Eastern New York Commercial Horticulture Enrollment

Program Areas

  • Food Safety
  • Variety Evaluation
  • Market Development
  • Pest Management
  • Cultural Practices

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  • Telephone / Email Consultations
  • Newsletter
  • Direct Mailings
  • Educational Meetings & Conferences
  • In-Field Educational Opportunities
  • On-Farm Research Trials

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Lookout for Leek Moth

Amy Ivy, Vegetable Specialist
Eastern New York Commercial Horticulture

May 17, 2018

early leek mothEarly leek moth damage to garlic. Unfold the youngest
 leaves near the emerging scape to find the damage
and young caterpillars
map

Leek moth is a pest of all allium crops: onions, garlic, leeks, shallots and chives. It is widespread through the southern parts of Ontario and Quebec in Canada, northern NY and in recent years, most of Vermont (see map).

Leek moth overwinters as an adult and begins flying in mid-April. This year the first adults were caught in Essex on April 21, in spite of very cold weather the week prior. The adults seek out alliums on which to lay eggs; emerging garlic and onion seedlings are known to be popular sites. Overwintering onions and emerging chives could be likely hosts for these first egg laying efforts as well. Larvae should be hatching in a couple of weeks.

Be cautious when buying and selling onion transplants between growers in the infested areas. We have seen leek moth appear in new locations when infested plants were brought in from other farms. It is not known in the southern US so seedlings from there should not be a concern for leek moth but caution is advised when buying any northern grown seedlings.

Leek moth larvae can do considerable damage to garlic scapes and this is a good first place to look for them when scouting. Look inside folded leaves near the developing scapes as well. There are 2ee labels for Entrust (organic), Radiant, Lannate and Warrior II w/Zeon. Controlling this first emergence of larvae can help protect onions from the second generation of leek moth which is more difficult to control since the larvae are more protected because they feed inside the hollow onion leaves. 

leek2Damage to garlic scape as it emerges



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Apples

Apples

Apricots

Apricots

Asparagus

Asparagus

Beets

Beets

Blueberries

Blueberries

Broccoli

Broccoli

Brussels Sprouts

Brussels Sprouts

Cabbage

Cabbage

Carrots

Carrots

Cauliflower

Cauliflower

Cherries

Cherries

Cucumbers

Cucumbers

Dry Beans

Dry Beans

Eggplant

Eggplant

Ethnic Vegetables

Ethnic Vegetables

Garlic

Garlic

Grapes

Grapes

Horseradish

Horseradish

Kohlrabi

Kohlrabi

Leeks

Leeks

Lettuce / Leafy Greens

Lettuce / Leafy Greens

Melons

Melons

Nectarines

Nectarines

Onions

Onions

Parsnips

Parsnips

Peaches

Peaches

Pears

Pears

Peas

Peas

Peppers

Peppers

Plums

Plums

Potatoes

Potatoes

Pumpkins / Gourds

Pumpkins / Gourds

Radishes

Radishes

Raspberries / Blackberries

Raspberries / Blackberries

Rhubarb

Rhubarb

Rutabaga

Rutabaga

Snap Beans

Snap Beans

Squash - Summer

Squash - Summer

Squash- Winter

Squash- Winter

Strawberries

Strawberries

Sweet Corn

Sweet Corn

Sweet Potatoes

Sweet Potatoes

Tomatoes

Tomatoes

Turnips

Turnips

more crops

Upcoming Events

Berry Production Twilight Meeting

Event Offers DEC Credits

July 8, 2021
Peru, NY

Rulf's Orchard, 531 Bear Swamp Road, Peru, NY 

Many berry topics will be discussed including growing Juneberries (Amelanchier, not strawberries), using entomopathogenic nematodes to control strawberry root pests, low tunnel production in June bearing strawberries, SWD monitoring and management. 2.5 DEC pesticide recertification credits available in categories 1A, 10, 22, and 23. Contact Elisabeth Hodgdon (eh528@cornell.edu or 518-650-5323) or Laura McDermott (lgm4@cornell.edu or 518-746-2562) with questions.

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Announcements

U-Pick Farm Practices During Covid-19 Pandemic

U-Pick is a critical direct marketing approach for many of our farms and provides
customers with a unique connection to fresh produce grown close to home. In light
of what we understand about the spread of COVID-19, new management practices
will be needed to protect your farm team and your customers. This document
provides recommended practices and communication strategies for U-Pick
operations for the 2020 season.

https://rvpadmin.cce.cornell.edu/uploads/doc_864.pdf

Growers-are you running low on fall pumpkins, etc?

The Produce Auctions located around the state may have what you need.  Check out all of the opportunities here: https://harvestny.cce.cornell.edu/submission.php?id=4

Resources from CCE ENYCHP!

We are developing new ways to connect with the CCE ENYCHP team this year! We have a Youtube page located at this link. Check out videos on Table Grape Production, Pest Updates and the 20 Minute Ag Manager - in 4 Minutes series

We have a Facebook Page here as well as an Instagram page. We keep these places updated with current projects, events, and other interesting articles and deadlines.

There are also text alerts available. Fruit and vegetable farmers in 17 Eastern NY counties can now receive real time alerts on high risk disease and pest outbreaks texted directly to their cell phone. The Eastern NY Commercial Horticulture program, which is supported by local Cornell Cooperative Extension associations, will now offer text alerts to those that enroll in our program in 2019. 

The text alerts will be reserved for important crop alerts that could impact management decisions immediately. For instance, if there were an outbreak of Late Blight in the area, this would be transmitted to vegetable growers.

Farmers can choose the crop for which they wish to receive updates. Additionally they can request that Ag Business Alerts be sent to them. These alerts might include due dates for crop insurance deadlines, market opportunities etc.

If you have questions, please contact enychp@cornell.edu


Podcasts

“Understanding Fungicide Resistance and How to Avoid It” with Dr. Margaret McGrath

June 16, 2021
ENYCHP Veg News Farm and Field Updates with Teresa Rusinek
“Understanding Fungicide Resistance and How to Avoid It” with Dr. Margaret McGrath of Cornell University
In this this podcast ENYCHP vegetable specialist Teresa Rusinek interviews Dr. Margaret McGrath, of Cornell University School of Integrative Plant Science, to discuss the development of fungicide resistance in plant pathogens and steps growers can take to avoid it.
Resources:
https://www.vegetables.cornell.edu/pest-management/disease-factsheets/general-guidelines-for-managing-fungicide-resistance/
Vegetable Pathology – Long Island Horticultural Research & Extension Center (cornell.edu)
The Cucurbit Downy Mildew Forecast Homepage
https://cdm.ipmpipe.org/

listen now

read transcript

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