Archives for April 2022

April 18, 2022

New Online FSMA Produce Safety Rule Compliance Decision Tool

Not sure if your produce farm needs to comply with the Food Safety Modernization Act Produce Safety Rule? Answer a fewFSMA PSR Exemptions questions online to find out! https://go.rutgers.edu/bxi4dfrf

For more information on produce safety, including the FSMA Produce Safety Rule and buyer required third-party audits visit our Rutgers On-Farm Food Safety webpage.

Filed Under: Commercial Ag Updates, Food Safety
April 14, 2022

Nursery Pest Updates and Scouting next two weeks – initiate Red-headed flea beetle systemics now for Central and Southern NJ

This post covers three topics:

  1. Control and timing of applications for Red-headed flea beetle (RHFB) – Systemic materials should be used now to target emerging adults in May. 
    1. Please refer to this resource for timing and material selection: RHFB timeline using GDD, material selection, print-out ready (click here)
    2. Combination of resources from Danny Lauderdale (NC State), Brian Kunkel (UDel.), Tim Waller (RU)
  2. Seasonal reminders:
    1. Protectant, broad-spectrum ‘cover-sprays’ should be initiated ASAP or as plastic is removed / crops can be accessed
    2. SLF egg masses: We are all in this together should be remembered when it comes to checking loads for SLF.
      1. SLF EGG MASS GUIDE – USE FOR TRAINING (click here to download, hang up for employees)
      2. Refer to this post “Don’t let Spotted Lanternfly Impact Spring Shipping” for additional information 
  3. Pest Scouting for 100-200 Growing Degree-days (approx. next two weeks in Southern and Central NJ). 
    1. Refer to this post “Obtaining your local growing degree-days” for additional information 

Growing degree-days as  4/12/22 (~Next two weeks)

Projected GDD50 accumulation as of 4/13/2022 Note: Growing degree-day values utilize daily average air temperatures with a minimum temperature threshold (a.k.a. ‘base’) of 50F = GDD50 (max. temp. threshold set at 95F). These values are accumulated from a biofix date, such as January or March 1st in the NE USA. Provided GDD50 are scouting ranges and should be truthed.
Region Location Station 13-Apr 1-May 1-Jun
South Upper Deerfield NJ50 116 236 660
Central Howell / Freehold NJ10 114 200 553
North High Point NJ59 35 67 313
Forecast: NOAA NCEP Coupled Forecast System model version 2 (CFSv2) forecast system (3.5 months) (USPEST.ORG)

 

Crop type Common Name Scientific Name GDD Min (50F) GDD Max (95F) Reference Developmental / Target Stage
Conifer Pine engraver (Ips bark beetle) Ips spp. 100 150 4 1st adults active
Conifer Balsam twig aphid Mindarus abietinus 100 150 4 Stem mothers present (control target)
Conifer European pine sawfly Neodiprion sertifer 100 195 4 1st larvae active
Andromeda 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
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
Yews, Rhododendrons, many Black Vine Weevil Otiorhynchus sulcatus 148 400 2 Pupation / Adult emergence
Lilac, ash, privet, many Lilac / Ash Borer Podosesia syringae 148 299 2 Adult flight
Dogwood, many Dogwood Borer Synanthedon scitula 148 700 2 Adult activity
Conifer Hemlock woolly adelgid Adelges tsugae 150 150 RU Eggs and 10% hatch
Conifer Spruce needleminer Endothenia albolineana 150 200 4 1st larvae active
Conifer Spruce spider mite Oligonychus ununguis 150 175 4 1st egg hatch
Conifer Balsam gall midge Paradiplosis tumifex 150 300 4 Adults laying eggs
Witchhazel, River birch Spiny witchhazel gall aphid Hamamelistes spinosus 171 – 6 Control target
Birch Birch Leafminer Fenusa pusilla 175 215 4 1st adults active
Birch Birch leafminer Fenusa pusilla 190 290 RU Larvae (1st generation)
Conifer Spruce spider mite Oligonychus ununguis 190 363 RU Immatures/Adults
Rhododendron Rhododendron gall midge Clinodiplosis rhododendri 192 363 RU Larvae
Honeylocust Honeylocust pod gall midge Dasineura gleditchiae 192 229 RU Larvae
Privet Privet thrips Dendrothrips ornatus 192 618 2 Typical treatment window
Holly *Native holly leafminer Phytomyza ilicicola 192 298 2 Egg hatch
Holly Holly leafminer Phytomyza ilicis 192 290 RU Egg hatch
Willows, Cottonwood, Poplar Imported willow leaf beetle Plagiodera versicolora 192 448 RU Larvae/Adults
Larch Larch sawfly Pristophora erichsonii 192 299 2 Typical treatment window
Andromeda Andromeda lacebug Stephanitis takeyai 192 303 RU Adults
Rhododendron Rhododendron borer Synanthedon rhododendri 192 298 2 Typical treatment window
Conifer Cooley spruce gall adelgid Adelges cooleyi 200 310 4 1st galls visible – Spruce
Spruce Spruce budworm Choristoneura fumiferana 200 300 5 Larvae
Conifer Douglas fir needle midge Contarinia pseudotsugae 200 400 3 Adults emerge from soil
Lilac, ash, privet, many Lilac / Ash Borer Podosesia syringae 200 299 RU Adults – 1st Treatment
References RU Rutgers Cooperative Extension – Landscape IPM Notes
Daily GDD50 =                                                                                                             (Max + Min temp.) / 2 – 50 (min temp. threshold)                             (Simple average growing degree-day, min. 50F, max 95F) 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

Please Download these resources: (The scouting guide is for you to print and keep on hand…these are just updates)

Nursery and Landscape Pest Scouting Guide 2022 PDF (note this contains conifer pests as well)

Conifer Pest Scouting Guide 2022 PDF

Contact if seeing insects at different times: twaller@njaes.rutgers.edu (or call the Cumberland County Extension Office – 856-451-2800)

Filed Under: Landscape, Nursery, & Turf, Nursery, Turf, Uncategorized Tagged With: , , , , , , , , , , ,
April 12, 2022

Pest Counts & Action Thresholds in the Greenhouse

Scouting Methods & Options:

There are essentially three options available when scouting your greenhouse crops for insect/mite pests. 1- No scouting performed with pesticides being applied on a calendar timetable. 2- Simply scouting for pest existence  with pesticides applied when presence is observed. 3- Scouting crop and making pesticide application decisions based on pest counts and action thresholds. The third option is part of an integrated pest management (IPM) approach that has been promoted throughout the green industry the past few decades.

Greenhouse pest populations are measured by trapping or direct plant inspection, and both involve determining pest numbers. Counting pests and using action thresholds requires time and knowledge, but results in less pesticide use, reduced potential for insect resistance, and can improve plant quality. It is important to remember that trapping (e.g., yellow, or blue sticky cards) improves the efficiency when scouting your greenhouse but does not replace the actual inspection of individual crop plants (Fig. 1 & Fig. 2). This is particularly the case when scouting for aphids and mites.

Fig.1. Yellow or blue colored sticky traps are used to capture flying insect pests in the greenhouse. The blue traps attract the western flower thrips more effectively. (Photo Credit: Steven K. Rettke, Rutgers Coop. Ext.)

Fig. 2. The optivisor (3x) at top of photo works best when counting or viewing the insects captured on sticky traps. The other magnifiers shown (5x, 16x, 20x) are used to more closely view pests on crop plants. (Photo Credit: Steven K. Rettke, Rutgers Coop. Ext.)

 

 

 

 

 

 

 

 

 

 

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Filed Under: Landscape, Nursery, & Turf, Nursery, Plant Diagnostic Lab, Vegetable Crops
April 11, 2022

North Jersey Tree Fruit And Vegetable Twilight Meeting II Full Program

North Jersey Fruit and Vegetable Twilight Meeting II

April 19, 2022
4:30 PM-7:30 PM
Alstede Farms, Chester, NJ

4:30 PM – Registration / Light Refreshments

4:45 PM – Apple Fruit Rots: Environment, Infection Timing and Fungicide Efficacy
Norm Lalancette, Specialist in Tree Fruit Pathology, Rutgers NJAES

5:15 PM – Farm Tour of Fruit and Early Season Vegetable Production
Kurt Alstede, Craig Steely, Hector Ruiz, John Ferrante, Alstede Farms

5:30 PM – Tree Fruit Insect and Disease Update
Dean Polk, Statewide Fruit IPM Agent, Rutgers NJAES

5:45 PM – Disease Control Options for Spring Vegetable Crops
Andy Wyenandt, Specialist in Vegetable Pathology, Rutgers NJAES

6:00 PM – Early Season Weed Control Update
Thierry Besancon, Specialist in Weed Science, Rutgers NJAES

6:15 PM – Insect Control for Spring Vegetable Crops
Kris Holmstrom, Vegetable IPM Research Project Coordinator, Rutgers NJAES

6:30 PM – Greenhouse and High Tunnel Considerations for Early Season Vegetable Production
AJ Both, Extension Specialist in Controlled-Environment Engineering, Rutgers NJAES

6:45 PM – Tour of Pesticide Storage and Loading Facility
Kurt Alstede, Craig Steely, Alstede Farms
Patricia Hastings, Extension Pesticide Safety Education Coordinator, Rutgers NJAES

NJ Pesticide Recertification Credits
1 unit CORE, 3 units 1A, 3 units 10, 3 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: Commercial Ag Updates, Fruit, Organic Production, Tree Fruit, Vegetable Crops
April 11, 2022

Pesticide Applicator or Dealer Storage Inventory with Cover Letter Due May 1st to Fire Department

All licensed pesticide applicators, as well as dealers, who store pesticides are required by law to send a copy of their storage inventor(ies) with an explanatory cover letter to the local fire company by May 1st each year. In New Jersey, all licensed pesticide applicators and dealers who store pesticides are required per N.J.A.C. 7:30-9.5 […]
Filed Under: Field, Forage & Livestock, Fruit, Landscape, Nursery, & Turf, Vegetable Crops
April 7, 2022

REMINDER – South Jersey Integrated Vegetable Crop Management Meeting Tonight

Just a quick reminder hoping to see you tonight. In addition to the announced agenda below, newly appointed State Executive Director of USDA’s Farm Service Agency Bob Andrzejczak will be joining us to (re)introduce himself to the farm community.

Integrated Vegetable Crop Management Twilight Meeting

THURSDAY, April 7, 2022

6:30 p.m. – 9:00 p.m.

East Vineland Fire Hall

4931 Landis Ave., Vineland, NJ

across from the Savoy Restaurant

(please park behind the building and enter conference room door in rear)

6:30 pm    Tools for Pesticide Safety & Regulatory Compliance for Growers & Pesticide Handlers

  • Pat Hastings, RCE Pesticide Education Program Coordinator

7:00 pm    Understanding the New FSMA Water Rule

  • Wes Kline, RCE Cumberland

7:20 pm    Cover-crops for Fertility Management

  • Michelle Infante-Casella, RCE Gloucester

7:40 pm    Cover-crops and Other Weed Management Strategies for Plasticulture Crops

  • Thierry Besancon, RCE Specialty Crop Weed Specialist

8:10 pm    Disease Control Options for Spring Vegetable Crops

  • Andy Wyenandt, RCE Vegetable Plant Pathologist

8:40 pm    Pepper Weevil & Early Season Diamond Back Moth Management Options

  • Joe Mahar, Vegetable IPM Coordinator

9:10 pm    COVID-19 and New Roles for Extension Going Forward

  • Rick VanVranken, RCE Atlantic

9:30 pm    Adjourn

Pesticide Recertification Credits 

PP2 (PRIVATE APPLICATOR CATEGORY)     04
CORE (BASIC SAFETY & HANDLING)          01
1A (AGRICULTURAL PLANT)                       04
10 (DEMONSTRATION & RESEARCH)         03

Hope to see you there!

Sincerely,

Richard VanVranken, Agricultural Agent, Atlantic County

Wesley L. Kline, Agricultural Agent, Cumberland County

Michelle Infante-Casella, Agricultural Agent, Gloucester County

Filed Under: Commercial Ag Updates, Vegetable Crops Tagged With: , , , , , , , , , , , , ,