Commercial Ag Updates + Farm Food Safety

Rutgers Cooperative Extension Ag Agents provide updates on what they see in the field, upcoming events, and other important news that affects your operation, such as developments in on-farm Food Safety. Subscribe if you wish to be notified about workshops, meetings, and upcoming commercial ag events.
 
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August 28, 2025 , and

Fruit IPM Report August 26 2025

Peach:

Oriental Fruit Moth (OFM): Overall, OFM trap captures have been low and treatments should be over for the third generation flight statewide. Additional treatments should be made if trap captures are over 6 moths per trap.

Scale Insects: Scale crawler emergence is past peak and declining. White Peach scale has a third generation in September and San Jose scale may have a third generation in October. Options at this point include Group 4A products labelled for scale including Assail, and the bioinsecticide Venerate. Venerate has a 0-day PHI, making it useful for blocks near or at harvest (Figure 1).

Figure 1. San Jose scale on apple.

Lesser Peachtree Borer (LPTB) and Peachtree Borer (PTB): Trap counts for borers have been high at several farms this season throughout the state (Figure 2). Where mating disruption is not being used, trunk sprays using pyrethroids can be applied early to mid-September followed by an additional application in mid to late September. Since this would be a labor intensive practice it would be most efficient to give priority to younger and most productive orchards. See the NJ Tree Fruit Production for effective materials and rates.

Figure 2. Lesser peachtree borer adult.

Apples and Pears:

Summer Diseases: Disease control is over for Early season apple varieties. Mid to late season varieties will need further applications on a two-week schedule until mid-September for sooty blotch and fly speck. See the NJ Tree Fruit Production guide for effective materials.

Brown Marmorated Stink Bugs (BMSB): Brown Marmorated Stink bug and native stinkbug populations have been low this season, although we have seen an increase in trap captures at some farms. If stinkbugs are a concern for your orchard, see the NJ Tree Fruit Production guide for effective materials.

Codling Moth (CM): Most orchards have very low CM pressure. Additional treatments should be made if trap captures are over 5 moths/trap.

Phenology Table: Based on annual observations made in Gloucester County.

Pest Event or Growth Stage Approximate Date 2025 Observed Date
 Bud Swell (Redhaven/PF-17)  March 23 +/- 15 Days March 30
1/4″ Green Tip Red Delicious March 31 +/- 13 Days March 30
Pink Peach (Redhaven/PF-17) April 4 +/- 15 Days April 1
Tight Cluster Red Delicious April 9 +/- 13 Days April 5
Full Bloom Peach (Redhaven/PF-17) April 9 +/- 14 Days April 10
Pink Apple (Red Delicious) April 14 +/- 12 Days April 16
Full Bloom Apple (Red Delicious) April 22 +/- 11 Days April 25
Petal Fall (Redhaven) April 22 +/- 10 Days April 19
Petal Fall (Red Delicious) April 27 +/- 13 Days May 2
Shuck Split (Redhaven) April 30 +/- 11 Days April 26
Pit Hardening June 15 +/- 9 Days June 15

Tree Fruit Trap Captures – Southern Counties

Week Ending STLM TABM-A CM BMSB OFM-A DWB OFM-P TABM-P LPTB PTB
4/5/2025 0 0 0 0 0 0 0 0 0 0
4/12/2025 0 0 0 0 6 0 0 0 0 0
4/21/2025 0 0 0 0 36 0 1 0 0 0
4/27/2025 25 0 0 0 24 0 5 0 1 0
5/2/2025 517 0 4 0 12 0 6 0 13 0
5/9/2025 159 4 10 0 3 16 5 4 46 0
5/16/2025 91 11 6 0 1 36 2 14 69 0
5/23/2025 299 21 3 0 1 23 1 26 23 0
5/30/2025 399 14 2 0 0 41 1 11 10 3
6/6/2025 733 13 1 0 0 36 2 12 29 1
6/13/2025 684 19 2 1 0 81 2 17 22 8
6/20/2025 724 24 2 0.5 1 60 1 23 19 12
6/27/2025 932 5 1 0.8 1 40 0 5 24 14
7/4/2025 643 0 0 0.75 1 17 0 0 6 16
7/11/2025 194 0 0 0.5 0 18 8 0 24 15
7/18/2025 190 0 0 1 0 16 2 1 5 12
7/25/2025 222 2 1 1.6 0 16 1 2 12 21
8/1/2025 450 1 0 2 1 24 2 1 21 18
8/8/2025 523 2 1 2 0 35 5 2 30 19
8/15/2025 595 1 0 2 0 37 1 2 32 15
8/22/2025 125 5 0 3.75 1 49 4 4 40 14

Tree Fruit Trap Captures – Northern Counties

Week Ending STLM TABM-A CM BMSB OFM-A DWB OFM-P TABM-P LPTB PTB AMBROSIA BEETLE
4/5/2025 387 0 0 0 0 0 0 0 0 0 0
4/21/2025 435 0 0 0 0 0 1.3 0 0 0 0
4/27/2025 26 0 0 0 0 0 25 0 0 0 72
5/2/2025 86 0 0.33 0 72.5 0 47.2 0 0 0 136
5/9/2025 56 0 5.3 0 58.8 0 22.9 0 0 0 145
5/16/2025 13.75 2.6 7.3 0 4 0 5 0 0 0 50.5
5/23/2025 4.8 10.3 10.5 0 0.6 31.25 4.2 0 14.6 1 22.2
5/30/2025 2.2 4.8 1.8 0 0 12.4 9.6 0 9.6 1.9 22.1
6/6/2025 3 4.83 2.8 0.25 0 20 4.1 0 21.2 1.8 40.3
6/13/2025 65 20 11.4 0.6 0 12.3 4 0 10.5 1.5 59.2
6/20/2025 26 26 8 0.75 1 13 4.5 0 11 0.75 52
6/27/2025 145 19 6 1.3 6 35 5.4 0 16 1.6 38
7/4/2025 212 6 3 0.6 12.5 40 2 0 8.4 1.1 27
7/11/2025 125 2.5 0.5 0.14 5 41 3 0 20 4.5 48
7/18/2025 64 0.5 0.4 0.16 2 42 2 0 8.4 1.9 64
7/25/2025 110.5 0.4 2.3 0.24 7.5 44 4 0 6.8 12.2 69
8/1/2025 132 0.5 2.8 0.4 5.7 42.5 2.9 0 8 6.2 71.5
8/8/2025 157 1.9 0.6 0.41 6 27.8 8.3 0 10.8 5.5 78
8/15/2025 36.8 2 2.6 0.3 2.9 25.8 2 0 11.6 4.8 24
8/22/2025 25 6 1.4 0.05 1.6 40.4 7 0 18 4.8 67.6

Grape

Figure 3. Sour rot of grapes.

Disease management continues to focus on downy and powdery mildew and also bunch rots (Figure 3).

Downy mildew has been particularly prevalent this season in vineyards throughout the state. Refer to the NJ Commercial Grape Production Guide for information on control.

Figure 4. Spotted lanternfly on grapevine.

Grape Berry Moth: The timing for the third generation is past. In some hot summers a fourth generation may occur, however no further treatments should be needed, especially where insecticides are being applied for Spotted lanternfly and Spotted-wing drosophila.

Spotted Lanternfly (SLF): SLF adults are now appearing in vineyards in low numbers mostly on vineyard edges (Figure 4). As we move into September adult migration will increase and at that point growers should apply materials with long residual efficacy. More information on biology and control can be found from Penn State.

 

Blueberry

As we look to postharvest management in blueberries, the focus is on sharp-nosed leafhopper, scales, black shadow, and fall weed management. Sharp-nosed leafhopper and scale crawler numbers remain low but will continue to be monitored into September.

For weekly reports on blueberry pests and recommendations read the Rutgers Blueberry Bulletin.

Filed Under: Blueberry, Commercial Ag Updates, Fruit, Tree Fruit, Uncategorized, Wine Grape
August 26, 2025

Spanish Course for Ag Workforce – Registration Open

People shaking hands in a field with the sun setting behind themThe Rutgers Office of Continuing Professional Education will host a course on ‘Spanish for Ag and Horticulture Workforce’ from January 16-March 6, 2026. This is an online, self-paced course with approximately 21 hours of course content designed to help participants study conversational Spanish and gain technical vocabulary specific to those in the agriculture and horticulture workforce.

There is a registration fee of $825 per person. Register by January 9, 2026 for the early bird registration rate of $795.

For more information and to register, visit https://cpe.rutgers.edu/spanish-for-ag-and-horticulture-workforce.

Filed Under: Blueberry, Christmas Trees, Commercial Ag Updates, Cranberry, Field, Forage & Livestock, Food Safety, Fruit, Landscape, Nursery, & Turf, Nursery, Organic Production, Strawberry, Tree Fruit, Turf, vegetable, Vegetable Crops, Wine Grape Tagged With:
August 21, 2025

Fall Vegetable Twilight Meeting

Fall Vegetable Twilight Meeting  (REGISTRATION REQUIRED)

Norz Hill Farm & Market, LLC., 120 S Branch Rd, Hillsborough Township, NJ 08844 

Thursday, September 18, 2025 from 4:00 pm to 7:00 pm 

AGENDA  

4:00 pm – 4:15 pm Welcome, load wagons, wagon ride to field  

 4:15 pm – 4:45 pm  Drone Seeding Winter Cover Crops into Pumpkin  

Peter Nitzsche, Agricultural Agent , Rutgers Cooperative Extension of Morris County  

 4:45 pm – 5:15 pm  Small Farm Robotic Equipment for Weed Control in Vegetable Production  

Thierry Besançon, Extension Specialist – Weed Science for Specialty Crops , Rutgers New Jersey Agricultural Experiment Station  

5:15 pm – 5:45 pm  Vegetable IPM Program Update  

Amanda Quadrel, Sr. Program Coordinator – Vegetable IPM, Rutgers Cooperative Extension  

5:45 pm – 6:15 pm  Update On Important Diseases in Vegetable Production  

Andy Wyenandt, Extension Specialist – Vegetable Pathology , Rutgers New Jersey Agricultural Experiment Station  

6:15 pm – 6:20 pm  Wagon ride to tent  

6:20 pm – 6:30 pm Meal provided by Vegetable Growers Association of New Jersey  

6:30 pm – 7:00 pm  Worker Protection Standard: Checklist for Compliance  

Kate Brown, Agricultural Agent , Rutgers Cooperative Extension of Somerset County  

 

MEETING CO- SPONSORED BY THE VEGETABLE GROWERS ASSOCIATION OF NEW JERSEY

CORE, 1A, AND PP2 Pesticide Recertification Credits have been requested from NJDEP for this meeting – TBD.

TO REGISTER: Complete this registration form or call the RCE Somerset County office at 908-526-6293 ext. 4. 

Questions? Email Kate Brown, Agricultural Agent with RCE Somerset County, at kbrown@njaes.rutgers.edu.

Filed Under: Commercial Ag Updates, Organic Production, pesticide credits, vegetable, Vegetable Crops Tagged With: , , ,
August 15, 2025 and

Pre-Harvest Drop Control and Harvest Management for Apples

For growers interested in using these products on Early/Mid-Season apple varieties, now is the time to consider applying them.  Think high value varieties such as early season Honeycrisp.

As apples mature they produce the hormone ethylene.  Ethylene induces stem loosening which results in pre-harvest drop of apples.  Luckily there are several tools that when applied at optimal times can aid in the management of pre-harvest drop of apples.

*Prior to the application of any product though, remember to read and follow the product label, because the label is the law.

 

Plant Growth Regulator Options for Apple Harvest Management

Active Ingredient: AVG (aminoethoxyvinylglycine)

ReTain 

This product slows starch disappearance, fruit softening, stem loosening and red color development.

Benefits include:

Expansion of the harvest window by minimizing pre-harvest drop and retaining fruit firmness.
Enhancement of fruit size since fruit are given more time to hang onto the tree.
Color enhancement due to exposure to improved weather for fruit coloring (warm sunny days and cool nights).

Application Timing: For maximum efficacy ReTain must be applied 4 weeks prior to harvest.

Single Pick Varieties

For single pick early season varieties, establish the ‘usual’ harvest time for the variety, and if the season is running early adjust the date earlier (accordingly).  Once an accurate estimated harvest date is established count back four weeks.  This timepoint plus 7 days is the spray window for ReTain for that variety.

Calculate the spray timing for later season, single pick varieties in a similar way.  However, later varieties generally do not need harvest date adjustment due to seasonal variation in the same way early season varieties do.

Multiple Pick Varieties i.e. Gala and Honeycrisp

Spray timing for these varieties is 7 to 14 days prior to harvest/first pick.  Note that ReTain will not affect the first harvest/pick but will provide stop drop control for later season picks.

Variety Response to ReTain and Rate:

*When applying ReTain be sure to include 100% Organosilicate surfactant @ 12 ounces/100 gallons.
*Ensure there will be 6 hours of drying time after the application.

 

Active Ingredient: 1-MCP (1-Methylcyclopropene)

Harvista

Much like ReTain this product slows starch disappearance, fruit softening, red color development and pre-harvest drop.

Application Timing: It should be applied within 3 days prior to harvest, much closer to the time of harvest than a ReTain application.  This product is a bit more complicated to use in that it must be applied via a proprietary in-line injector system.

 

Active Ingredient: NAA (naphthaleneacetic acid)

NAA (Multiple Formulations)

This product provides what is considered a rescue treatment for control of fruit drop.

Application Timing: Optimum timing of spray is a couple days prior to harvest, when the first fruit begins to drop.

One application of 10 ppm NAA will provide 7-10 days of drop control.
A two-part spray of 10 ppm, one a couple days prior to harvest and a second 5 days later will provide 10-14 days of drop control.
Keep in mind it takes ~2-3 days for the sprays to take effect.

*Apply with a nonionic or organosilicate surfactant.
*Spray when the temperatures are in the mid 70’s.  If the temperature is too hot, fruit ripening can be accelerated.

 

Table 1. A quick comparison of compounds registered as stop drops.

Parameter ReTain Fruitone, PoMaxa, or Refine Harvista
Active Ingredient AVG NAA 1-MCP
What Is Blocked Ethylene production Stem loosening Ethylene action
Drop Delay (Approximate) 10–14 days 5–7 days 10–14 days
Fruit Ripening Slowed Advanced Slowed
Fruit Color Delayed No effect Somewhat delayed
Fruit Softening Delayed No change or advanced Delayed
Applied (Relative to Drop) 2-4 weeks before Just prior to Just prior to
Rescue Option? No Yes Yes
Days to Take Effect >7 ~2 ~2
Split Sprays Helpful Yes Yes Not applicable
REI 12 hours 48 hours 4 hours
PHI 7 days 2 days 3 days

Cited from 2024-2025 Penn State Tree Fruit Production Guide page 79.

 

For additional details on utilizing plant growth regulators for harvest management read:

2025/2026 New Jersey Commercial Tree Fruit Production Guide Chapter 10.
https://njaes.rutgers.edu/pubs/publication.php?pid=e002

Apple PGRs – Prevention of Preharvest Drop in Apple Orchards – Production and Harvesting – Fruit – Forage and Food Crops (psu.edu)

Filed Under: Commercial Ag Updates, Fruit, Tree Fruit
August 15, 2025 , , and

Don’t Forget Financial Assistance for Food Safety Certification and Training Available

This is the chance for eligible fresh fruit and vegetable growers to recover some of their expenses for implementing food safety practices on their farms.

For 2025:

  • Application is due between January 1, 2025 and January 1, 2026
  • Eligible expenses must be between January 1, 2025 and December 31, 2025

Eligible specialty crop operations can apply for Food Safety Certification for Specialty Crops (FSCSC) by working directly with the Farm Service Agency offices at your local FSA office for details. Applications will be accepted via mail, fax, hand delivery, or electronic means.

How the Food Safety Certification for Specialty Crops Program Works

The FSCSC program provides financial assistance for specialty crop operations that incur eligible on-farm food safety program expenses related to obtaining or renewing a food safety certification in 2025. This program helps offset costs to comply with regulatory requirements and market-driven food safety certification requirements.  FSCSC will cover a percentage of the specialty crop operation’s cost of obtaining or renewing their certification, as well as a percentage of their related expenses.

Program Eligibility

Eligibility requirements for FSCSC applicants are outlined below. We recommend you review these requirements before initiating your FSCSC application.

To be eligible for FSCSC, an applicant must:

  • Have obtained or renewed: 2025 food safety certification issued during the calendar year.
  • Be a specialty crop operation (growing fresh fruits and vegetables); and meet the definition of a small business or medium size business.
  • A small (farm) business means an applicant that had an average annual monetary value of specialty crops the applicant sold during the 3-year period preceding the program year of not more than $500,000.
  • A medium (farm) business means an applicant that had an average annual monetary value of specialty crops the applicant sold during the 3-year period preceding the program year of at least $500,001 but no more than $1,000,000.
Category of Eligible Expenses Payment Amount of Eligible Costs
Developing a Food Safety Plan for First Time Certification                      75% (no maximum)
Maintaining or Updating a Food Safety Plan                      75% up to $675
Food Safety Certification                      75% up to $2,000
Certification Upload Fees                      75% up to $375
Microbiological Testing of Produce                      75% up to 5 tests
Microbiological Testing of Soil Amendments                      75% up to 5 tests
Microbiological Testing of Water                      75% up to 5 tests
Training Expenses                      100% up to $500

FSCSC payments are calculated separately for each category of eligible costs based on the percentages and maximum payment amounts.  The FSCSC application and associated forms are available online at  farmers.gov/food-safety.

You are encouraged to contact the Farm Service Agency office about FSCSC, program eligibility, or the application process. You may also call 877-508-8364 to speak directly with a USDA employee ready to provide one-on-one assistance.

For food safety resources, information on the Food Safety Modernization Act and third party audits go to Rutgers On-Farm Food Safety

Filed Under: Commercial Ag Updates, Food Safety, Fruit, Organic Production, training, vegetable, Vegetable Crops
August 14, 2025

Upcoming NJDA Poultry Webinar

Upcoming Webinar: “For the Birds! Health Concerns of Poultry and How to Keep Them Safe”

Join the New Jersey Department of Agriculture for a free virtual webinar focused on the health and safety of backyard poultry flocks. Learn about common poultry health issues, like avian influenza, and discover practical steps to protect your birds. The event will feature a 45-minute presentation, followed by a 15-minute Q&A session with NJDA Animal Health experts. This event is catered to poultry and livestock owners, hobbyists, and anyone involved in animal health and agriculture.

🗓 Date: Tuesday, September 16, 2025
🕕 Time: 6:00 PM – 7:00 PM
💻 Location: Virtual
🔗 Register now via the QR code on the flyer

Filed Under: Commercial Ag Updates, Field, Forage & Livestock