Archives for March 2022

March 23, 2022

North Jersey Tree Fruit Twilight Meeting I FULL PROGRAM

North Jersey Tree Fruit Twilight Meeting I

March 29, 2022
4:30 PM-7:30 PM

Rutgers University Snyder Research and Extension Farm Pittstown, NJ

4:30 PM – Registration / Light Refreshments

5:00 PM – Pesticide Safety, Compliance and the Proper Use of Personal Protective Equipment
Patricia Hastings, Extension Pesticide Safety Education Program Coordinator for Rutgers NJAES

5:30 PM – Begin to load into wagons for the farm tour and educational talks
Farm tour lead by Megan Muehlbauer PhD, Agriculture and Natural Resources Agent III,
Rutgers NJAES Cooperative Extension of Hunterdon County

5:40 PM – Mating Disruption and Management for Internal Fruit Worms
Anne Nielsen PhD, Associate Extension Specialist in Entomology Rutgers NJAES

6:10 PM – Management of Early Season Disease on Apple and Peach
Norm Lalancette PhD, Associate Specialist in Tree Fruit Plant Pathology Rutgers NJAES

6:40 PM – New Jersey Tree Fruit Pest Updates and Observations
Dean Polk, State Wide Fruit IPM Agent, Rutgers Cooperative Extension
Dave Schmitt, South Jersey Fruit IPM Program Associate, Rutgers Cooperative Extension of
Gloucester County

Light refreshments will be served.

The following NJ Pesticide Recertification Credits will be awarded
1 Unit CORE,    4 Units 1A,    3 Units 10,    4 Units PP2

Please RSVP for the meetings with a call to Kim Crommelin at 908.788.1338 or
kfrey@co.hunterdon.nj.us

Filed Under: Fruit, Tree Fruit
March 23, 2022

Identifying Clearwing Moth Borers in Pheromone Traps

Clearwing moth borers comprise one of the most damaging groups of insect pests that attack shade trees and shrubs. Controls must be accurately timed, since larvae tunnel under the bark most of the year, where they are unreachable by most insecticides. Artificial pheromones of many of the clearwing moths found in the landscape are available. These pheromones are a synthetic of the sex attractant emitted by many insects & are commercially available and recommended for the IPM manager.

Plant manager viewing contents of clearwing moths captured in pheromone-baited wing-trap. (Photo Credit: Steven K. Rettke, Rutgers Coop. Ext.)

This green ash tree is showing severe symptoms from banded ash clearwing moths. Too late for pheromone traps to be of value. (Photo Credit: Steven K. Rettke, Rutgers Coop. Ext.)

 

 

 

 

 

 

 

 

 

Adult male clearwing moths are attracted to the pheromone-baited sticky trap that helps determine: 1) if the borers are present in an area; and 2) when to apply insecticide sprays. Pheromone traps enable landscape managers to accurately determine when the first emergence of the egg laying borers are expected so that insecticides can be timed & applied effectively to susceptible tree/shrub hosts. Spraying the bark of the tree to be protected with a long residual insecticide (i.e., such as pyrethroids) should effectively kill the young borer larvae as they hatch from eggs & attempt to tunnel into the stems or branches.

Hypothesized flight path of an adult male clearwing moth towards the pheromone trap. (Diagram: Steven K. Rettke, Rutgers Coop. Ext.)

[Read more…]

Filed Under: Landscape, Nursery, & Turf, Nursery, Plant Diagnostic Lab
March 22, 2022

Pest Scouting Update – 25 to 150 GDDs Plus Printable resources!

Additional resource: SLF EGG MASS GUIDE – USE FOR TRAINING (click here to download)

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.

Please Download these resources:

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 3/22/22 (using USPEST.org weather station codes):

  • Southern (NJ50): 74
  • Central (NJ10): 72
  • Northeastern (Greater NYC Metro area (D6302): 41
  • Northwestern (NJ59): 21
  • Crop type Common Name Scientific Name GDD Min (50F) GDD Max (95F) Reference Developmental / Target Stage
    Conifer Zimmerman pine moth Dioryctria zimmermani 25 100 3 1st larvae
    Conifer Cooley spruce gall adelgid Adelges cooleyi 25 120 3 Spring control of overwintering stage
    Conifer Eastern spruce gall adelgid Adelges abietis 25 100 3 Spring control of overwintering stage
    Conifer Northern pine weevil Pissodes approximatus 25 100 4 1st adults active
    Conifer Zimmerman pine moth Dioryctria zimmermani 25 100 3 1st larvae active
    Conifer Cooley spruce gall adelgid Adelges cooleyi 25 120 3 Spring control of overwintering stage
    Conifer White pine weevil Pissodes strobi 25 220 4 1st adults active
    Shade trees European fruit lecanium Parthenolecanium corni 35 145 2 Spring control of overwintering stage
    Many, evergreen Euonymus scale Unaspis euonymi 35 120 2 Spring control of overwintering stage
    Conifer European pine sawfly Neodiprion sertifer 35 145 1 Hatched larvae
    Conifer Fletcher scale Parthenolecanium fletcheri 35 148 2 Spring control of overwintering stage
    Conifer European pine shoot moth / borer Rhyacionia buoiana 50 220 4 1st larvae active
    Maples Maple bladdergall mite Vasates quadripedes 58 148 2 Spring control of overwintering stage
    Honeylocust Honeylocust plant bug Diaphnocoris chlorionis 58 246 2 Nympths / adults active
    Conifer Pine tortoise scale Toumeyela parvicornis 58 148 2 Cralwer activity
    Conifer Pine bark adelgid Pineus strobi 58 618 2 Spring control of overwintering stage
    Conifer Balsam twig aphid Mindarus abietinus 60 100 4 Egg hatch
    Many Southern red mite Oligonychus ilicis 69 157 RU Spring hatch
    Conifer Eastern pine shoot borer Eucosma gloriola 75 200 4 1st adults active
    Malus, Prunus, many Eastern tent caterpillar Malacosoma americanum 90 190 2 Larvae treatment before tents apparent
    Many Gypsy moth Lymantria dispar 90 448 RU Larvae treatment (early instars)
    Conifer Cooley spruce gall adelgid Adelges cooleyi 90 180 4 1st adults active – Douglas fir
    Malus, Prunus, many Eastern tent caterpillar Malacosoma americanum 90 190 2 Larvae treatment before tents apparent (near 150-GDD50)
    Malus, Prunus, many Eastern tent caterpillar Malacosoma americanum 90 190 2 Larvae treatment before tents apparent (near 150-GDD50)
    Conifer Balsam twig aphid Mindarus abietinus 100 150 4 Stem mothers present (control target)
    Conifer Pine engraver (Ips bark beetle) Ips spp. 100 150 4 1st adults active
    Conifer European pine sawfly Neodiprion sertifer 100 195 4 1st larvae active
    Pieris Andromeda lace bug Stephanitis takeyai 115 279 RU Nymphs (1st generation)
    Azalea Azalea lace bug Stephanitis pyrioides 118 372 RU Nymphs (1st generation)
    Conifer Larch casebearer Coleophora laricella 120 150 4 Egg hatch
    Elm, Service berry Woolly elm aphid Eriosoma americana 121 246 2 (6) Control target
    Elm, Service berry Woolly elm aphid Eriosoma americana 121 246 2 (6) Control target
    Birch Birch leafminer Fenusa pusilla 123 290 RU Adults – egg laying
    Many Gypsy moth Lymantria dispar 145 200 4 Egg hatch, 1st larvae
    Holly Holly leaf miner Phytomyza ilicis 147 265 RU Adults – egg laying
    Many Cankerworms, inch-worms, loopers (many) 148 290 2 Larvae treatment
    Lilac, ash, privet, many Lilac / Ash Borer Podosesia syringae 148 299 2 Adult flight
    Yews, Rhododendrons, many Black Vine Weevil Otiorhynchus sulcatus 148 400 2 Pupation / Adult emergence
    Dogwood, many Dogwood Borer Synanthedon scitula 148 700 2 Adult activity
    Conifer Spruce spider mite Oligonychus ununguis 150 175 4 1st egg hatch
    Conifer Spruce needleminer Endothenia albolineana 150 200 4 1st larvae active
    Conifer Balsam gall midge Paradiplosis tumifex 150 300 4 Adults laying eggs
    Conifer Hemlock woolly adelgid Adelges tsugae 150 150 RU Eggs and 10% hatch
    Conifer Spruce spider mite Oligonychus ununguis 150 175 4 1st egg hatch
    Conifer Spruce needleminer Endothenia albolineana 150 200 4 1st larvae active
    Conifer Balsam gall midge Paradiplosis tumifex 150 300 4 Adults laying eggs
    Conifer Hemlock woolly adelgid Adelges tsugae 150 150 RU Eggs and 10% hatch
    Conifer Spruce spider mite Oligonychus ununguis 150 175 4 1st egg hatch
    Conifer Spruce needleminer Endothenia albolineana 150 200 4 1st larvae active
    Conifer Balsam gall midge Paradiplosis tumifex 150 300 4 Adults laying eggs

References:

RU Rutgers Cooperative Extension – Landscape IPM Notes
2 http://ccetompkins.org/resources/using-growing-degree-days-for-insect-management
3 https://extension.psu.edu/ipm-basics-for-christmas-trees#section-2
4 https://www.canr.msu.edu/ipm/agriculture/christmas_trees/gdd_of_conifer_insects
5 https://www.agriculture.nh.gov/publications-forms/documents/landscape-pests.pdf
6 https://extension.umd.edu/ipm/pest-predictive-calendar-landscapenursery
7 https://www.canr.msu.edu/ipm/agriculture/christmas_trees/gdd_of_landscape_insects
Unv. Del. Coorespondance with Dr. Kunkel (University of Delaware)-evolving GDD ranges
Compiled by – Timothy J. Waller, Ph.D. – Rutgers Cooperative Extension, Cumberland County Nursery Crops – twaller@njaes.rutgers.edu

 

Filed Under: Landscape, Nursery, & Turf, Nursery, Plant Diagnostic Lab, Turf Tagged With: , , , , , , ,
March 21, 2022

NJ Pesticide Credits. March 24th Weed Management Webinar

For NJ applicators in 10, 1A and PP2

4 category credits.

A virtual workshop will be held on March 24 from 8 am to 11 am for farmers interested in learning how to use integrated weed management (IWM)) techniques to control  troublesome weeds in their fields. This is the fifth year for the workshop series, which is a collaborative effort between the University of Maryland, Virginia Tech, and the University of Delaware.

Education regarding weed identification and integrated management strategies continues to be critically important to enable early intervention and effective management options.  2022 is shaping up to be especially challenging with anticipated shortages of many commonly used herbicides. The 2022 workshop series will provide tactics to manage important weeds given limited herbicide availability and increased input prices. Material covered will target row-crop production systems, but tactics learned may be applicable to other systems. These workshops are free, but participants will need to register at https://go.umd.edu/IWM.

Pesticide credits will be available for MD, DE, NJ and WV. Two hours of CCA continuing  education credits will be offered for each session.

For more information, contact Kurt Vollmer at (443) 446-4260 or Ben Beale at (301) 475- 4481.

If you are attending from NJ, contact Melissa Bravo to upload your pesticide license and photo i.d. at 856-340-6582. This meeting counts as an ‘in person’ meeting as long as you stay on camera. If you cannot stay on camera the entire time, no credits will be awarded. 

NJ Applicators remember, attendees of online courses can earn 25% of their credits for each category from online sources.  Only those whose 5-year recertification period is ending 10/31/2022 are eligible to earn 100% of their credits online.  Attendees can check their eligibility online at www.pcpnj.org.

—

Kurt M. Vollmer, Ph.D.

Extension Specialist-Weed Management
University of Maryland
Wye Research and Education Center
124 Wye Narrows Drive
Queenstown, MD 21658
(443) 446-4260
Filed Under: Commercial Ag Updates, Field, Forage & Livestock, Fruit, Landscape, Nursery, & Turf, Uncategorized, Vegetable Crops
March 21, 2022

SAVE THE DATES! North Jersey RCE Educational Meetings for Fruit and Vegetable Growers

SAVE THE DATES!

North Jersey RCE Educational Meetings for Fruit and Vegetable Growers

 

North Jersey Tree Fruit Twilight Meeting I

March 29, 2022 4:30-7:30pm

Rutgers University Snyder Research Farm Pittstown, NJ

 

North Jersey Tree Fruit and Vegetable Twilight Meeting II

April 19, 2022 4:30-7:30pm

Alstede Farms Chester, NJ

 

North Jersey Tree Fruit and Vegetable Twilight Meeting III

May 24, 2022 4:30-7:30pm

Phillips Farm Milford, NJ

 

Meetings will include tours of both research plots and commercial farm operations, and presentations by extension faculty and staff on current pests, horticultural issues and management techniques.

Light refreshments will be served for each meeting.

 

NJ Pesticide Recertification Credits are anticipated for all meetings.

Please RSVP for the meetings with a call to Kim Crommelin at 908.788.1338 or kfrey@co.hunterdon.nj.us

Filed Under: Fruit, Tree Fruit
March 18, 2022

Are Your Produce Buyers Talking about Third-Party Audits?

An increasing number of farms are being asked by their wholesale produce customers to comply with a third-party audit.  What do you need to know if a buyer asks you to have a third-Baskets of tomatoesparty audit?

Who would ask for a third-party audit? Current buyers of your product may notify you that you need a third-party audit in order for them to continue to purchase your product. Or a prospective buyer may tell you that in order to start purchasing your product you will need to pass a third-party audit.

What is a third-party audit? A third-party audit is an assessment of your production practices in compliance with a set of produce safety standards.  Requirements include educational training in produce safety, a written food safety plan (including written policies, standard operating procedures, documentation of activities, and records) specific to your operation that meet the standards of the audit your buyer requires. A third-party audit is conducted by an audit firm or outside agency.  The audit can take from several hours to several days based on your operation. The farm pays the audit fees and receives a certificate of compliance, the audit is required annually. Farms may have multiple buyers who require different audits, resulting in multiple audits annually.

Who conducts third-party audits? Auditing firms that buyers may rely on: USDA GAP, USDA Harmonized, Primus, Global GAP, BRC, SQF, etc. In New Jersey USDA audits are conducted by the New Jersey Department of Agriculture Division of Marketing and Development.

What questions should you ask of the buyer?
– What audit firm are they requiring you to use?
– What commodities do they require the audit to cover?
– When do they require you to have the audit completed?
– What type of training is required of the farm and how often is required?

Third-party audits should not be confused with the Food Safety Modernization Act Produce Safety Rule, a federal regulation that most growers of produce that is typically consumed raw must comply with.

 

Filed Under: Commercial Ag Updates, Food Safety