Archives for August 2022

August 15, 2022

2022 Annual Vegetable Twilight Meeting & Research Tour

Wednesday, August 24, 2022, 4:30 pm (meet at the shelter near the parking lot)

Rutgers Agricultural Research & Extension Center

121 Northville Rd., Bridgeton, NJ (Upper Deerfield)

PESTICIDE CREDITS approved for this event:  

1A  (AGRICULTURAL PLANT)                     – 07
10  (DEMONSTRATION & RESEARCH)      – 07
PP2  (PRIVATE APPLICATOR CATEGORY)   – 07

4:30 – Welcome and Intros – Rick VanVranken, Atlantic County Agricultural Agent

5:00 –  8:30 pm Tour of research plots and discussions with Rutgers Extension Specialists

Thierry Besancon, PhD, Extension Weed Specialist for Specialty Crops

  • Cover-Crops for Row Middle Weed Management in Plasticulture Tomato.
  • Cover-Crops for Row Middle Weed Management in Plasticulture Cucumber.
  • Crop Safety of Delayed Preemergence Herbicide Application for Cole Crops (Broccoli and Cabbage)

Andy Wyenandt, PhD,  Specialist in Vegetable Pathology

  • Bacterial Leaf Spot Development in Pepper and Tomato in NJ
  • Copper Resistance Development in Bacterial Leaf Spot
  • Basil Downy Mildew Breeding Program Update
  • Bell and Non-bell Phytophthora Tolerance Trials

Joe Ingerson-Mahar, PhD, Vegetable IPM Coordinator

  • Comparing the response of corn earworm to GMO and non-GMO sweet corn varieties and the resistance to BT corn

 

Filed Under: Commercial Ag Updates, pesticide credits, Vegetable Crops Tagged With: , , , , , , , , , ,
August 15, 2022

Rutgers Private Applicator 2023 Online License Renewal Assistance

The New Jersey Department of Environmental Protection has released an announcement “Pesticide License Renewal Info 2023” to licensed applicators via email. The announcement is posted at https://www.nj.gov/dep/enforcement/docs/Pesticide-License-Renewal-Info-2023.pdf?utm_medium=email&utm_source=govdelivery.  See today’s companion post to the Plant & Pest Advisory entitled “Private Applicators: NJDEP August Mailing of 2023 Invoices & Recertification Credit Status“. All Private Applicators are now […]
Filed Under: Field, Forage & Livestock, Fruit, Landscape, Nursery, & Turf, Vegetable Crops Tagged With:
August 15, 2022

Private Applicators: NJDEP August Mailing of 2023 Invoices & Recertification Credit Status

On August 11, 2022,  the New Jersey Department of Environmental Protection released an email announcement entitled “NJDEP Pesticide Licensing & Registrations – 2023 Pesticide License Renewal Information.” If you cannot locate it in your email, the entire notice is posted for you at Pesticide-License-Renewal-Info-2023. Their notice explains that the NJDEP will be sending paper license […]
Filed Under: Field, Forage & Livestock, Fruit, Landscape, Nursery, & Turf, Vegetable Crops Tagged With:
August 12, 2022

Vegetable IPM Update 8/12/22 -CEW Status

Attention:  There have been significant increases in CEW moth catches in pheromone traps in parts of the state during the past 2 days.  At this time, these increases are largely in southwestern NJ, although elevated catches have occurred as far north as Warren County.

Noteworthy Sweet Corn catches include:

Eldora (Cape May)- 187/night

Green Creek (Cape May) – 183/night

Jones Island (Cumberland)- 133/night

Allamuchy (Warren) – 64/night

Peppers:

E. Vineland – 33/night

Blacklight and pheromone networks are indicating a 3-day silk spray schedule in much of the state.  All growers in south and central counties should be on 3-day silk spray schedules for sweet corn.  Cape May, Cumberland, Atlantic and Salem County growers are especially at risk of infestation if strict spray schedules are not observed.  Growers in the northern counties should be on 3-4 day schedules, as recommended by local traps.  The current population continues to be a serious economic threat.  It is important to use effective materials to manage this pest on silking corn.  Insecticides in the IRAC 28 class (Coragen, Besiege, Exirel) and IRAC 5 (Radiant, Blackhawk, Entrust (OMRI approved)) remain among the most useful insecticides against CEW.

Silking Spray Schedules*:
South – 3 days

Central – 3  days

North – 3-4 days

*These recommendations are based on regional catches.  Adhere to tighter spray schedules if indicated by local trap catches.  Synthetic pyrethroids alone should NOT be used for corn earworm (CEW) protection on silking corn, or for fall armyworm (FAW) management at any stage.  Control with these materials is very inconsistent.

 

 

Filed Under: Organic Production, Vegetable Crops
August 12, 2022

Managing Cranberry Toad Bugs

Populations of the cranberry toad bug, Phylloscelis rubra (Figure 1), have increased in the last week in some beds. In a recent study, we showed that even relatively low densities of this insect can cause significant injury to cranberries (Rodriguez-Saona et al. 2020. Characterizing the Feeding Injury Caused by Phylloscelis rubra (Hemiptera: Dictyopharidae) to Cranberries, Journal of Insect Science, 20 (6), 37, https://doi.org/10.1093/jisesa/ieaa143). Thus, monitoring for this insect from the end of July through mid-August is critical.

Figure 1. Cranberry toad bug

Life cycle. Cranberry toad bugs feed only on cranberries. This insect has a single generation per year (Figure 2). It overwinters as eggs. The nymphs appear by the end of June through early September, and the adults from end of July through October (harvest). Eggs are laid from end of August through October.

Damage. Feeding damage can be noticed in two stages. 1st-stage feeding damage on vines causes closing in (towards the branch) of the leaves on the new growth. 2nd-stage feeding causes changed in color (reddish to brown) of new growth. The damage can be seen from July until harvest. This damage will cause dying of the branch and the berries to shrivel up (Figure 3). Heavy infestation will result in dwarfed berries.

Management. To determine infestation, lightly sweep problematic beds (bugs should be easy to catch in sweep nets as they are very active). Currently there is no threshold established for this pest. Thus, insecticide applications should be based on the relative number of bugs per sweep compared with other sites and previous history of infestation. If needed, growers can use the following control options: Sevin 4F (broad-spectrum carbamate), Diazinon, Imidan 70W (broad-spectrum organophosphates), and Actara or Assail 30SG (neonicotinoid insecticides, effective against piercing-sucking insects). If infestation is high, treatments should be applied now (mid-August) for best control.

Figure 3. Cranberry toad bug injury

Figure 2. Cranberry toad bug phenology

Filed Under: Cranberry, Fruit
August 10, 2022

Vegetable IPM Update 08/10/22

Sweet Corn

European corn borer (ECB) moth catches remain stable at low levels throughout the state.   ECB population maps will resume if second flight catches rise to high enough numbers.  Only occasional feeding in sweet corn has been detected by field personnel.

The highest nightly trap catches of ECB for the week ending 08/10/22 are as follows:

Blairstown   1 Downer   1 Milltown   1
Califon   1 Farmingdale   1 New Egypt   1
Cinnaminson   1 long Valley   1 Oldwick   1
Dayton   1 Matawan   1 Sergeantsville   1

[Read more…]

Filed Under: Organic Production, Vegetable Crops