Vegetable Crops Edition
Seasonal updates and alerts on insects, diseases, and weeds impacting vegetable crops. New Jersey Commercial Vegetable Production Recommendations updates between annual publication issues are included.
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EPA Proposes to Cancel All But One Use of Pesticide Acephate to Protect Human Health
Allium leaf miner update: 04/29/24
Allium Leaf Miner (ALM)
As of last week, allium leaf miner (ALM) adults were still being captured on sticky cards placed in chive plantings in Mercer and Hunterdon counties, and in a garlic planting in Morris County. Numbers had declined somewhat from catches the week of 4/15. There is a possibility that damaging levels of ALM adults remain. Once we cease to capture adults, another update will follow.
Growers should consider initiating the control method of their choice at this time, if any allium crops are in the field. Affected crops include chives, scallions, garlic, onions and leeks. Look for neat rows of white spots descending from the upper tips of allium leaves (see photo at left). Initial injury often occurs on the tallest leaves. Under warmer, less breezy conditions, adults may be seen near the tips of leaves (see photo of adult at lower right). Perennial chive beds are often the first, and most heavily infested alliums of the spring season, so this makes chives an ideal crop to confirm ALM adult activity.
Floating row covers, kept on until this flight ends will help minimize access to plants. Insecticide applications targeting adults may be helpful as well, although frequency of applications is uncertain. Spinosyn materials (Radiant, Entrust (OMRI approved)), pyrethroids (Mustang Maxx, Warrior), neonicotinoids (Scorpion, Venom), the diamide Exirel (section 2ee recommendation) and the insect growth regulator Trigard are labeled for miner control.
26th Biennial International Pepper Conference Returns to Northeast, Sept 9-11, 2024
Cornell announces they will be hosting the International Pepper Conference 2024
“Fall in New York’s Finger Lakes Region is the perfect time to visit local waterfalls, revel in colorful foliage, and explore our ripening pepper selection! We are excited to be hosting the 26th Annual International Pepper Conference in Ithaca, NY and are looking forward to showcasing peppers in our region. I’m especially excited about this year’s field day. On Tuesday, September 10, we’ll travel around Central New York, touring Cornell University research plots, visiting Norwich Meadows Farm, and taking in one of Ithaca’s “gorges” waterfalls. I’m looking forward to welcoming all of you to Ithaca and sharing the latest scientific information and pepper breeding projects.
—- Michael Mazourek, Plant Breeding & Genetics, Cornell University
The International Pepper Conference has been held every couple of years since 1973 and is not limited to researchers working on peppers. The event is a great opportunity for farmers, industry and vegetable specialists/agents/researchers to learn about new pepper production and research topics! As we know here in the Garden State, northeastern growers are much more significant producers of bell and specialty peppers than most realize! New Jersey was the last to host in the Northeast in 2008.
NJ Depts of Agriculture & Environmental Protection Allow Controlled Open Burning to Protect Crops
(Trenton) [On April 20, w]ith the state expected to experience cooler spring temperatures, the Department of Environmental Protection has agreed with NJDA Secretary Ed Wengryn’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 Saturday, April 27.
Temperatures are expected to drop to the 30s or below tonight with varying winds through portions of the state. These expected temperatures follow warm temperatures in recent days. Damage from freezing weather now can significantly reduce yields of certain fruits and vegetables that are in the flowering stage.
The DEP and Department of Agriculture are allowing these steps to protect farmers’ livelihoods and to ensure that consumers will be able to enjoy an ample supply of Jersey produce later this year.
The DEP intends to exercise its authority and discretion under the Air Pollution Control Code, N.J.A.C. 7:27, et seq., and other applicable authorities to permit the following procedure for open burning or the use of smudge pots to assist farmers to protect their crops in low temperatures.
Farmers who believe they will need to conduct open burns and/or use smudge pots must provide notice to the DEP’s 24-hour Communications Center at 1-877- WARNDEP (1-877-927-6337).
Notification to DEP does not require the implementation of either technique but ensures proper procedures are followed should they become necessary.
If a farmer does not call DEP in advance but uses either technique, the farmer must notify DEP by 9 a.m. the following day. The farmer will be asked which technique was used.
Farmers must record the incident number provided to them by the Communications Center. The following information is to be provided:
- Name of the individual making the decision to conduct the open burning/use of smudge pots and name of the farm.
- Actual street address of the farm on which either technique will be used (no P.O. Boxes).
- Telephone number of a contact at the farm.
- Predicted temperature (in degrees Fahrenheit) at the agricultural operation when the technique will be used.
- Wind speed anticipated when the technique will be used.
- Predicted hours of open burning and/or use of smudge pots.
- Materials expected to be burned.
- At the time of the initial call to the Communications Center, farmers will be given an email address and incident number.
Within two days, they must submit to DEP via this email address the following information:
- The DEP Communications Center incident number.
- Ambient temperature (in degrees Fahrenheit) at the time the technique was used.
- Actual wind speed at the orchard at the time the technique was used.
- A statement verifying that all restrictions in the open burning or use of smudge pots were followed.
- The New Jersey Department of Environmental Protection 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 for warming as necessary during higher wind conditions. Use of open burning when wind velocity is greater than 5 mph is strictly prohibited, may contribute to wildfire risk, and can carry significant penalties.
- Smudge pots must be fueled only with either kerosene or No. 2 fuel oil.
- Open burning can consist only of either the following materials: clean and untreated scrap lumber, felled trees, clippings pruned from trees and shrubs, hedgerows, or firewood. Absolutely no refuse, trade waste, tires or garbage of any type may be added to the authorized open burning material.
The New Jersey Department of Environmental Protection 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 for warming as necessary during higher wind conditions. Use of open burning when wind velocity is greater than 5 mph is strictly prohibited, may contribute to wildfire risk, and can carry significant penalties.
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To learn more about the New Jersey Department of Agriculture, find us on Facebook at www.facebook.com/NJDeptofAgriculture and www.facebook.com/JerseyFreshOfficial or Twitter @NJDA1 and @JerseyFreshNJDA.