Fruit Crops Edition - Cranberry Section

Seasonal updates on diseases, insects, weeds impacting small fruit (blueberry, cranberry, and wine grape). Fruit Pest Alerts are also available via this category feed.
 
Subscription is through the general Fruit feed available via EMAIL and RSS.

ATTENTION: Department of Agriculture Allows Controlled Open Burns to Protect Crops

With the state continuing to experience colder spring temperatures, the Department of Environmental Protection has agreed with NJDA Secretary Douglas Fisher’s request to allow farmers to do controlled open burning or use specialized torches known as smudge pots to protect flowering crops from damage beginning today, April 20, through Wednesday, May 4.

Damage from freezing weather now can significantly reduce yields of certain fruits and vegetables that are in the flowering stage.

 

Please see the link below for more information:

NJDA Press Release 4/20/2022

 

Wine Grape Twilight – I

When: May 4 (Wed) @ 4 PM

Where: Tomasello Winery: 225 N White Horse Pike, Hammonton, NJ 08037

Frank Salek Memorial Lecture, Sponsored by the Outer Coastal Plain Vineyard Association. Dennis Rak, owner of the Double A Vineyard Nursery will talk on ‘Grapevine Grafting: Fundamentals of Why and How’

Pesticide Recertification Credits: CORE (1 credit), PP2 (5 credit), 1 A (5 credit) [Read more…]

Insect Management Options Following the Loss of Chlorpyrifos

This article was written by Ocean Spray, Lindsay Wells-Hansen (Sr. Agricultural Scientist) and Dave Jones (Agricultural Scientist), who were kind enough to share the information with all New Jersey growers. Independent growers should consult their handlers for PHI restrictions and any other limitations before making purchases or applications.

Beginning in 2022, the use of chlorpyrifos (e.g., Lorsban) is no longer allowed in any capacity for either EU or non-EU Qualified fruit. This includes existing stock – NO chlorpyrifos may be used going forward, even if a grower has already acquired the material in a previous season. While the loss of this broad-spectrum material is a challenge, we have several efficacious materials that can be used as a chlorpyrifos replacement for pre-bloom insect control. The list below includes some of these materials and highlights which insect pests can be targeted with each insecticide. We’ll focus on pre-bloom management of two pest groups: (1) Lepidoptera pests (Leps) which are caterpillar species including Sparganothis, fireworm species, spanworms, cutworms, etc. and (2) blunt-nosed leafhoppers (BNLH).

  • Acephate (e.g., Orthene). This material will control both BNLH and Leps. There is historical concern among some growers that acephate used prior to bloom deters pollinator activity and reduces yield. This was investigated by the WI Ag Science team in 1990/1991 and again in 2020/2021 and no significant relationship between pre-bloom acephate and pollinator activity/yield was ever observed.
  • Spinetoram (e.g., Delegate). Spinetoram is a strong material for managing Leps but is NOT effective for controlling BNLH. This material is a valuable rotational material because it is specific in its efficacy, thus preserving beneficial insects.
  • Sulfoxaflor (e.g., Closer). This material is ONLY useful for the control of BNLH. It will NOT work against Leps, but it can be applied in conjunction with a lep-specific chemistry (like Delegate) if control of both pest groups is needed at the same time.
  • Fenpropathrin (e.g., Danitol). Currently ONLY available for use on non-EU Qualified fruit. This pyrethroid insecticide is relatively new to the industry. The pyrethroid class is relatively broad-spectrum and should provide control of both BNLH and Leps.
  • Indoxacarb (e.g., Avaunt). This material should work well on most Leps, but there is some evidence that it provides moderate to poor efficacy against Sparganothis. Its efficacy against BNLH is unknown, but it is not listed as a strong material for leafhoppers in other crops.
  • Methoxyfenozide (e.g., Intrepid), Tebufenozide (e.g., Confirm), and Novaluron (e.g., Rimon). These three materials are insect growth regulators (IGR’s) that ONLY target Leps. None of these materials will provide control of BNLH. Intrepid and Confirm are both minimally toxic to bees and can be applied during bloom, but Rimon should NOT be applied during or immediately prior to the bloom window.
  • Cyclaniliprole (e.g., Verdepryn). Currently ONLY available for use on non-EU Qualified fruit. Verdepryn is another relatively new material to the industry. It is a diamide, which is the same class of insecticide as Altacor and Exirel. The diamides generally provide strong control of Leps. The efficacy of Verdepryn against BNLH is not currently known.
  • Bifenthrin (e.g., Fanfare/Capture). This pyrethroid insecticide is newly available to the cranberry industry in 2022. A 120-day PHI restriction has been placed on the material for EU-Qualified fruit this year. The PHI restriction for non-EU Qualified Fruit is 45 days. This material is also restricted to a single application per season. It will provide control of both BNLH and Leps.

Growers are reminded that the 2022 OSC Code Book should be consulted prior to the application of ANY of these materials. Application timing is particularly critical with the softer chemistries on this list; weekly scouting must be incorporated in order to deploy them effectively. Many of these materials are hard on bees – always consult the label for bee health hazards prior to application.

South Jersey Tree Fruit Twilight Meeting – II

When: April 12 (Tuesday) @ 4 – 7 pm

Where: Summit City Orchards: 500 University Blvd. Glassboro, NJ 08028

Approved Pesticide credits: 1A, PP2, 10 (5 credits each)

Schedule

Field visit (in a bus) to a peach block. Field Demonstration and discussion on different rootstocks (Daniel Ward and Lewis DeEugenio), Comments on Orchard Soil Fumigation (Lewis DeEugenio), Observations of bud development in different peach varieties during frost nights (Hemant Gohil), and Field Observations from the IPM Program (Dave Schmitt).

Return to above address in the bus. Light fare will be served.

Indoor presentations: Fundamentals of Tree Fruit Nutrition and Orchard Soil Fertility (Joseph Heckman), Organic Weed Management in the Orchard (Thierry Besancon), Insect-pests Updates in Orchards (Anne Nielsen), Updates on Early Season Disease Control (Norman Lalancette), Coming Changes in the Structure of Fruit IPM Programming (Dean Polk)

7:00 pm  Pesticide re-certification credits application and Adjourn

Light fare will be provided. Please call Joan Medany jmedany@co.gloucester.nj.us or call 856-224-8030 if you are planning to attend. If an additional assistance is needed, please contact Hemant Gohil (Program Organizer) at 856-224-8029 prior to the meeting.


 

Weed Science Webinar Series

Weed Science Webinar Series

USDA – ARS and the Weed Science Society of America (WSSA) are co-hosting 10 webinars on weed science and research. Beginning April 5, presentations will be given by ARS weed science research experts.

The webinars will occur every Tuesday from 2-3p.m. Eastern Time (ET) and include an interactive Q&A session.

Register Here Today!

Two people conducting research in a field

Weed Science Webinar Series Schedule

April 5
ARS Weed Science: Past, Present, and Future: Steve Duke, Principal Scientist at the National Center for Natural Products Research at the University of Mississippi, Steve Young, National Program Leader – Weeds and Invasive Pests, WSSA Representatives and ARS Administrators

Meeting Information:

Zoom Meeting Link

Webinar ID: 831 3320 1055

Passcode: 825921

Please download and import the following iCalendar (.ics) files to your calendar system.

Theme I: Tactics

April 12
Integrated Weed Management in Cropping Systems: Marty Williams, Ecologist at the Global Change and Photosynthesis Research Unit in Urbana, IL

April 19
Non-Crop Systems: Advancements in Weed Biocontrol Tools: Melissa Smith, Research Ecologist at the Invasive Plant Research Laboratory in Fort Lauderdale, FL

April 26
New Technology for Weed Identification and Control: Steven Mirsky, Research Ecologist at the Sustainable Agricultural Systems Laboratory in Beltsville, MD

Theme II: Mechanisms

May 3
Role of Plant Physiology in Weed-Crop Competition: Dave Horvath, Research Plant Physiologist at the Sunflower and Plant Biology Research Unit in Fargo, ND

May 10
Molecular Basis for Controlling Invasive Plants: Matt Tancos, Research Plant Pathologist at the Foreign Disease-Weed Science Research Unit in Fort Detrick, MD

May 17
Addressing Herbicide Resistance with Alternative Chemistries: Scott Baerson, Molecular Biologist at the Natural Products Utilization Research Unit in Oxford, MS

Theme III: Impacts

May 24
Spread and Distribution of Invasive Plants: John Madsen, Research Biologist at the Invasive Species and Pollinator Health Unit in Albany, CA

May 31
Climate Change Effects on Weeds and Management: Dana Blumenthal, Ecologist at the Rangeland Resources & Systems Research Unit in Fort Collins, CO

June 7
Restoration for Managing Invasive Plants: Roger Sheley, Ecologist at the Range and Meadow Forage Management Research Unit in Burns, OR

NJ Department of Agriculture Issues Burn Permit for Frost Protection – Thru April 5

New Jersey Department of Agriculture has issued a notice concerning open burning due to colder spring overnight temperatures presently forecasted for areas of New Jersey from March 22 through April 5th, 2022, which could adversely affect fruit, vegetable, and floriculture crops in bloom or near bloom around the state. For details read below the links.

Note: The NJDEP and New Jersey Forest Fire Service caution all farmers and agriculture businesses with respect to the use of open burning in high wind velocity conditions. Please take note that farmers are encouraged to utilize smudge pots is warming as necessary during higher wind conditions. Use of open burning when wind velocity is greater than 5mph is strictly prohibited, may contribute to wildfire risk, and can carry significant penalties. [Read more…]