Field Crop Update June 30, 2022

Erik Smith, Area Field Crop Specialist
Central New York Dairy and Field Crops

June 30, 2022

Click to see the latest Oneida County Scouting Report, Northwest NY Crop Alert, Southwest NY Field Crop Chronicle, Capital Area Ag Report, and New York State IPM Weekly Field Crops Pest Report (

 1. Field Observations

Insect pest pressure is still relatively low in all crops, but keep an eye on soybean aphid in untreated beans.
Economic damage threshold is 250 aphids/leaf (average of 20-30 plants) and increasing between early flower and early pod fill (R1-R5).

Soybean aphids in various stages etc.
Number of Soybean Aphids per leaflet

(Images adapted from R-2-2010-10M,published by the NorthCentral IPM Center,Univ Wisc-Madison)

As we reach the reproductive stages in soybean, be sure you're still on-label for your post-emergence herbicide applications. Here's a handy table from UNL: but as always, check the label of your product.

On this subject, here is a June 30 Dicamba cut-off date reminder from Mike Hunter of the CCE-North Country Ag Team:

"June 30, 2022 marks the official cutoff date for the over the top use of XtendiMax, Engenia and Tavium on Xtend or XtendFlex traited soybean in New York. Now the question that will be asked by growers is "I've planted Xtend soybeans, now what are my options?".

For soybean growers that have resistant tall waterhemp and palmer amaranth in soybeans there are other effective herbicide options available. The postemergence control of resistant tall waterhemp and palmer amaranth in all soybeans, including conventional, can be achieved by applying Reflex or Flexstar (fomesafen) or Prefix (s-metolachlor + fomesafen) or Warrant Ultra (acetochlor + fomesafen) before the weeds reach 3 inches tall. If necessary, a late rescue treatment of Cobra (lactofen) can be applied.

Unfortunately, for soybean growers that have multiple resistant marestail (Groups 2 and 9) in Xtend soybeans there no other effective postemergence herbicides to control this problematic weed without using one of dicamba herbicides. Postemergence applications of Reflex, Flexstar and Cobra, will not control marestail (see fig. 1 &2).

For growers that planted XtendFlex soybean, Liberty (glufosinate) herbicide will provide an additional option for the postemergence control of marestail under 6 inches tall. Once marestail is over 6 inches tall it becomes increasingly difficult to control. For best results, apply 32 to 43 ounces of Liberty plus 3 pounds spray grade ammonium sulfate per acre using 20 gallons water as a spray carrier to ensure adequate coverage. Hot, sunny, humid days provide ideal conditions for the application of Liberty herbicide. Consider making applications between dawn and two hours before sunset for improved control of some tougher to control weeds such as marestail. Liberty herbicide can be applied up to R1 or beginning bloom stage in soybeans.

Always read and follow label directions prior to using any herbicide. If you have any additional questions about late season soybean weed control, contact your local Cornell Cooperative Extension office."

Marestail sprayed with reflex
Marestail sprayed with Cobra

2. Growing Degree Days as of June 28th (See: Climate Smart Farming Growing Degree Day Calculator)

Growing degree days (GDD) are calculated by taking the average daily temperature and subtracting the base temperature for development of a given organism ((High + Low)/2 - base temp = GDD). For corn silage, we are using base 50/86, as corn development starts at 50 degrees F and ceases above 86. Check your location and planting date:

The earliest planting dates are seeing higher GDD than the 15-yr avg, but most planting dates in the latter half of May (and later) are seeing GDD accumulations between the 30- and 15-yr avgs (cooler than recent years). The rest of this week may turn that around and give us some warmth, but unfortunately little to no rain….

Table of Growing Degree Days
Table of growing degree days

3. Pest and disease monitoring
A. Black cutworm (BCW), western bean cutworm (WBC), true armyworm (TAW) in corn.
This week, trap numbers remained low.
Next week will be the last week of monitoring for black cutworm, since the threat has largely passed. Soon, we will monitor western bean cutworm and fall armyworm:

table of traps checked and black cutworm maximum weekly catch

B. Potato leafhopper in alfalfa. *No action needed within a week of harvest

potato leafhopper in alfalfa and action thresholds

C. Fusarium head blight in grains. If your winter grains are flowering, now is the time to decide whether to protect crops from fusarium head blight. According to the Fusarium Risk Tool, the risk in our region is currently low (yellow) to moderate (orange) except for eastern Fulton County and east of Schoharie in the Gallupville/Berne area, as well as Herkimer county north of the Mohawk where the risk is high (red) if your crops are currently flowering:

fusarium head blight in grains map

Field Crop Update June 30, 2022 (pdf; 1150KB)









Upcoming Events

Parasite Fecal Analysis Roadshow II

June 10, 2024 : SUNY Morrisville
Morrisville, NY

June 24, 2024 : Washington County Fairgrounds Office
Greenwich, NY

July 1, 2024 : Cobleskill
Cobleskill, NY

View Parasite Fecal Analysis Roadshow II Details

Artificial Insemination Training Course~Stillwater

June 25 - June 26, 2024 : Artificial Insemination Training Course~Stillwater
Stillwater, NY

Two-Day Course.  English / Spanish program. Lunch included.

View Artificial Insemination Training Course~Stillwater Details

Artificial Insemination Training Course~Earlville

July 15 - July 16, 2024 : Artificial Insemination Training Course~Earlville
Earlville, NY

Two-Day Course.  English / Spanish program. Lunch included.

View Artificial Insemination Training Course~Earlville Details


Cash Rent and Custom Harvest Survey

To date, there is limited information available about rental rates and fees for crop harvesting.  Farms can use this valuable information for their farm business planning to help improve decision making and profitability. 

The data that is collected, and the subsequent reports/findings/resources will be helpful for all of us to answer that call of "What's the average rental rate in my area?" and "How much do people charge to combine oats?"

Take the survey here.

Farmers Can Join MeatSuite For Free! is a free resource provided by Cornell University where NY meat farmers can create a farm profile and list their bulk (wholes, halves, quarters) and bundled (i.e. Grilling Bundle) meat products.

Why should farmers join?

1. It's free and easy!
2. Connect with more local customers. In the past year the farm directory had 8,300 visits from New York consumers. Farm profiles get as many as 25 views per month from potential local customers. We also spotlight MeatSuite farms on social media and bring attention and purchases to farms through highlights and giveaways.

How do I join?

Farmers can visit to create a free farm profile. You must list at least one product for your farm's profile to go live. You'll also have access to Cornell's free Meat Price Calculator, a helpful tool for pricing your meat to make a profit.

While you're on MeatSuite, check out the "Creating Consumer-Friendly Bulk Meats" publication on the log-in page. It has tips on how to create bulk meat products that are easier for first-time buyers to say "yes" to.

If you have any questions as you create your farm profile or products, we're here to help! Please email Matt LeRoux at

Sign Up for Our Weekly E-Newsletter

We send out a bi-weekly e-newsletter that has announcements, upcoming programs, and opportunities for you!  Registration is quick, easy, and free.  Click here to sign up today!

Spotted Lanternfly

Lycorma delicatula, or Spotted Lanternfly (SLF), is an invasive plant hopper from Asia and is an agricultural pest. In the United States, it was first found in Pennsylvania in 2014. Spotted Lanternfly has been found in New York State on Staten Island, all New York City boroughs, Long Island, Port Jervis, Sloatsburg, Orangeburg, Ithaca, Binghamton, Middletown, Newburgh, Highland, and the Buffalo area. SLF threatens the agriculture and forestry industries, and is also a nuisance pest. The nymphs and adults feed on over 70 different plants, but is especially detrimental to grapes, a black walnut, hops, maple trees and apples. New York State Ag and Markets supported CCE efforts to help bring awareness to communities and we developed this Public Service Announcement and would appreciate you sharing it with your member lists. 

CCE Livestock Program Work Team

See the Livestock Program Work Team website for news, upcoming programs, and NYS Slaughterhouse Map.