Eastern New York Commercial Horticulture Enrollment

Program Areas

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

Enrollment Benefits

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

Enrollee Login

Password:

Log In To Access:

  • Helpful Diagnostic Tool:
      What's wrong with my crop?

Not an Enrollee? Enroll Now!

Online Enrollment Form

OMRI and Conventional Options for Flea Beetle Suppression

Ethan Grundberg, Vegetable Specialist
Eastern New York Commercial Horticulture

May 24, 2018

Crucifer flea beetles, Phyllotreta cruciferae Goeze, emerged abruptly with some warm weather in mid-May and have been causing damage on susceptible brassica crops. Most growers are all-too-familiar with this pest and have a few strategies to limit damage from flea beetles already in their toolbox. However, this generation of flea beetles will continue to be active through around mid-June, so it's worth revisiting a few of the other options available if your preferred method falls short this season.

 Prevention: Young transplants and recently emerged direct seeded crops at the cotyledon stage are the most susceptible to damage. Rotating spring brassicas as far away from fields that had cole crops the previous fall can help reduce the pressure. Keeping field edges clean of mustard weeds can also reduce flea beetle populations that then migrate into production areas. On a smaller scale, insect netting or floating row cover can also be used, but must be secured at soil level before flea beetle emergence to prevent them from getting underneath and having a feast. Mustard cover crops, as shown in the image, can also be flea beetle magnets and should be carefully managed as far away from brassica cash crop fields as possible. Once flea beetles have reached a threshold of an average of 1 beetle per plant or 10% average leaf damage, it's time to consider chemical control options.

 Conventional Options: There are a number of pyrethroid (IRAC Group 3A) insecticides labeled for flea beetles that provide quick knock downs of populations. A few of the labeled pyrethroids labeled for use in New York are Baythroid XL (beta-cyfluthrin), Brigade 2EC (bifenthrin), Warrior II with Zeon Technology (lambda-cyhalothrin), and Mustang MAXX (zeta-cypermethrin). Given that this generation of flea beetles will still be active for a few weeks, growers may want to consider pre-mix products of pyrethroids and neo-nicotinoids (IRAC Group 4A) that will provide longer residual control. Two common options are Leverage 2.7 (imidacloprid + cyfluthrir) and Endigo ZC (lambda-cyhalothrin + thiamethoxam). One other pre-mix product with longer residual than a straight pyrethroid and with less potential to hurt pollinators than the neo-nic mixes is Voliam Xpress. Voliam Xpress is a mix of lambda-cyhoalothrin and the IRAC Group 28 diamide insecticide chlorantraniliprole (same active ingredient in Exirel). The neo-nicotinoid Admire Pro (imidacloprid) is labeled as a foliar spray for flea beetles. Please note, soil applications of Admire Pro on brassicas are only labeled for aphid, leafhopper, thrip, and white fly control, NOT for flea beetles. In a 2015 field trial conducted in Virginia, Brigade provided the best level of flea beetle suppression when compared to Admire Pro and Exirel.

Organic Options: Like with the conventional options, there are a number of OMRI options labeled for flea beetle suppression. However, in field trials both at UMass and New York State IPM, few provided a statistically significant reduction in flea beetle pressure over untreated controls. Spinosad products, like Entrust, have generally shown the highest efficacy and can be mixed with OMRI-approved spreader-stickers to improve performance. A trial in Maryland from 2011 showed good performance from Azera, a pre-mix of azadirachtin and pyrethrins (IRAC Group 3A), especially when mixed with Surround WP (kaolin clay). Finally, a 2013 trial in New York found that both Grandevo (Chromobacterium subtsugae strain PRAA4-1T and spent fermentation media) and Venerate (Heat-killed Burkholderia spp. strain A396 cells and spent fermentation media) reduced flea beetle damage on cabbage under low pressure.

 This article was printed in the May 24th, 2018 issue of ENYCHP Veg News. To view the full newsletter, click here.

Crucifer BeetleTypcial shotgun type small holes caused by crucifer flea beetle
feeding on white mustard cover crop


more crops
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

October Last Monday Grant Webinar for Fruit and Vegetable Growers

October 28, 2019
4:00 pm

Are you curious about what grants are available to help your farm business?

To help disseminate information on grants on a consistent basis, ENYCH is offering a "current grants" webinar on the last Monday of every month at 4:00pm

Each month's webinar focuses on 1 grant.  The October webinar topic is TBD but might feature Ag Labor Housing Grants.
view details

Produce Safety Alliance FSMA Grower Training Course

October 30, 2019
8am - 5pm
Canajoharie, NY

A grower training course developed by the Produce Safety Alliance (PSA) that meets the regulatory requirements of the Food Safety Modernization Act (FSMA) Produce Safety Rule.  At least one person per farm producing more than $25,000 worth of fruits and vegetables must attend this course once.  Participants will receive a certificate of course completion by the Association of Food and Drug Officials. 

view details

Tarping for Reduced Tillage Workshop

November 2 - November 19, 2019

Are you a vegetable farmer already using tarps? Or are you wondering if and how tarps could work best on your farm?

The Cornell Small Farms Program is excited to announce a series of workshops on tarping for reduced tillage in small-scale vegetable systems, to be held in Maine and New York this fall. The Reduced Tillage (RT) project of the Cornell Small Farms Program supports farmers in adopting scale-appropriate RT practices that can lead to healthy, productive soils and greater profitability. Through the evaluation of novel tools and methods using systems-based field research and on-farm trials, the project helps farmers learn about the approaches that can work for their farm. This work is accomplished in collaboration with the University of Maine, and with support from Northeast SARE.

view details

Announcements

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

Climate Change Adaptations

September 30, 2019
In this episode regional vegetable specialist Elisabeth Hodgdon interviews University of Vermont PHD student Alissa White about a series of interviews with growers in the north east concerning climate change adaptations.

Listeners can access Alissa White’s climate change adaptation survey report and additional information on the project by clicking on the following link:

https://adaptationsurvey.wordpress.com/results/
Alissa’s project was sponsored by a Northeast SARE Graduate Student Grant (GNE17-163).

listen now

view all podcasts
NEWSLETTERS  |  CURRENT PROJECTS  |  IMPACT IN NY  |  SPONSORSHIP  |  RESOURCES  |  SITE MAP