Landscape, Ornamentals, Nursery, and Turf Edition

Seasonal updates on ornamental, nursery, and turf pests.
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March 10, 2025

Stop the Bleed Trainings: Hunterdon and Burlington County

Rutgers Cooperative Extension has partnered with the Vegetable Growers Association of NJ to offer two upcoming Stop the Bleed trainings. Don’t miss this opportunity to learn the life-saving skills of pressure application, wound packing, and use of tourniquets. Attendees of this free training will also receive a complementary bleeding control kit. Space is limited, register today!

HUNTERDON COUNTY:

  • Wednesday, March 19, 2025 from 6:30-8:00 pm
  • Amwell Valley Fire Company located at 22 County Road #579, Ringoes, NJ 08551
  • Training will be delivered by trainers from Robert Wood Johnson University Hospital
  • Please complete our pre-registration form by Friday, March 14

BURLINGTON COUNTY:

  • Tuesday, April 8, 2025 from 10:00 am to 12:00 pm
  • Rutgers EcoComplex located at 1200 Florence Columbus Rd, Fieldsboro, NJ 08505
  • Training will be delivered by students from Rutgers New Jersey Medical School
  • Please complete our pre-registration form by Monday, April 1

Questions? Email Kate Brown, RCE-Somerset County Ag Agent, at kbrown@njaes.rutgers.edu or call 908-526-6293.

Filed Under: Commercial Ag Updates, Field, Forage & Livestock, Fruit, Landscape, Nursery, & Turf, Vegetable Crops Tagged With:
March 8, 2025

Black Knot Fungus of Prunus: A Common Landscape Disease

Overview:

Black knot is a cankering fungus disease that infects many trees and shrubs within the genus Prunus. It is caused by the native North American fungal pathogen Apiosporina morbosa. Although black knot fungal galls have been found in a couple of dozen Prunus species, not all species are equally susceptible, and it can be most destructive to certain varieties of cherries and plums (Photo 1).

The following species can be highly susceptible to infections: Japanese plums (Prunus salicina), European and American plums (Prunus domestica & Prunus americana), Sweet cherry (Prunus avium), Mahaleb cherry (Prunus mahaleb), and cultivated species of chokecherries.

This blog reviews the symptoms and signs of Black Knot Disease. It’s management by pruning and fungicide treatments is discussed. Finally, a handful of resistant plum varieties is provided.

Photo 1: This Japanese Plum species is highly susceptible to Black Knot Disease.

Photo 1: This Japanese Plum species is highly susceptible to Black Knot Disease. (Photo Credit: Steven K. Rettke, Rutgers Coop. Ext.)

[Read more…]

Filed Under: Landscape, Nursery, & Turf, Nursery, Plant Diagnostic Lab
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: , , , , , , , , , ,
March 3, 2025

SAVE THE DATE: Farm Viability Extension Specialist Candidate Seminar

Manlin Cui, candidate for Extension Specialist in Farm Viability, will deliver her stakeholder seminar “Bridging Research and Practice: Enterprise Budgets, Sustainable Innovations, and Consumer Insights” on Monday, March 10, 2025 from 7:00 to 8:00 pm. 

The seminar will take place at the Middlesex County E.A.R.T.H. Center located at 42 Riva Ave, North Brunswick Township, NJ 08902. We welcome you to attend in person, but a Zoom option is available. Email kbrown@njaes.rutgers.edu for Zoom attendance troubleshooting. [Read more…]

Filed Under: Commercial Ag Updates, Field, Forage & Livestock, Fruit, Landscape, Nursery, & Turf, Vegetable Crops Tagged With: ,
March 2, 2025

Stop the Bleed Training in Burlington County: Registration Open

Rutgers Cooperative Extension, in partnership with the Rutgers New Jersey Medical School, will host a Stop the Bleed training on Tuesday, April 8, 2025. The training will be held from 10:00 am – 12:00 pm at the Rutgers EcoComplex located at 1200 Florence Columbus Rd, Fieldsboro, NJ 08505.

Don’t miss this opportunity to learn the life-saving skills of pressure application, wound packing, and use of tourniquets. Attendees of this free training will also receive a complementary bleeding control kit.

Space is limited and pre-registration is required. Please complete our pre-registration form by Monday, April 1.

Questions? Email Kate Brown, RCE-Somerset County Ag Agent, at kbrown@njaes.rutgers.edu or call 908-526-6293.

Filed Under: Commercial Ag Updates, Field, Forage & Livestock, Fruit, Landscape, Nursery, & Turf, Vegetable Crops Tagged With:
February 27, 2025

Farmer Resource Fair in Somerset County

All New Jersey farmers are invited to attend this Farmer Resource Fair which will feature an array of agricultural service providers. In-between a light breakfast and a hearty lunch, there will be engaging presentations and opportunities to visit with service providers at their table displays. The program schedule, as well as a preliminary list of service providers who’ve confirmed their attendance, is included below.

The event will be held on Friday, April 11, 2025 from 8:30 am to 2:00 pm at the Ted Blum 4-H Center located at 310 Milltown Road, Bridgewater, NJ 08807.

Click here to register for this free event (registration is required). Please register by April 1, 2025.

This collaborative event is being organized by Rutgers Cooperative Extension of Somerset County, Somerset County Agriculture Development Board, and the State Agriculture Development Committee Next Gen Program. We hope you will join us! [Read more…]

Filed Under: Christmas Trees, Commercial Ag Updates, Field, Forage & Livestock, Fruit, Landscape, Nursery, & Turf, Vegetable Crops