Rutgers University | New Jersey Agricultural Experiment Station | Pesticide User Responsibility

Search Results for: allium leaf

May 5, 2021

IPM Update 5/05/21

Sweet Corn

IPM Program personnel are currently finishing deployment of the black light trap network in New Jersey.  At present, we are approximately 80% operational and will begin to monitor traps by the end of this week.  We do not anticipate corn earworm (CEW) or  European corn borer (ECB) moths for some time yet, but as numbers increase, look for population maps of ECB, CEW, brown marmorated stink bug (BMSB) and CEW catches from pheromone traps in this weekly publication.  The resulting full-state maps will include interpretive information.

[Read more…]

Filed Under: Organic Production, Vegetable Crops
April 19, 2021

What to Look for At Bloom: Cankers of Stone fruit.

Bacterial Spot is a key pest of Peach, Nectarine and Plum and in some years like 2019 can cause significant losses. It is caused by the bacterium Xanthomonas arbicola pv. pruni. Bacterial spot cankers that cause tip dieback (commonly called Black Tip) are often difficult to distinguish from cankers caused by other peach diseases. Other cankers that may appear during bloom are caused by the blossom blight phase of brown rot, and constriction canker. Black tip usually appears during or just after bloom. Typical symptoms are a gradual blackening of the tip with dead tissue moving down the twig and is often observed on highly susceptible cultivars (Fig. 1). Tip die back may also occur from abiotic factors such as frost. Tip die back from frost is often accompanied by blind wood usually 6-8 inches below the tip where leaves and flowers have fallen off after being killed by a freeze.

Scared onion

Fig. 1 Tip die back likely bacterial spot or spring frost.

In some cases the twig may appear healthy and a shoot begins growing from the tip only to die back after leafing out and flowering. This is often a symptom of late winter/early spring infections of constriction canker. Many times a bud that was infected in the fall and never leafed out may be found just below the new shoot that is dying. This usually a good clue that constriction canker is the cause. These symptoms may be more prevalent in old trees that have a history of the disease (Fig. 2).

Allium Leaf Miner

Fig. 2 Tip die back possibly caused by constriction canker.

Tip cankers such as these may be accompanied by cankers on flower buds lower down the on the twig typically associated with blossom blight or constriction canker, or they may appear alone. Spring cankers from bacterial spot that form around flower buds are less commonly seen in our region. In cases like this it is difficult to diagnose the disease early on, especially where symptoms are randomly found at low levels or are mixed in appearance. The only thing that can be done is to note the trouble blocks and watch to see what develops. Blossom blight and constriction canker will eventually develop unique symptoms. Bacterial spot lesions will eventually show on the leaves. If you see black tip cankers forming during bloom its not a bad idea to assume its bacterial spot and include copper or oxytetracycline with your blossom blight sprays.

 

Filed Under: Tree Fruit Tagged With: , , ,
February 22, 2021

2021 NJ Ag/VGANJ Convention Virtual Educational Sessions – Tues

Day 1 is in the books. Tomorrow we start again. Please join in via the following links.

Access for all morning sessions begins at 9am Tues Feb 23 here:  https://go.rutgers.edu/iexg7ly5

Like Monday, once you’ve logged in you will be directed to ‘breakout rooms’ for each of the morning sessions. While you’re waiting please listen to a few welcoming remarks from our Interim Executive Dean Dr. Laura Lawson, Director of Rutgers Cooperative Extension Brian Schilling, NJDA Secretary Douglas Fisher, and Vegetable Growers Association president John Banscher, as well as some instructions and housekeeping rules. The program sessions will begin at 9:15am.

All links are also available for every session at vganj.com/schedule or the direct link to the agenda page is https://go.rutgers.edu/yw2aminv. NOTE that the morning sessions are all through the same link, but afternoon sessions each have a unique Zoom link that will be seen directly next to the agenda for that session.

If neither of those options work, here is the agenda and links for Tueday’s sessions:

2021 NJ Ag/VGANJ Virtual Convention – Educational Sessions Agenda
Tues Feb 23, 2021 – 9:15am-11:45am
Access ALL MORNING sessions HERE

https://go.rutgers.edu/iexg7ly5

Organic Production
9:15-9:30am-Welcome & Intro
9:30-10:00am-Soil Health & Organic Sweetpotato Production
10:00-10:30am-Managing Allium Leaf Miner for Organic Onions
10:30-10:45am-What’s New from Industry/Break
10:45-11:15am-Satisfying the Sulfur Needs of Crops
11:15-11:45am-Balancing Safety and Nutrition in Organic Foods

New Orchard Establishment I
9:15-9:30am-Welcome & Intro
9:30-10:00am-Overview of Resources Available to New Tree Fruit Growers in New Jersey
10:00-10:30am-Orchard Site Selection and Pre-Plant Preparation
10:30-10:45am-Web Soil Survey – An Efficient Tool to Understand Native Properties of the Soil
10:45-11:15am-Orchard Integrated Pest Management (IPM) Basics
11:15-11:45am-Orchard Management in the Early Years – Principles & Practices

Hemp
9:15-9:30am-Welcome & Intro
9:30-10:00am-Rutgers First Hemp Trials – Observations & Future Direction
10:00-10:30am-Marketing Considerations for Industrial Hemp Production in NJ
10:30-10:50am-Laboratory Services for the Hemp Industry in New Jersey
10:50-11:15am-Hemp Diseases in NJ – What We Know
11:15-11:45am-Hemp Production in NJ – Challenges & Opportunities (Panel Discussion)

2021 NJ Ag/VGANJ Virtual Convention – Educational Sessions Agenda
Tues Feb 23, 2021 – 12:00pm-1:00pm
Access AFTERNOON sessions individually
Pesticide credit sessions require logging in within 10 minutes of start and remaining through the entire session
to be eligible for credits.
Pesticide Regulatory Review for Pesticide Applicators, Businesses,
and Agricultural Employers

https://go.rutgers.edu/cl0zmui7
(1 hour for 2 CORE credits)
Pat Hastings
A thorough review of regulatory requirements for pesticide applicator certification, recertification, and licensing
in New Jersey, including administrative changes to license renewal processes.

Tues Feb 23, 2021 – 1:00pm-3:45pm

Weed Control
https://go.rutgers.edu/p4yk2e17
(pesticide recertification credits: 4 Cat 1A; 4 Cat 10; 4 PP2)
1:15-1:30pm-Welcome & Intro
1:30-2:00pm-Weed Management Update for Row crops
2:00-2:30pm-Electrical Weeders & Potential Use in Specialty Crops
2:30-2:45pm-What’s New from Industry/Break
2:45-3:15pm-Taking Advantage of Plant Weaknesses for Improved Weed Control
3:15-3:45pm-Weed Management Update for Vine Crops

New Orchard Establishment II
https://go.rutgers.edu/iexg7ly5
1:15-1:30pm-Welcome & Intro
1:30-2:00pm-Panel Discussion-Growers’ Perspectives on Delving into Tree Fruit Production
2:00-2:30pm-Organic Apple Production – Is it Feasible in NJ?
2:30-2:45pm-What’s New from Industry/Break
2:45-3:15pm-Economics of Tree Fruit Production
3:15pm-Q&A/Adjourn

Specialty Crops
https://go.rutgers.edu/rxr924oy
(pesticide recertification credits: 1 CORE)
1:15-1:30pm-Welcome & Intro
1:30-2:00pm-Using Demographic Information to Identify Specialty Crop Markets
2:00-2:30pm-African Marigolds for Fall Markets
2:30-2:45pm-What’s New from Industry/Break
2:45-3:15pm-New Crops – RU Hot Peppers & More
3:15-3:45pm-Pesticide Safety & Regulatory Update for 2021

Tues Feb 23, 2021 – 4:00pm-6:00pm
NJ Dept Health
Training Required for Farmers/Market Managers

https://go.rutgers.edu/am5l29pm

Filed Under: Commercial Ag Updates, Field, Forage & Livestock, Food Safety, Fruit, Landscape, Nursery, & Turf, Vegetable Crops Tagged With: , , , , , , , , , ,
October 7, 2020

Vegetable IPM Update 10/07/20

Note:  This will be the final regular edition of the Vegetable IPM Update for 2020.  We will post alerts should special pest situations arise.

Sweet Corn

Corn earworm (CEW) moth captures continue to decline, although with temporary increases on warm nights.    Growers should consider this pest to still be at moderate population levels in the state, with higher risk during stretches of warmer nights.   The current population poses a threat to silking corn.  Blue areas on this map (see map at left)   represent a 4-5-day spray schedule.  The low catches in the southern county blacklight traps are contradicted somewhat by the pheromone trap network.   For further information on CEW activity, see pheromone trap information below.

 

The highest nightly trap catches of CEW in black light traps for the week ending 10/07/20 are as follows:

Crosswicks   3 Califon   1 Green Creek   1
Hackettstown   2 Clinton   1 Milford   1
Sergeantsville   2 Eldora   1 Milltown   1
Bellemeade   1 Georgetown   1 Oldwick   1

[Read more…]

Filed Under: Organic Production, Vegetable Crops
September 30, 2020

Vegetable IPM Update 9/30/20

Note:  Next week (10/07/20) will be the final regular edition of the Vegetable IPM Update for 2020.  We will post alerts should special pest situations arise.

Sweet Corn

Corn earworm (CEW) moth captures continue to decline, although with temporary increases on warm nights.    Growers should consider this pest to still be at moderate population levels in the state, with higher risk during stretches of warmer nights.   The current population poses a significant risk to silking corn.  Green areas on this map (see map at left)   represent a 3-day spray schedule.  However, night temperatures in the 40 to low 50 F range, may permit the extension of that spray interval by a day.  For further information on CEW activity, see pheromone trap information below.

 

The highest nightly trap catches of CEW in black light traps for the week ending 9/30/20 are as follows:

Hackettstown   3 Eldora   2 Matawan   1
Allamuchy   2 Sergeantsville   2 Medford   1
Bellemeade   2 Califon   1 Oldwick   1
Clinton   2 Downer   1 South Branch   1

[Read more…]

Filed Under: Organic Production, Vegetable Crops
September 23, 2020

Vegetable IPM Update 9/23/20

Sweet Corn

 

Corn earworm (CEW) moth captures have declined dramatically with cold night temperatures.  As nights warm again toward the weekend, we may see some recovery in adult activity.  Growers should consider this pest to still be at moderately high population levels in the state unless warmer nights indicate that the threat has diminished.     The current population poses a significant risk to silking corn.  Green areas on this map (see map at left)   represent a 3-day spray schedule.  However, night temperatures in the 40 to low 50 F range, may permit the extension of that spray interval by a day.  For further information on CEW activity, see pheromone trap information below.

 

The highest nightly trap catches of CEW in black light traps for the week ending 9/23/20 are as follows:

Long Valley   8 Morristown   2 Downer   1
Hackettstown   3 New Egypt   2 Elm   1
Denville   2 Allamuchy   1 Old Bridge   1
Farmingdale   2 Cedarville   1 Tabernacle   1

[Read more…]

Filed Under: Organic Production, Vegetable Crops