Eastern New York Commercial Horticulture Enrollment

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Watch Those Temperatures

Chuck Bornt, Team Leader, Extension Vegetable Specialist
Eastern New York Commercial Horticulture

May 9, 2018

Just another reminder that even though we haven't reached really concerning temperatures yet, temperatures in high tunnels, crops under rowcovers or especially those under clear plastic hoops (such as sweet corn) can get very hot on these gorgeous bright sunny days!   For sweet corn, the larger the plant under that plastic the greater the risk of injury is.  If it gets too hot under that plastic, consider piercing the plastic with a pitchfork or setting up and running the irrigation to cool the soil and plastic.  If it looks like we are in for a long warm stretch, you might consider slitting the plastic and removing it altogether.  The one benefit of using floating rowcovers on sweet corn compared to plastic is you don't have to worry about it getting too hot as the rowcovers naturally breathe and are cooler.  The following information is from Dr. Steve Reiners of Cornell University Department of Horticultural Sciences and can be used as a guide to know when to remove covers before it's too late! 

 "Most of the published temperature guidelines list maximum temperatures at which either vegetative growth becomes limited or reproductive capabilities are threatened, i.e. flowers or fruit fall off. Temperatures at which vegetable plants may die varies and depends not only on the vegetable type but also on other factors such as whether irrigation is being provided or for how long the high temperature occurs.  Also, a transplant will be under much greater stress than a plant that is direct seeded. 

The following table lists temperatures at which severe stress will occur, possibly death, especially if soil moisture is low.  These temperatures refer only to potential crop death.  Temperatures 15 to 20F lower than those listed in the table will result in the loss of flowers and fruit and will negate the positive effects of early warming under row covers."

image 1Chart with various vegetables
image 2Row cover


more crops
Apples

Apples

Apricots

Apricots

Asparagus

Asparagus

Beets

Beets

Blueberries

Blueberries

Broccoli

Broccoli

Brussels Sprouts

Brussels Sprouts

Cabbage

Cabbage

Carrots

Carrots

Cauliflower

Cauliflower

Cherries

Cherries

Cucumbers

Cucumbers

Dry Beans

Dry Beans

Eggplant

Eggplant

Ethnic Vegetables

Ethnic Vegetables

Garlic

Garlic

Grapes

Grapes

Horseradish

Horseradish

Kohlrabi

Kohlrabi

Leeks

Leeks

Lettuce / Leafy Greens

Lettuce / Leafy Greens

Melons

Melons

Nectarines

Nectarines

Onions

Onions

Parsnips

Parsnips

Peaches

Peaches

Pears

Pears

Peas

Peas

Peppers

Peppers

Plums

Plums

Potatoes

Potatoes

Pumpkins / Gourds

Pumpkins / Gourds

Radishes

Radishes

Raspberries / Blackberries

Raspberries / Blackberries

Rhubarb

Rhubarb

Rutabaga

Rutabaga

Snap Beans

Snap Beans

Squash - Summer

Squash - Summer

Squash- Winter

Squash- Winter

Strawberries

Strawberries

Sweet Corn

Sweet Corn

Sweet Potatoes

Sweet Potatoes

Tomatoes

Tomatoes

Turnips

Turnips

more crops

Upcoming Events

High Tech Precision Orchard Spraying

July 20, 2020

Join us the afternoon of July 20th to learn what's new in orchard precision spraying technology. We'll be joined by Dr. Jason Deveau, Dr. Heping Zhu, and Steve Booher.  After their presentations, we will open up the meeting for all three presenters to field questions and comments. 

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Announcements

U-Pick Farm Practices During Covid-19 Pandemic

U-Pick is a critical direct marketing approach for many of our farms and provides
customers with a unique connection to fresh produce grown close to home. In light
of what we understand about the spread of COVID-19, new management practices
will be needed to protect your farm team and your customers. This document
provides recommended practices and communication strategies for U-Pick
operations for the 2020 season.

https://rvpadmin.cce.cornell.edu/uploads/doc_864.pdf

Resources from CCE ENYCHP!

We are developing new ways to connect with the CCE ENYCHP team this year! We have a Youtube page located at this link. Check out videos on Table Grape Production, Pest Updates and the 20 Minute Ag Manager - in 4 Minutes series

We have a Facebook Page here as well as an Instagram page. We keep these places updated with current projects, events, and other interesting articles and deadlines.

There are also text alerts available. Fruit and vegetable farmers in 17 Eastern NY counties can now receive real time alerts on high risk disease and pest outbreaks texted directly to their cell phone. The Eastern NY Commercial Horticulture program, which is supported by local Cornell Cooperative Extension associations, will now offer text alerts to those that enroll in our program in 2019. 

The text alerts will be reserved for important crop alerts that could impact management decisions immediately. For instance, if there were an outbreak of Late Blight in the area, this would be transmitted to vegetable growers.

Farmers can choose the crop for which they wish to receive updates. Additionally they can request that Ag Business Alerts be sent to them. These alerts might include due dates for crop insurance deadlines, market opportunities etc.

If you have questions, please contact enychp@cornell.edu


Podcasts

2020 Biweekly Vegetable News Podcast - Episode 6 7/1/20

July 2, 2020
The July 1st, 2020 edition of the Eastern New York Vegetable News covers the following topics:

Cucurbit Downy Mildew Update (1:05)
Changes to the Paycheck Protection Program (9:10)
Managing Caterpillar Pests in Brassicas (12:53)
Strawberry Renovation (17:56)
Developing a Safety Plan to Comply with NY Forward Phased Re-Opening Requirements (24:12)

Here are links to additional resources mentioned in the episode:

NY Forward Safety Plans
Introductory “how to” video for writing your plan:
https://www.youtube.com/watch?v=V2PH3wCgdhc&feature=youtu.be

Cornell Agricultural Workforce Development NY Forward business safety plan support for farms
https://agworkforce.cals.cornell.edu/ny-forward-business-safety-plan/
• Plan templates
• Guidance and considerations for plan writing
• Links to “how to” videos
• Links to additional resources such as log templates, hand washing station plans, and more
• Webinar recordings

NYS Department of Agriculture and Markets novel coronavirus page: Guidance documents for farm businesses in multiple languages
https://agriculture.ny.gov/coronavirus

Strawberry Renovation
For more in-depth information re: strawberry renovation, visit http://www.hort.cornell.edu/fruit/nybn/newslettpdfs/2014/nybn1306.pdf.

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