Leeks
There are roughly 30 acres of leeks grown in New York annually. They are an edible member of the Liliaceae or lily family. They are tender and have a mild onion flavor with a slightly sweet edge. Leeks may be planted in late February to March for harvest in early- to mid-summer. Alternatively, they may be planted in July for harvest in late fall/early winter.Leek is an expensive crop to grow, because it is labor intensive. Hand labor is required for all stages of production including: transplanting, weeding, harvesting, washing and packing.
Information on cultural practices and pests of leeks can be found in the Leek Pest Management Strategic Plan.
Onion Thrips Management Recommendations for 2018
Ethan Grundberg, Vegetable Specialist
Eastern New York Commercial Horticulture
Onion thrips populations have exceeded action thresholds in a few hot spots in Orange County. Review Dr. Brian Nault's insecticide recommendations for onion thrips management that incorporate newly registered products in New York State.
Allium Leafminer Active in Southern Pennsylvania
Teresa Rusinek, Vegetable Specialist
Eastern New York Commercial Horticulture
A new invasive insect pest in the Northeast known as the Allium leafminer (ALM), Phytomyza gymnostoma, damages crops in the Allium genus (e.g., onion, garlic, leek, scallions, shallots, and chives) and is considered a major economic threat to Allium growers. Originally from Europe, ALM was first detected in Lancaster County, Pennsylvania in December of 2015 and in New Jersey and New York in 2016. As of fall 2017, ALM activity has been confirmed throughout eastern Pennsylvania, New Jersey, Delaware, southeastern New York as well as Thompkins and Suffolk counties.
Onion and Seed Corn Maggot Concerns in a Cold, Wet Spring
Crystal Stewart-Courtens, Extension Vegetable Specialist
Eastern New York Commercial Horticulture
Last year we saw a lot of problems with root feeding damage from maggots early in the season, which has growers on edge about pest pressure this year. Seed corn maggots can damage a variety of crops, and in previous years have been observed on everything from sunflower shoots in the greenhouse to pea seedlings and onion transplants in the field. Onion maggots are more particular, and will only feed on allium hosts.
2018 Eastern New York Fruit & Vegetable Conference Vegetable Presentations
Presentations from the 2018 ENYCHP Eastern New York Fruit & Vegetable Conference held February 20th and 21st for the vegetable sections.
Growing Alliums for Storage & Long Term Sales Resource Guide
Leek Moth Control and Information
Christy Hoepting, Extension Vegetable Specialist
Cornell Vegetable Program
Leek Moth was detected in four home gardens in Plattsburg, NY in 2009. It was first detected in Ontario, Canada in 1997 where it has become problematic especially to small-scale, organic growers in eastern Ontario and to commercial producers in western Quebec, who have limited insecticides available to them.
Leek Moth continues its spread to more farms and gardens across the U.S., a new comprehensive website is available to aid in the identification and management of this pest. This Cornell website features maps of the distribution of leek moth, protocols on insect monitoring and identification, best management practices for farms and home gardens, a photo gallery of damage symptoms and a comprehensive resource section.
Visit the Leek Moth website.
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