Rutgers Cooperative Extension
Click here for a PDF of April 22, 2025 webinar that can be printed and used as a field guide or similar
Click here for a VIDEO recording of April 22, 2025 webinar
5/13/25 sessions topics:
Conifer Issues:
Ornamental nursery:
IPM monitoring:
2025 Registration includes:
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.
This program is free, however registration is required.
(Next webinar Tu 4/22 at 12PM)
Click here for a PDF of April 08, 2025 webinar that can be printed and used as a field guide or similar
Click here for a VIDEO recording of April 08, 2025 webinar
Next sessions topic:
2025 Registration includes:
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.
This program is free, however registration is required.
(Next webinar Tu 4/22 at 12PM)
Topics applicable to Christmas Tree Production in the first session include:
We are trying to make these seminars as applicable as possible to as many different ornamental crop producers.
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:
This program is free, however registration is required.
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:
This program is free, however registration is required.
| 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.
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.
