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NYC Market Growers Update

Last Modified: May 1, 2023

NYC Market Growers Update is an occasional email publication focused on production-oriented resources for NYC urban farmers who are growing for market or growing at a similar scale (e.g. nonprofit farms growing for food banks). Updates and announcements from the Cornell Cooperative Extension Urban Agriculture Program are provided too.

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2023 Archived Issues

2/6 - NYC Market Growers Update
Downy mildew-resistant cucumbers and basil


2022 Archived Issues

11/11 - NYC Market Growers Update
Spotted lanternfly / aphids / downy mildew-resistant cucumbers

10/13 - NYC Market Growers Update
Basil chilling damage / aphids / cover crops

8/15 - Heads Up: Pest & Disease Alerts
Spotted lanternfly / twospotted spider mite / cucurbit downy mildew

6/16 - NYC Market Growers Update
Aphids / cabbageworm / onion thrips / twospotted spider mite / *guide to ordering predatory mites* / cabbage whitefly / bacterial leaf spot on peppers / bacterial speck on tomato

4/19 - NYC Market Growers Update
Brassica break and early season pests

2/24 - NYC Market Growers Update
2022 NYC Crop Planning Guide -- vegetable diseases, pests to watch for in 2022


2021 Archived Issues

12/3 - NYC Market Growers Update
announcements

11/12 - NYC Market Growers Update
ginger trial results

9/15 - NYC Market Growers Update
spotted lanternfly / brassica pests (cabbageworm, whitefly, harlequin bug) / tomato pests/diseases (twospotted spider mite, bacterial speck) / cucumber and squash pest/disease (downy mildew, powdery mildew, squash bug)

7/26 - NYC Market Growers Update
cabbage whitefly / cabbageworms / black rot / tomato diseases / onion thrips / pigweed flea beetle (callaloo) / basil downy mildew

7/14 - Heads Up: Cucumber Problems
cucurbit downy mildew / twospotted spider mite

5/19 - NYC Market Growers Update
farmer-to-farmer Slack channel / cabbage whitefly / pillbug (roly-poly) on radishes & turnips / spinach leafminer / flea beetles

1/8 - NYC Market Growers Update
ginger trials


2020 Archived Issues

8/7 - NYC Market Growers Update
twospotted spider mite / tomato diseases (bacterial canker & speck, fusarium) / brassica pests / black rot / flea beetle on callaloo

6/16 - NYC Market Growers Update
aphids / potato leafhopper

4/2 - NYC Market Growers Update
aphids on winter greens

2/19 - NYC Market Growers Update
2020 NYC Crop Planning Guide -- basil / cucumbers, squash, melons / tomatoes / kale, collards, other brassicas / peppers


2019 Archived Issues

12/03 - NYC Market Growers Update
NYC Agricultural Soil Survey / soil testing and nutrient levels

10/15 - NYC Market Growers Update
harlequin bug / cabbageworms / whitefly / cabbage aphids

09/19 - NYC Market Growers Update
basil downy mildew / twospotted spider mite / whitefly / cabbageworms / harlequin bug

07/26 - NYC Market Growers Update
Bacterial canker on tomatoes / blossom end rot and water stress / onion thrips 

07/18 - Heads Up: Twospotted Spider Mite

07/09 - NYC Market Growers Update
Black rot on brassicas /  basil downy mildew / bacterial diseases on tomatoes

06/11 - NYC Market Growers Update
early-season nutrient deficiencies / cabbageworms / flea beetles / potato leafhopper

05/01 - NYC Market Growers Update
tomato bacterial diseases / grafting cucumbers onto squash

03/15 - NYC Market Growers Update
NYC Agricultural Soil Survey / hydroponic nutrient deficiencies

02/22 - NYC Market Growers Update
cabbage aphids




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Upcoming Events

Companion Planting in the Food Garden--with Mushrooms!

November 12, 2025
6:00 PM - 8:00 PM
Brooklyn, NY

Companion planting (or intercropping) is an ancient method of increasing yields and maximizing growing space. Learn how to diversify your garden harvest while enjoying the mutual benefits of intercropping with mushrooms, such as improving soil health and water retention. Plan next spring's garden with guidance from Urban Agriculture Specialist Yolanda Gonzalez on growing three different types of mushrooms, from site selection to harvest. Take home a native plant to try!

NYC Mushroom Summit

December 5, 2025
9:00 AM - 3:30 PM
New York, NY

The NYC Mushroom Summit, hosted by the Cornell Small Farms Program, will convene a regional network of mushroom farmers and educators from indoor, outdoor, and community production systems; restaurateurs, food creatives and chefs; and extension, government and industry representatives. This diverse group will work together to determine grower research and marketing needs, interdisciplinary collaboration opportunities, and community building initiatives. Group conversations and presentations will be structured around value added products, frontiers in mycology research, and peer-to-peer learning.

Pruning & Fruit Tree Health 101

December 13, 2025
11:00 AM - 12:30 PM
Cambria Heights, NY

Join us at Cambria Heights Community Garden for a free, hands-on workshop with CCE Harvest NY Urban Garden Specialist Karen Guzman. Participants will learn about basic tree maintenance and pruning techniques. Proper winter care helps trees conserve energy, prevent damage from cold weather, and prepare for growth in the spring.  

Announcements

New York Urban Farms Sustainable 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.