Squash - Summer

Relevant Events
Assess and Prevent Food Safety Risks in Leafy Greens Production
March 18, 2021
2021 NYS Dry Bean Meeting

March 19, 2021
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: 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: Downy Mildew

Downy mildew is a potentially devastating disease to cucurbits. It usually affects cucumbers and cantaloupes first; later in the season it can be found on summer squash and zucchini. During some seasons, downy mildew can spread to winter squash and watermelons. Growers need to be monitoring their fields. This short video shows the different stages of the disease and possible outcomes if it is not controlled.
2017 Cucurbit Downy Mildew Management Guidelines

From Margaret McGrath, Cornell
Producing a high-quality cucurbit crop necessitates effectively managing downy mildew. This foliar disease is common in the northeast because the pathogen produces a large quantity of asexual spores that are easily dispersed long distances by wind, which enables it to spread widely. There has been no evidence that the pathogen is surviving between growing seasons where winter temperatures kill cucurbit crops (outdoors above the 30th latitude); however, recently both mating types have been found, albeit typically on different cucurbit crop types, thus there is the potential for the pathogen to produce oospores (sexual spores) that could enable the pathogen to survive in northern areas of the USA. The downy mildew forecasting program has documented based on downy mildew occurrence movement of the pathogen throughout the eastern USA each year via its wind-dispersed asexual spores. The pathogen does not affect fruit directly; however, affected leaves die prematurely which results in fewer fruit and/or fruit of low quality (poor flavor, sunscald, poor storability).
The most important component of an effective management program for downy mildew is an effective, properly-timed fungicide program. And the key to that is applying mobile fungicides targeted to the pathogen starting when there is a risk of the pathogen being present. Mobile (or translaminar) fungicides are needed for control on the underside of leaves. Each year there often are changes to the fungicides recommended as the pathogen develops resistance or new products are registered. Because these fungicides have targeted activity, additional fungicides must be added to the program when there is a need to manage other diseases such as powdery mildew. Most targeted fungicides effective for downy mildew are also effective for Phytophthora blight.
Guideline Tools: Weed Management in Cucurbits, 2015
Darcy Telenko, Extension Vegetable Specialist
Cornell Vegetable Program

This reference sheet lists the herbicides that are labeled for cucurbits 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.
Copper Fungicides for Organic Disease Management in Vegetables

There are several different copper fungicides approved for use in organically-produced crops. Copper fungicides are important tools for managing diseases that cannot be effectively managed with cultural practices alone.
Responding to Hailstorms
Crystal Stewart-Courtens, Extension Vegetable Specialist
Eastern New York Commercial Horticulture

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.
Buckwheat Strips as an Attractant of Pollinators for Vine Crops
Robert Hadad, Extension Vegetable Specialist
Cornell Vegetable Program

Download a report on using buckwheat strips to attract native pollinators to vine crops (2008). This project was funded by the Organic Farming Research Federation.


Upcoming Events
Managing Soil Nitrogen in Winter High Tunnels
March 5, 2021
To meet the year-round demand for locally produced food, vegetable farmers have embraced protected agriculture to extend their growing season, improve yields, and enhance crop quality. However, a statewide survey found that after several growing seasons, farmers struggle to maintain productivity due to challenges in long term soil health and fertility management. Cornell Cooperative Extension is exploring practices that high tunnel growers can adopt to better manage soil fertility and improve soil health.
Grab your lunch and join us for a virtual conversation on Friday, March 5, 2021 from 12:00pm - 1:30pm to hear our project updates and research results.
Assess and Prevent Food Safety Risks in Leafy Greens Production
March 18, 2021
This training will provide an overview of possible sources of contamination related to soil amendments, wildlife, water, post-harvest handling, transportation and more. This training will emphasize specific risks that leafy greens growers may experience, identify tangible corrective actions that can be taken, and provide participants the opportunity to work through example scenarios as a group.
2021 NYS Dry Bean Meeting

March 19, 2021
Join the us for the annual Dry Bean Meeting! There will be presentations covering the latest research in NY dry beans. Topic areas include market updates, white mold management, Western bean cutworm and soybean cyst nematode management, herbicide resistance management, dry bean variety testing, and incorporating NY dry beans into schools. This meeting is sponsored by Genesee Valley Bean Company, and Bayer CropScience.