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Sweet Corn

Sweet Corn Sweet corn is popular with consumers and growers alike. In 2020, there were 27,000 planted acres in New York, with a farm gate value of $36.9 million (NY Ag Statistics).

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.

Relevant Events

2025 Finger Lakes Auction Winter Growers Meeting

Event Offers DEC Credits

January 2, 2025
Penn Yan, NY

2025 Ontario Produce Auction Winter Growers Meeting

Event Offers DEC Credits

January 15, 2025
Stanley, NY

Laser Scarecrows to Deter Birds in Sweet Corn

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

Last Modified: November 4, 2024
Laser Scarecrows to Deter Birds in Sweet Corn

Are you considering the use of a laser scarecrow to deter birds on your farm? Cornell Cooperative Extension and the University of Rhode Island teamed up to test a research laser scarecrow on sweet corn farms. The fact sheet provides background information, research data, FAQs, and Advantages/Limitations on laser scarecrows.


2024 WNY Sweet Corn Pheromone Trap Monitoring

Last Modified: June 1, 2024
2024 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.


Laser Scarecrows in Sweet Corn Session at the 2021 Empire State Producers Expo

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

Last Modified: July 27, 2021
Laser Scarecrows in Sweet Corn Session at the 2021 Empire State Producers Expo

A recording of the 2021 Empire State Producers Expo session on the use of laser scarecrows to deter birds in sweet corn. Featured speakers are Dr. Rebecca Brown, University of Rhode Island, Jeremy Perkins, Bird Control Group, and Nick Stanton, Stanton's Feura Farm. Chuck Bornt from Cornell Cooperative Extension moderates the session.


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.


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

Mushrooms

Mushrooms

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

2025 Finger Lakes Auction Winter Growers Meeting

Event Offers DEC Credits

January 2, 2025
Penn Yan, NY

At this grower-focused meeting, ag industry experts will discuss pest control in vegetables, weed management strategies and best practices, seed germination, an introduction to foliar nutrient uptake in vegetables, and grouping flowers by growth needs. Plus we'll hear from a grower panel from Kutztown Produce Auction, moderated with NYS specific pest control from Judson Reid.

2.25 DEC recertification credits will be offered in categories 10, 1a, 23, and 24.

2025 Ontario Produce Auction Winter Growers Meeting

Event Offers DEC Credits

January 15, 2025
Stanley, NY

This grower-focused meeting will include information about pesticide applicator recertification and record keeping requirements, disease control in cole crops and vine crops, and using biocontrols for insect management in greenhouses. Several seed and ag input companies will be on-hand to share product news.

2.75 DEC recertification credits will be offered in categories 10, 1a, 23 and 24. CORE credits (0.5) offered too!

Intro to Food Safety and GAPs Training

February 19, 2025
via Zoom,

This virtual workshop will serve two purposes: 

  • For produce farms just interested in learning about farm food safety, this program will introduce principles and best practices.
  • For produce farms look for a GAPs (Good Agricultural Practices) training needed to meet buyer demands for audit/certification, this program will provide that as well.

Announcements

Winter Cover Cropping in High Tunnels

Cornell Cooperative Extension is researching cover crops for high tunnel growers to better manage fertility and improve soil health. Our work has shown that winter cover cropping in high tunnels has the potential to add organic matter, improve soil structure, support microbial activity, and help with nutrient management by scavenging leftover nitrogen and/or fixing nitrogen. This publication, Management Practices for High Organic Matter Soils: Winter Cover Cropping in High Tunnels, shares best practices for winter cover cropping in high tunnels including species selection, planting rates and dates, termination, and cultural management considerations.

Laser Scarecrows to Deter Birds in Sweet Corn

Are you considering the use of a laser scarecrow to deter birds on your farm? Cornell Cooperative Extension and the University of Rhode Island teamed up to test a research laser scarecrow on sweet corn farms.

A laser scarecrow is a device that has one or more laser modules connected to motors. The specifications of the lasers are optimized to the color and motion sensitivity of bird's eyes. When laser beams move across a field, birds become frightened and attempt to move away from the perceived threat. Light from the laser covers an area quickly and moves through the canopy without causing injury to the crop. Research demonstrates that birds do not readily become habituated to the laser.

A laser scarecrow used as the sole deterrent typically results in a significant reduction in crop damage. Combined with an auditory device, damage can be reduced even more. When used as part of an integrated management program for bird control that utilizes habitat management and multiple scare tactics, laser scarecrows can be useful tools for growers of multiple crops. All scare tactics must be deployed before birds find the field. The effectiveness of lasers depends on multiple factors such as bird species, bird populations, habitat and food availability. Lasers are not effective at deterring deer, racoons, coyotes or other mammals.

To learn more, the Laser Scarecrows to Deter Birds in Sweet Corn and Other High-Value Agricultural Crops fact sheet provides background information, research data, FAQs, and Advantages/Limitations on laser scarecrows.

NY Urban Farms Pest Management Fact Sheet Series

Cornell Cooperative Extension has partnered with dozens of urban farms across New York State to demonstrate and evaluate sustainable pest management strategies. Together with farmers, we found success using control methods that prevent or reduce crop losses through exclusion strategies, crop timing, host resistance, the introduction of beneficial organisms, and more. Regardless of management strategy used, common requirements for success include a knowledge of the pest and disease complex, preventative deployment and commitment to the process. The New York Urban Farms Sustainable Pest Management Fact Sheet Series includes case studies highlighting pest management techniques that New York urban farms have found valuable.

NYS Urban Growers Pest Management Needs Assessment

As part of a multi-year project exploring non-spray pest management options that are economically and environmentally sustainable for urban farms, we conducted a needs assessment with urban growers across New York State. The New York State Urban Growers Pest Management Needs Assessment presents findings on current pest management practices, challenges, and topics of future interest.