Watch Those Temperatures
Chuck Bornt, Team Leader, Extension Vegetable Specialist
Eastern New York Commercial Horticulture
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."
Chart with various vegetables
Row cover
Apples
Apricots
Asparagus
Beets
Blueberries
Broccoli
Brussels Sprouts
Cabbage
Carrots
Cauliflower
Cherries
Cucumbers
Dry Beans
Eggplant
Ethnic Vegetables
Garlic
Grapes
Horseradish
Kohlrabi
Leeks
Lettuce / Leafy Greens
Melons
Nectarines
Onions
Parsnips
Peaches
Pears
Peas
Peppers
Plums
Potatoes
Pumpkins / Gourds
Radishes
Raspberries / Blackberries
Rhubarb
Rutabaga
Snap Beans
Squash - Summer
Squash- Winter
Strawberries
Sweet Corn
Sweet Potatoes
Tomatoes
Turnips
Upcoming Events
New York State Agritourism Conference
November 10 - November 11, 2025 : New York State Agritourism Conference
Saratoga Springs, NY
The first-ever New York State Agritourism Conference, hosted by the CCE Agritourism Program Work Team, is designed to support farms in growing successful visitor experiences. This statewide gathering will feature expert-led sessions, peer networking, and practical tools to help farms expand direct sales, education, hospitality, and entertainment offerings.
Date:
- November 10: A full day of educational sessions targeted at beginning or experienced agritourism operators.
- November 11: A half-day, interactive networking session with fellow attendees.
ASL 104sp Seleccion y organizacion del personal (Staffing and Organizing Your Team) taught in Spanish
November 12, 2025 : ASL 104sp Selección y organización del personal (Staffing and Organizing Your Team) in Spanish
ASL104-SP: Selección y organización del personal (Staffing and Organizing Your Team - impartido en español) ¡Inscripciones abiertas!
En este curso identificamos cómo escribir descripciones de puestos disponibles en el trabajo para atraer a los mejores candidatos. Aprenderá a encontrar empleados con un perfil deseado, cómo entrevistar y seleccionar a las personas adecuadas. Descubrirá cómo completar la documentación de nuevos empleados, la autorización de empleo y la contratación de personal (on-boarding): es decir, cómo efectivamente incorporar nuevos empleados al rancho en una manera exitosa y productiva.
Los temas incluyen:
- Convertirse en un lugar de trabajar preferido
- Planear cuántos y qué trabajadores se necesitan
- Diseñar descripciones de trabajos para un mejor reclutamiento
- Cómo evitar favoritismos y discriminación
- Cómo buscar y entrevistar los nuevos trabajadores
- Cómo decidir a quién contratar
- Y cómo dar una buena bienvenida al nuevo trabajador
Inicio del curso: miércoles, 12 de noviembre de 2025
Discusiones en vivo por Zoom: Cada martes 18 de noviembre - 23 de diciembre, de 1:00 a 2:00 p.m. (hora del Este)
ASL 105 Employee Development and Training
November 17, 2025 : ASL 105: Employment Development and Training
ASL105: Employee Development and Training
Three leadership practices are essential for supervisors: setting clear expectations, employee training and development, and providing performance feedback.
In Employee Development and Training you will learn best practices to plan and conduct training that engages employees, supports retention, and helps ensure great quality work. You will also learn how to create a culture of continuous learning and performance improvement through employee development, coaching, and career planning. This is a 6-week online course, taught in English.
Topics include:
- Planning effective training programs
- Onboarding new employees
- On the job training
- Staff development
- Creating a culture for continuous learning
- Coaching and career planning
Course begins: Wednesday, November 12 Live Zoom discussions: Tuesdays, 3:00 PM - 4:00 PM ET beginning November 18 through December 23.
Registration closes November 17 at 5 PM ET.