Landscape, Ornamentals, Nursery, and Turf Edition
Seasonal updates on ornamental, nursery, and turf pests.
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Companion Website Links:
Rutgers Turf Blog - Articles on turfgrass diseases and cultural practices for the commercial turfgrass industry. Subscription available via RSS.
Rutgers Weather Forecasting - Meteorological Information important to commercial agriculture.
EPA Posts Draft Revised Biological Opinion for Malathion, Chlorpyrifos, and Diazinon for Public Comment
Spotted Lanternfly Summit 2022 (USDA-NIFA + collaborators) – Most up-to-date research from across the region
Next week, many of the researchers focused on the invasive Spotted Lanternfly will be presenting their findings at the 2022 Spotted Lantern Fly Summit.
(Quote from stopSLF.org) “Funding was provided by the Northeastern IPM Center to form a working group in summer of 2018 with Penn State as the lead institution. The working group met several times and submitted a successful proposal to the USDA-NIFA Specialty Crop Research Initiative in December 2018 to study the biology, ecology, and management of spotted lanternfly.”
Rutgers and many other universities, Federal, and State research groups from all SLF impacted areas are set to share their most up-to-date findings. Topics will cover various commodities, and will be research heavy, however, these sessions may prove valuable to you and your constituents.
Click here to register for this free event – 2022 Spotted Lanternfly Summit – Updates on research
NJDA and NJDEP to Address Pesticide License Recertification Issues
NJDA Secretary Fisher recently shared a memo regarding a number of private pesticide licensees who have not received their current licenses from the NJDEP Pesticide Bureau. Following is most of the text of that memo.
Through a recent meeting between NJDA and the NJDEP Pesticide Bureau staff, we have identified two primary areas that may need your particular attention to ensure your license remains active:
1.) Not receiving nor submitting their invoices via the postal service through the mail. In this case, licensees can get their invoices online through the NJDEP pesticide website by submitting their invoices to NJDEP for processing when received, even if there is a $0.00 (zero) dollar value.
2.) Lack of credits through either Core or PP2, or a combination of both. There is a 5-year time period for all licensees to get enough credits for their license. Courses are available online for licensees to get credits. Once the coursework is completed online, it should take approximately two weeks for the unit to process the information to post on their website. Directions below explain how to locate and pay for invoices (which must be submitted back to the unit for processing, even if it is a $0.00 [zero] dollar invoice).
Licensees can check on the number of credits they have acquired by going to the NJDEP pesticide webpage and following the directions posted there.
Below are the directions necessary to look up invoice numbers and then use said numbers to pay for a license online. Once again, we remind you paying your invoice online is a faster way to receive your license. All invoices, even if it’s $0.00 (zero) dollars need to be processed, otherwise your license will not be issued.
Please follow the NJDEP directions below:
Directions to locate an invoice number
- Go to www.pcpnj.org
- Scroll to the bottom of the page. Under heading About Us click on “Pesticides”
- Scroll to the bottom of the page and “Click here to view Links.”
- Under the heading Online Payments and Reports Click on the link labelled “Invoice Numbers for Unpaid License Invoices”
- Enter License number (make sure to capitalize any letters at the end or your license number) and other items
- Click Submit
Directions to pay for license online
- Go to www.pcpnj.org
- Scroll to the bottom of the page. Under heading About Us click on “Pesticides”
- Scroll to the bottom of the page and “Click here to view Links.”
- Under the heading Online Payments and Reports, click on the link labelled “Pay For Your License Online”
- Enter Invoice number (found on paper invoice, or previously located using our website using directions above)
- Enter License number (make sure to capitalize any letters at the end or your license number)
- Click Submit and follow prompts from there
Sincerely,
Douglas H. Fisher
Central Jersey Turf and Ornamental Institute: March 15
Rutgers Cooperative Extension presents
2022 Central Jersey TURF & ORNAMENTAL Institute
Virtual Program $25
Tuesday, March 15
10:00 am – 2:30 pm
This annual event is brought to you by Rutgers Cooperative Extension of Middlesex, Monmouth, Mercer, Burlington, Ocean, Cumberland, & Somerset Counties. Seminar topics will benefit those who work in grounds maintenance including school board members, maintenance supervisors, employees of highways, parks, cemeteries, industrial grounds, lawn & home ground services, garden center operators and nurserymen.
Pesticide Recertification Credits Available
- Core (2)
- 2 (2)
- 3A (4)
- 3B (3)
- 8C (5)
- 9 (1)
- PP2 (5)
Fertilizer Credits
- ProFact (2)
To register visit: https://go.rutgers.edu/7y9w43do
For more information contact
Rutgers Cooperative Extension of Monmouth County
Phone: 732-431-7260
Increasing temperatures = scout for insects pests! 2022 Nursery and Conifer Pest Scouting Guides HERE
With the increases in daily temperature averages expected over the next week for the southern and central areas of NJ, pest scouting should commence on commercially important ornamental crops and landscapes. Typically, in our region, growing degree-days (GDD50) are counted beginning March 1st (known as a biofix date), however this year by March first we may see degree-day accumulation approaching 20+. Therefor scouting efforts should be commenced, especially in conifers.
We have compiled the GDD resources into one single document – please download and print multiple copies of this for yourself and employees in efforts to best scout for these insect pests. These guides do not dictate when to spray, rather they inform scouting ranges for insect pests, vulnerable life-stages, and overlapping timeframes for multiple troublesome pests.
Download here:
Nursery and Landscape Pest Scouting Guide 2022 PDF (note this contains conifer pests as well)
Conifer Pest Scouting Guide 2022 PDF
Refer to this post “Obtaining your local growing degree-days” for additional information
We will be making regular announcements throughout the season, however we wanted you to have this beta-version of the compiled growing-degree day information. This will be updated and modified throughout the season – PLEASE let me know what difference you are seeing in the field so we can continue to make this resource better for all of us.
Contact: twaller@njaes.rutgers.edu (or call the Cumberland County Extension Office – 856-451-2800)
Growing degree-days as of writing this (using USPEST.org weather station codes):
- Southern (NJ50): 13
- Central (NJ10): 13
- Northeastern (Greater NYC Metro area (D6302) and Northwestern (NJ59): 0
Crop type |
Common Name |
Scientific Name |
GDD Min (50F) |
GDD Max (95F) |
Reference |
Developmental / Target Stage |
Conifer |
Conifer rust mites |
Eriophyidae |
7 |
22 |
4 |
Overwintering eggs hatch |
Pomes, Stone fruit |
European red mite |
Panonychus ulmi |
7 |
58 |
2 |
1st adults active |
Conifer |
White pine weevil |
Pissodes strobi |
7 |
58 |
RU |
Overwintering adults become active / prevent egg laying |
Deciduous |
Oystershell scale |
Lepidosaphes ulmi |
7 |
91 |
2 |
Spring control of overwintering stage |
Deciduous, Yew |
Cottony camellia / taxus scale |
Pulvinaria floccifera |
7 |
91 |
5 |
Spring control of overwintering stage |
Many |
Southern red mite |
Oligonychus ilicis |
7 |
91 |
5 |
Overwintering eggs hatch |
Conifer |
Taxus mealybug |
Dysmicoccus wistariae |
7 |
91 |
2 |
Spring control of overwintering stage |
Oaks |
Kermes oak scales |
Kermes spp. |
7 |
91 |
2 |
Spring control of overwintering stage |
Conifer |
Elongate hemlock scale |
Fiorinia externa |
7 |
120 |
2 |
Spring control of overwintering stage |
Many |
Aphids |
Aphidoidea |
7 |
120 |
2 |
Spring control of overwintering stage |
Conifer |
Spruce spider mite |
Oligonychus ununguis |
7 |
121 |
RU |
Overwintering eggs hatch |
Oaks |
Golden oak scale |
Asterolecanium variolosum |
7 |
121 |
5 |
Spring control of overwintering stage |
Conifer |
Pales weevil |
Hylobius pales |
7 |
121 |
RU |
Overwintering adults become active / prevent egg laying |
Magnoliaceae |
Tuliptree scale |
Toumeyella liriodendri |
12 |
121 |
2 |
Spring control of overwintering stage |
Rhododendron, Azalea |
Azalea lacebug |
Stephanitis pyrioides |
18 |
372 |
RU |
Spring control of overwintering stage |
White and Scotch Pine |
White pine aphid |
Cinara strobi |
22 |
91 |
RU |
Spring control of overwintering stage |
Conifer |
Pine bark adelgid |
Pineus strobi |
22 |
58 |
2 |
Spring control of overwintering stage |
Magnoliaceae |
Magnolia scale |
Neolecanium cornuparvum |
22 |
91 |
2 |
Spring control of overwintering stage |
Conifer |
Spruce bud scale |
Physokermes piceae |
22 |
120 |
2 |
Spring control of overwintering stage |
Conifer |
Juniper scale |
Carulaspis juniperi |
22 |
148 |
2 |
Spring control of overwintering stage |