Be on the Lookout for Cucumber Beetles!
Crystal Stewart-Courtens, Extension Vegetable Specialist
Eastern New York Commercial Horticulture
Cucumber beetles will soon be active in the region, so make sure to scout and appropriately protect cucurbits. Young transplants and direct seeded cucurbits are a priority to protect because cucumber beetle feeding early on can vector bacterial wilt, a disease which can kill plants during hot, dry weather and/or heavy fruit set. Many conventional growers choose to treat either seed or transplants with a systemic insecticide which will protect them for a few weeks, after which point additional sprays will be needed to control new adults which fly in. Organic growers can either use row cover or a coating of Surround (kaolin clay) to protect transplants, followed by insecticide sprays later in the season. Both organic and conventional growers should time any insecticide applications to avoid harming the bees. This generally means spraying in the late afternoon/evening.
If scouting for cucumber beetles, check the flowers of older cucurbits first, as this is a very favored location. However, all stages of cucurbit will be fed on.
This article was printed in the May 24th, 2018 issue of ENYCHP Veg News. To view the full newsletter, click here.
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Upcoming Events
Ag Labor Road Show IX
December 1, 2025 : Save the Date! - Ag Labor Roadshow Webinar 1
In addition to the in-person Ag Labor Roadshow program in our region on December 9, two webinars are scheduled for December 1 and December 22. Each webinar will focus on different program content that is different from the in-person sessions. These webinars are an added benefit to program registration.
December 9, 2025 : Save the Date - Ag Labor Road Show In-Person Event (Greenwich, NY)
Greenwich, NY
The Roadshow delivers essential updates on labor law, regulations, and workforce best practices—tailored for farm owners, managers, and ag service providers. Sessions also focus on practical strategies to boost communication, strengthen retention, and build a positive workplace culture.
The in-person session for Eastern NY is December 9 - Elks Lodge, Greenwich, NY - full day in person session
Additional in-person sessions are:
December 10 - Hilton Garden Inn, Watertown, NY, December 17 - Cornell AgriTech, Geneva, NY, December 18 - Genesee Community College, Batavia, NY
December 22, 2025 : Save the Date! - Ag Labor Roadshow Webinar 2
In addition to the in-person Ag Labor Roadshow program in our region on December 9, two webinars are scheduled for December 1 and December 22. Each webinar will focus on different program content that is different from the in-person sessions. These webinars are an added benefit to program registration.
How to Obtain a Pesticide Applicator License
December 17, 2025
Thinking about becoming a certified pesticide applicator in New York, but aren't sure where to start? Join DEC representative Kenneth Klubek for a discussion on who needs to become a certified pesticide applicator, certification types, examination procedures, and recertification. Participants will have ample opportunity to ask questions during the program.
2026 Winter Cut Flower Webinar Series
January 6, 2026 : Session 1: Cut Flower Cost Calculator Updates and Woody Cuts
Session 1: Cut Flower Cost Calculator Updates and Woody Cuts
January 13, 2026 : Session 2: Perennials and Industry Trends
Session 2: Perennials and Industry Trends
January 20, 2026 : Session 3: Anaerobic Soil Disinfestation and Biochar
Session 3: Anaerobic Soil Disinfestation and Biochar
January 27, 2026 : Session 4: Beneficial Insects and Propagation Techniques
Session 4: Beneficial Insects and Propagation Techniques
February 3, 2026 : Session 5: Fungal and Insect Pests and Market Trends
Session 5: Fungal and Insect Pests and Market Trends