June 23, 2025

NEW – Ornamental IPM Website & Upload of 6/10 Webinar – Next Session Tuesday 6/24

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

(Join us for the next Session Tuesday 6/24/25)

UPLOADS 6/10 SESSION: (contains information on oriental beetle, SLF, Two-spotted spider mites, soft scales, box tree moth, bacterial shothole, virus symptoms)

  1. Click here for a PDF of June 10, 2025 webinar
  2. Click here for VIDEO of June 10, 2025 webina

Previous webinars:

New –Rutgers Ornamental IPM Program Website

With links to all PDFs and recorded Webinars

Pest and Disease specific information 

…and ever expanding Resources  

Click here for the NEW Rutgers Ornamental IPM Program Website

Filed Under: Christmas Trees, Landscape, Nursery, & Turf, Nursery, Turf Tagged With: , , , , , , , , , , , , , , , , , ,
May 14, 2023 , and

Conifer Pest and Disease Update 5/15/2023

In this edition:

  • Insects – Pest Scouting with growing degree-days (250-600 GDD50)
    • Scales
    • Mites
  • Diseases
    • Needle casts (Rhabdocline and Swiss needlecasts – Douglas fir, & Rhizosphaera – spruces)
    • Phytophthora
  • Soil fertility – resources

Please click “read more” below to get updates on pests, diseases, and other important resources for the week of 5/15/2023.

[Read more…]

Filed Under: Christmas Trees Tagged With: , , , , , , , , , , , , , , , , , , , , , , , , ,
May 14, 2023 , and

Nursery Pest and Disease Update 5/15/2023

In this edition:

  • Insects:
    • Scale crawler emergence
    • Borer insects
    • Upcoming problem pests / Redheaded flea beetle / SLF / Pest Scouting Guides
  • Diseases:
    • Leaf spot / foliage disease management
    • Fire blight on Rosaceous hosts
    • Canker fungi
    • Boxwood blight
    • Oomycete root diseases (Phytophthora, Pythium, Phytopythium)
  • Plant Spotlight:
    • NJ native azalea species

Please click “read more” below to get updates on pests, diseases, and other important resources for the week of 5/15/2023.

[Read more…]

Filed Under: Landscape, Nursery, & Turf, Nursery, Turf Tagged With: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,
April 27, 2023

Nursery Pest Update 4/25 – 5/5/2023

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 4/25/2023 (these change throughout the season!)
Region Location 25-Apr 1-May 1-Jun 1-Jul 1-Aug
Southern Upper Deerfield (NJ50) 251 281 682 1370 2218
Central Howell / Freehold (NJ10) 188 207 537 1160 1957
Northern High Point (NJ59) 142 143 371 864 1507
Forecast: 7-month NMME based seasonal climate forecast (USPEST.ORG)

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.

Please continue reading for much more detailed and important information!

[Read more…]

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