

Currently, there are 8 produce auctions in New York State. These auctions are aggregation points that allow local farmers to sell their produce in wholesale lots to buyers from across the region. To document the economic impact of produce auctions on agriculture, local businesses, family farms, and produce buyers, the Cornell Vegetable Program worked with Harvest New York to survey top sellers and buyers.

A new Cornell Vegetable Program video shares general information about produce auctions, how buyers and sellers use the auctions to expand their businesses, and how local communities benefit from them.


Video: Flea Beetles

Last Modified: June 5, 2017
Video: Flea Beetles

Flea beetles are a common vegetable pest affecting peppers, cucurbits, sweet potato, potato, peas, beans, beets, tomato, corn, turnip, pumpkin, melon, eggplant, and others. This short video gives you some general information about this pest.

Northern Corn Leaf Blight in Sweet Corn

Julie Kikkert, Team Leader, Extension Vegetable Specialist
Cornell Vegetable Program

Last Modified: August 8, 2016
Northern Corn Leaf Blight in Sweet Corn

Over the past 5 years, Northern Corn Leaf Blight (NCLB) has become a common occurrence in field and sweet corn in New York State. Researchers at Cornell University are working to determine why this disease has become more prevalent. Current hypotheses include: 1) new races of the fungus, 2) new corn hybrids may be more susceptible, 3) weather patterns that favor disease, and 4) changes in the larger cropping picture. There may be a sort of an "arms race" between new races of the fungus and new corn hybrids. Western NY has seen an increase in field corn being grown and increased disease in field corn creates additional inoculum for sweet corn in the region. If NCLB becomes severe, yields may be reduced. Fresh market sweet corn growers may also be concerned with lesions that appear on the husks, as the corn may be less marketable.

Guideline Tools: Weed Management in Sweet Corn, 2015

Darcy Telenko, Extension Vegetable Specialist
Cornell Vegetable Program

Last Modified: June 1, 2015
Guideline Tools: Weed Management in Sweet Corn, 2015

This reference sheet lists the herbicides that are labeled for sweet corn in New York and which species are controlled, as well as other important considerations and photos of weeds. While this is a handy references, it is critical to read the product labels thoroughly.

Responding to Hailstorms

Crystal Stewart-Courtens, Extension Vegetable Specialist
Eastern New York Commercial Horticulture

Last Modified: June 26, 2013
Responding to Hailstorms

While no one wants to think about the possibility of hail hitting their beautiful crops just as they start to respond to the heat and take off, the likelihood that we will see more hail seems pretty high. So let's talk about it.

O-zone Injury on Vegetables

Crystal Stewart-Courtens, Extension Vegetable Specialist
Eastern New York Commercial Horticulture

Last Modified: August 22, 2012
O-zone Injury on Vegetables

Hot, humid weather with stagnant air masses may lead to ozone damage on crops. Ozone warnings were recently issued for much of New York. These warnings are intended for people with respiratory problems and let them know they should limit their outdoor activity and try to stay as much as possible in air-conditioned locations. These warning are also a good indicator that ozone damage may occur in plants.

Wild Proso Millet

Julie Kikkert, Team Leader, Extension Vegetable Specialist
Cornell Vegetable Program

Last Modified: March 20, 2012
Wild Proso Millet

Wild proso millet is present in NY and can be a problem weed in sweet corn and other vegetable crops. Learn how to identify this weed on your farm.


more crops
Asparagus

Asparagus

Beets

Beets

Broccoli

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

Upcoming Events

Announcements

Agricultural Workforce Resources for COVID-19

The Cornell Agricultural Workforce Development team has dedicated a page of their website to resources, information, and news releases related to COVID-19. Produce farms should review the resources to protect their workforce, their business, and their markets.

How to Take a Photo for Crop Diagnostics

With the current push to work remotely, using pictures to quickly address production questions has a lot of appeal and utility but the images must be of high quality.

In How to Take a Photo for Crop Diagnostics, readers will learn:
  • What makes a high quality image?
  • Things you should know
  • Different problems need different images
  • Steps for taking a high quality image
  • Pro tips
...Plus there a several side-by-side comparisons of poor quality photos versus high quality images with tips on what changes the photographer made to take the better photo. 

Cornell Commercial Vegetable Guidelines Available

The 2020 Cornell Integrated Crop and Pest Management Guidelines for Commercial Vegetable Production are now available!

Written by Cornell University specialists, this publication is designed to offer producers, seed and chemical dealers, and crop consultants practical information on growing and managing vegetable crops in New York State. Topics include general culture, nutrient management, transplant production, postharvest handling, organic production, and managing common vegetable crop pest concerns. A preview of the Vegetable Guidelines can be seen online.

Highlighted changes in the 2020 Vegetable Guidelines include: 
  • Updated pesticide options for economically important vegetable crop pests.
  • Completely revised weed management chapter.
  • Updated online crop and pest management resources.
Cornell Crop and Pest Management Guidelines are available as a print copy ($41), online-only access ($41), or a package combining print and online access ($57.50). Shipping charges will be added to your order. Cornell Guidelines can be obtained through many local Cornell Cooperative Extension offices, or from The Cornell Store at Cornell University or call (844) 688-7620.


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