Rutgers University | New Jersey Agricultural Experiment Station | Pesticide User Responsibility

May 19, 2025 , and

Ornamental IPM 5/13 Recording Upload – NUMEROUS PEST ALERTS

Still time to Sign up for the 2025 – Rutgers Ornamental IPM Program

(Join us for the next Session Tuesday 5/27/25)

PREVIOUS SESSION: (contains information on boxwood pests, armored scales, needlecast diseases, oomycetes )

  1. Click here for a PDF of May 13, 2025 webinar
  2. Click here for VIDEO of May 13, 2025 webinar

Note we have clearwing borer lures and wing or delta traps, scale crawler tape, and yellow sticky cards available to commercial grower program members at our Cumberland (twaller@njaes.rutgers.edu) and Monmouth (william.errickson@njaes.rutgers.edu) RCE offices.

ALERTS:

  1. Scale crawler emergence throughout the state
  2. Spruce spider mite activity and damage
  3. Boxwood Blight Risk Model for next 7days
  4. Bronze Birch Borer (BBB) approaching adult emergence
  5. Clearwing Borer adult flight – time to monitor / treat
  6. Red-headed flea beetle (RHFB) egg hatch – adult emergence
  7. Oomycete material considerations

Previous webinars:

 

(click the ‘Read More’ below for complete dates in S-C-Northern NJ per pest)

 

[Read more…]

Filed Under: Christmas Trees, Landscape, Nursery, & Turf, Nursery, Turf Tagged With: , , , , , , , , , , , , , , , , , , , , , , ,
May 12, 2025

Ornamental IPM – Blight and pest alerts – next IPM Session 5/13/25

  1. Serious potential for Boxwood Blight
  2. Bronze Birch Borer (BBB) approaching adult emergence
  3. Clearwing Borer adult flight – time to monitor
  4. Red-headed flea beetle (RHFB) egg hatch – adult emergence soon
  5. Oomycete material considerations
  6. (click the ‘Read More’ below for complete dates in S-C-Northern NJ per pest)

Still time to Sign up for the 2025 – Rutgers Ornamental IPM Program

(Join us for the next Session Tuesday 5/13/25)

Note we have Clearwing borer lures and wing or delta traps, scale crawler tape, and yellow sticky cards available to commercial grower program members at our Cumberland (twaller@njaes.rutgers.edu) and Monmouth (william.errickson@njaes.rutgers.edu) RCE offices.

[Read more…]

Filed Under: Christmas Trees, Landscape, Nursery, & Turf, Nursery, Turf Tagged With: , , , , , , , , , , , , , ,
March 31, 2025 and

Register for the NEW – 2025 Ornamental IPM Program PLUS Boxwood Blight, Pest emergence, Updates

Ornamental IPM 2025 v1 flyer

Please consider signing up for the NEW 2025 – Rutgers Ornamental IPM Program.

The focus of this program is to provide timely updates on pest, disease, and weeds impacting commercial ornamental producers. The webinars will focus on the most important pests for a 2 week interval, will be recorded, and will be shared shortly thereafter with Spanish overdub (spoken word). The trap packages are in an effort to find grower led solutions for monitoring economically important pests throughout the multiple regions of New Jersey. Please consider joining this program for its inaugural year.

Registration includes:

  • Site visit to your ornamental nursery/farm from Rutgers agents
  • Delivered printed IPM resources (Guides, factsheets, bulletins)
  • Free pheromone & sticky trap kit + guidance on setup/monitoring
  • Access to live bi-weekly webinars (Zoom)
  • (First session NEXT TUESDAY 4/8 @ 12PM)
  • Every Second and Fourth, Tuesday, April through September
  • Webinars will be recorded – posted later with Spanish overdub

This program is free, however registration is required.

click here to Register

Boxwood Blight Risk Assessment as of 3/4/2025
Region Location CODE 31-March 1-April 2-April 3-April 4-April 5-April
Southern Upper Deerfield NJ50 Very Low  Very Low  Very Low  Low Minor Risk Very Low 
Central Howell / Freehold NJ10 Minor Risk Very Low  Very Low  Low Minor Risk Very Low 
Northern Wantage NJ79 Low Very Low  Very Low  Low Risk Very Low 
M T W TH F S
 Please check YOUR LOCAL risk (click here)

Please download and print the Rutgers Nursery and Landscape Pest Scouting Guide  or  Conifer and Christmas Tree Pest Scouting Guide and refer to this post “Obtaining your local growing degree-days (GDD)” for additional information.  (See pest scouting guides for complete list of references) 

Please SHARE what you SEE!! If you see a pest, disease, otherwise interesting or troublesome issue please report it to the Working Group by following the QR Code on the front of the Pest Scouting Guides or by filling out this reporting form.

Keep reading for more resources!

 

[Read more…]

Filed Under: Christmas Trees, Landscape, Nursery, & Turf, Nursery, Turf Tagged With: , , , , , , , , , , , , , , , ,
March 4, 2025

Approaching 2025 Boxwood Blight Season

March weather is always unpredictable, however, if we have sustained periods of increased temperatures and spring rains, boxwood blight (BWB) will become an issue quickly.

New – [pictorial tri-fold] Common Boxwood Pests and Diseases (click-here). This includes Box Tree Moth images. Print the PDF out double-sided, then fold. We are working to have a better resolution print of this material very soon.

If you suspect Boxwood Blight and would like to have this verified – please contact the Rutgers Plant Diagnostic Laboratory (click here) for sample submission instructions

Boxwood Blight Risk Assessment as of 3/4/2025
Region Location CODE 3-March 4-March 5-March 6-March 7-March 8-March
Southern Upper Deerfield NJ50 Very Low  Very Low  Low Minor Risk Very Low  Very Low 
Central Howell / Freehold NJ10 Very Low  Very Low  Low Minor Risk Very Low  Very Low 
Northern High Point NJ59 Very Low  Very Low  Very Low  Minor Risk Very Low  Very Low 
M T W TH F S
 Please check YOUR LOCAL risk (click here)

There is a minor potential for boxwood blight infections this Wednesday & Thursday, throughout ALL of NJ. Incoming rains, coupled with warmer temperatures may initiate boxwood blight infections this week.

  • It is time to begin protective fungicide applications in boxwoods throughout the state if you have not already done so. 

  • If BWB is important to your business – Use the USPEST – PUSH Alerts – (click here) – to setup weekly email alerts. Create an account, watch the tutorial, and then set up your subscriptions. You select which locations (as many as you like), days you want to receive emails, and what you would like to receive alerts about (BWB and a variety of other pests and diseases). Rutgers is not directly affiliated, however this is an incredible tool. 

[Read more…]

Filed Under: Landscape, Nursery, & Turf, Nursery, Turf Tagged With: , , , , , , , , , ,
May 20, 2024

Nursery Update 5/20/24 – Red-headed flea beetle and flathead borer ADULT emergence, Boxwood blight, bagworms, more

Please note: The Rutgers Nursery and Green Industry Working Group is working to deliver regular pest and disease updates throughout the season. These will be in addition to important alerts, critical topics, and pesticide credit opportunities. This tool is made for you, the commercial agriculture business, so please let us know if there are particular topics you would like to see included in the regular update.

Email:  twaller@njaes.rutgers.edu Phone: 856-451-2800 Ext. 1.

 

Projected GDD50 accumulation as of 5/20/2024 (for June – July)
CODE Location 20-May 1-Jun 15-Jun 1-Jul 15-Jul
NJ50 Upper Deerfield (South) 437 658 957 1363 1766
NJ73 Vineland (South) 454 670 961 1360 1755
KMIV Millville Airport (South) 445 655 942 1338 1730
NJ05 Greenwich (South) 453 681 984 1395 1798
NJ10 Howell (Central) 344 545 809 1180 1554
N59 High Point (North) 275 463 683 997 1316
USPEST.ORG – Model: simple average/growing degree-day, Min: 50F – Max: 95F, NMME forecast
Forecast:  7-month NMME based seasonal climate forecast (USPEST.ORG) – Subject to change regularly = Check Often

Please download and print the Rutgers Nursery and Landscape Pest Scouting Guide  or  Conifer and Christmas Tree Pest Scouting Guide and refer to this post “Obtaining your local growing degree-days (GDD)” for additional information.  (See pest scouting guides for complete list of references) 

Please SHARE what you SEE!! If you see a pest, disease, otherwise interesting or troublesome issue please report it to the Working Group by following the QR Code on the front of the Pest Scouting Guides or by filling out this reporting form.

Keep reading for more ALERTS – Red-headed flea beetle and Borer ADULT EMERGENCE, Boxwood Blight, bagworms [Read more…]

Filed Under: Landscape, Nursery, & Turf, Nursery Tagged With: , , , , , , , , , , , , , , ,
April 30, 2024

Nursery Update 4/30/24 -Boxwood blight, borers, flea beetles

Please note: The Rutgers Nursery and Green Industry Working Group is working to deliver regular pest and disease updates throughout the season. These will be in addition to important alerts, critical topics, and pesticide credit opportunities. This tool is made for you, the commercial agriculture business, so please let us know if there are particular topics you would like to see included in the regular update.

Email:  twaller@njaes.rutgers.edu Phone: 856-451-2800 Ext. 1.

Insect Pests

Projected GDD50 accumulation as of 4/30/2024
CODE Location 1-Apr 1-May 1-Jun 1-Jul 1-Aug
NJ50 Upper Deerfield (South) 47 237 696 1408 2308
D4116 Bridgeton (South) 45 172 632 1346 2243
KMIV Millville Airport (South) 57 249 676 1362 2237
NJ05 Greenwich (South) 53 247 716 1436 2338
NJ10 Howell (Central) 33 172 551 1191 2026
N59 High Point (North) 18 117 440 990 1711
USPEST.ORG – Model: simple average/growing degree-day, Min: 50F – Max: 95F, NMME forecast
Forecast:  7-month NMME based seasonal climate forecast (USPEST.ORG) – Subject to change regularly = Check Often

Please download and print the Rutgers Nursery and Landscape Pest Scouting Guide  or  Conifer and Christmas Tree Pest Scouting Guide and refer to this post “Obtaining your local growing degree-days (GDD)” for additional information.  (See pest scouting guides for complete list of references) 

Please SHARE what you SEE!! If you see a pest, disease, otherwise interesting or troublesome issue please report it to the Working Group by following the QR Code on the front of the Pest Scouting Guides or by filling out this reporting form.

Keep reading for more ALERTS – Boxwood Blight risk this week – Red-headed flea beetle timing, borer activity, and upcoming pests.

[Read more…]

Filed Under: Landscape, Nursery, & Turf, Nursery, Turf Tagged With: , , , , , , , , , , , , , , , , , ,