O-zone Injury on Vegetables
Crystal Stewart-Courtens, Extension Vegetable Specialist
Eastern New York Commercial Horticulture
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.
Common ozone symptoms are small, irregular, shaped spots that range in color from dark brown to black (stipple like) or light tan to white (fleck like). These spots are found only on the upper surface of the leaf. Very young and old leaves are less susceptible to ozone while newly mature leaves are the most susceptible. With severe damage, symptoms may extend to the lower leaf surface.
Insect feeding (red spider mite and some leafhoppers) produce flecks on the upper surface of leaves, much like ozone injury. Flecks from insect feeding are usually spread uniformly over the leaf surface while ozone flecks are concentrated in specific areas, usually most pronounced at the leaf tip and along the margins.
The most sensitive crops include: Bean, Broccoli, Muskmelon, Onion, Potato, Radish, Spinach, Sweet Corn, Tomato
Intermediate crops include: Carrot, Endive, Parsley, Parsnip, Turnip
Tolerant crops include: Beet, Cucumber, Lettuce
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March 6, 2024 : Weed Management for Berries in NY
Join Cornell scientists, Dr. Bryan Brown, Dr. Lynn Sosnoskie, Rutgers University's Dr. Thierry Besançon, CCE Harvest NY's Anya Osatuke, and CCE ENYCHP's Laura McDermott to hear updates on the latest research concerning weed management in berries.
Northeast Extension Fruit Consortium Winter Webinar Series
March 6, 2024
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: Northeast Extension Fruit Consortium Winter Webinar Series
How Profitable will My New Orchard Investment Be? Evaluating Capital Investment Decisions in a Farm Business
February 29, 2024 : Week 1 of the course (February 23-Feb 29)
In week 1 we cover:
- How and why to use a structured process to make investment decisions.
- Identifying the problem to be addressed, generating possible solutions and identifying what information you need to acquire.
- Gathering data and using farm financial statements and farm financial ratios to help make decisions.
In this zoom session we will go over what you learned in the on-line class.
March 7, 2024 : Week 2 (March 1 - March 7)
In week 2 you will: