Posts Tagged ‘18:1’

WCU Volume 18, Issue 1 — March 5, 2010

Thursday, March 4th, 2010

PDF Version of WCU 18:1 – March 5, 2010

In this issue:

From the Editor: Subscription Information for the 2010 WCU

New Web Resources for the Vegetable and Fruit Industries in Delaware
Pea Planting Season
FDA is Seeking Input Before Developing New Produce Food Safety Rules
Update on Alternatives if Fall Windbreaks Were Not Established for Spring-Planted Vegetables
Pea Herbicides

Peach Pruning Best in March-April
Critical Temperatures for Strawberry Buds and Blossoms and Freeze Protection

Agronomic Crops
Small Grain Weed Control
Grain Marketing Highlights

Insecticide Updates
USDA Initiative Extends Deadline to Delaware Organic Producers

Upcoming Produce Food Safety GAP/GHP Certification Sessions
Local Farmers Wanted for Western Sussex Farmer’s Market
Invitation to Join the Fruit and Vegetable Growers Association of Delaware
New Castle County Agronomic Grower Meeting and 3rd Annual Dinner


New Castle County Agronomic Grower Meeting and 3rd Annual Dinner

Thursday, March 4th, 2010

Tuesday, April 6, 2010     5:30 – 9:00 p.m.
Blackbird Community Center
120 Blackbird Forest Rd.
Townsend, DE 19734

This session will gear you up for the season ahead with the latest in pest pressures and control, variety trial updates and agronomic planning for the year. We’ll be sure to cover nutrient management topics, as well. A detailed agenda is available online.

This meeting is free and everyone interested in attending is welcome.

There is no fee, but registration by April 2 is required. To register, request more information or if you require special needs assistance for this meeting, please call our office in advance at (302) 831-2506. 

Invitation to Join the Fruit and Vegetable Growers Association of Delaware

Thursday, March 4th, 2010

As the new Extension Vegetable and Fruit Specialist for the University of Delaware, I encourage you to consider joining the Fruit and Vegetable Growers Association of Delaware. I have just developed a new website for the group.

Take a look at:

You may join by following the instructions on the membership page at the website

We welcome growers, farm owners, farm employees, farm family members and spouses, market masters, market owners and operators, restaurant owners, produce buyers, suppliers, consultants, industry representatives, agency representatives, university representatives, and all other supporters of our fruit and vegetable growers to become members.

Member benefits include:

• A member farm page or links to farm websites on the new web page

• Newsletter and weblog, Twitter page, and Facebook page (new in 2010)

• Winter educational meetings and educational programs throughout the year.

• Promotional materials for use by member farms (such as recipes)

• Promotion of the industry and farms at events throughout the state.

• Voice in legislative activities and input into regulations affecting the industry.

• Programs that can help produce businesses such as “Farm to School”

• Training programs such as Produce Food Safety

and much more…

Members of the Fruit and Vegetable Growers Association of Delaware are very diverse – from market gardeners selling at nearby farmers markets to grower-shippers who supply supermarkets throughout the east; from farms offering Community Supported Agriculture subscriptions to nearby families to processing vegetable growers providing regional freezing and canning plants with tons of raw product that will be sold throughout the country.

Local Farmers Wanted for Western Sussex Farmer’s Market

Thursday, March 4th, 2010

Saturdays 8:30 a.m. to Noon
July 3 through August 28
The Boys and Girls Club of Western Sussex
310 Virginia Ave.
Seaford, DE 19973

Needed: Produce, cheese, eggs, meats, fruit, nuts, bread & baked goods, jellies, herbal products, flowers, etc.

Easy access for vendor set-up!

Call (302) 629-2686 for more information.

Upcoming Produce Food Safety GAP/GHP Certification Sessions

Thursday, March 4th, 2010

All produce growers who did not attend voluntary produce food safety (GAP/GHP) training sessions in 2009 are encouraged to do so in 2010. This training program is offered by the University of Delaware Cooperative Extension, and the certificate is issued by the Delaware Department of Agriculture. Trainings are also sponsored by the Fruit and Vegetable Growers Association of Delaware. This certification program satisfies wholesale buyer requirements that growers attend GAP/GHP training. Smaller growers that do not market wholesale are also encouraged to be certified and learn about best ways to keep produce safe from food borne pathogens.

Growers that do limited wholesale and mostly direct market will only need to do 3 hours of training.

Growers that do significant wholesale must attend 6 hours of training to be certified.

Remaining Certification Sessions in 2010:


Small growers (limited wholesale): Certification session at the Profiting from a Few Acres Conference (3 hour training), will be rescheduled for fall (February conference was canceled because of snow).

Contact Gordon Johnson (302) 545-2397 for more information



Wholesale growers:
Session 1 – March 11, 2010, 6-9 p.m.
Session 2 – March 18, 2010, 6-9 p.m.

Both sessions are at the University of Delaware, Carvel Research and Education Center, 16483 County Seat Highway, Georgetown, DE 19947.

Call (302) 856-7303 to register. Contact Tracy Wootten or Cory Whaley for more information.


All growers:
March 9, 2010 – 9 a.m. – noon, with an afternoon session 1:00 – 2:30 p.m. geared toward farmers’ markets for those who are interested.

Wholesale growers:
Second session to complete certification – March 16, 2010, 9 a.m. – noon

Sessions at the New Castle County Extension Office, 461 Wyoming Road, Newark, DE , 19716, Phone (302) 831-2506 to register.

Contact Anna Stoops for more information.

USDA Initiative Extends Deadline to Delaware Organic Producers

Thursday, March 4th, 2010

The USDA Natural Resources Conservation Service (NRCS) has extended the timeline to apply for a special Organic Initiative, available through the agency’s Environmental Quality Incentives Program (EQIP). Organic producers and those transitioning to organic now have until March 12, 2010, to apply for the current round of funding consideration during fiscal year 2010.

Additional information on this initiative is available here: 
or contact one of the Delaware NRCS Offices:

Sussex County: (302) 856-3990, ext 3
Kent County: (302) 741-2600, ext. 3
New Castle County: (302) 832-3100, ext. 3

Insecticide Updates

Thursday, March 4th, 2010

Joanne Whalen, Extension IPM Specialist;

The following are a few new insecticide registrations as well as changes with labeled products that occurred since the last newsletter of 2009. As always, be sure to check the label for labeled crops, labeled crops within a crop grouping, use rates and restrictions. Federal labels can be found at In addition, you should also check the Delaware Department of Agriculture’s website to be sure these materials are labeled in Delaware (to use a material it must have both a state and federal label).

Baythroid XL (beta cyfluthrin) – A new supplemental label now exits and the following revisions and additions to the label include: revised buffer zone requirements, revised spray drift requirements, revised maximum usage chart , increased use rate on alfalfa, new use on cereal grain, and additional pests on grass

Belay (clothianidin) – This label recently expanded to include control of sucking and chewing insects infesting cotton, cranberry, fig, grape, pome fruit, pomegranate, soybean, tuberous and corm vegetables (includes sweet potatoes) and tree nuts ( More vegetable registrations are expected this spring – we will let you know when registrations are received.

Coragen (chlorantraniliprole) – A label expansion occurred at the end of January 2010. Crops that have been added that are important to Delaware include corn (field and sweet), grass (forage, fodder and hay), a number of crops in the herb subgroup, snap beans, lima beans, field and garden peas, non-grass animal feeds, tuberous and corm vegetables. Please refer to the following link for use rates and the full list of crops included (

Furadan (applies to all crops): “Effective December 31, 2009, all crop tolerances for carbofuran were revoked by the United States Environmental Protection Agency. This action by EPA effectively stops the use of Furadan on all food crops. As a result of the revocation, the Delaware Department of Agriculture has also cancelled all Special Local Needs labels for all Furadan products labeled in Delaware. Contact your pesticide distributor for assistance with the return or disposal of the any existing stocks. The Department understands that unopened containers may be returned to the pesticide distributors and that open container should be disposed of at local pesticide disposal days. FMC is accepting inventory as follows:

● Full and partially full 15 & 110 gallon U-Turns®

● Unopened 2×2.5 gallon cases in original FMC packaging

Delaware farmers are permitted to dispose of pesticides during Delaware Solid Waste Authority Household Hazardous Waste collection days. DSWA has requested that you contact the DSWA’s Citizen Response Line at 1-800-404-7080 prior to delivery of the pesticides for disposal to make sure DSWA can handle the quantity being disposed of. FMC can be contacted for specific instruction for product return at 1-800-231-5808.” Information provided by Dave Pyne at Delaware Department of Agriculture (302-698-4500).

Inovate – Soybean Seed Treatment – This new soybean seed treatment is now labeled and approved for use in Delaware. It includes the insecticide, NipsIt (clothianidin) and Rancona Xxtra (ipconazole and metalaxyl).

Regent: The following correspondence regarding the use of Regent was received from BASF (the manufacturer of Regent) in February 2010: “On February 3, 2010, the EPA posted a Federal Register notice advising of its decision to allow the expiration of conditional registrations of select fipronil-based products, specifically REGENT 4SC for in-furrow corn application. The EPA felt a number of viable alternatives exist for treating corn furrows for root worm control. Specifically,
(a) REGENT 4SC remains registered for use in potatoes. However, the conditional registration for the commercial product for in-furrow corn application has been allowed to expire effective November 15, 2009.
(b) BASF may manufacture REGENT 4SC with the label bearing both corn in-furrow and potato until March 31, 2010, and after which time it will be labeled for use on potatoes only in the U.S. marketplace (except NY where it never had a potato use).
(c) BASF may sell REGENT 4SC for corn in-furrow use through May 15, 2011. Distributors and retailers can sell, and growers can use, REGENT 4SC for corn in-furrow applications until stocks are depleted.

(d) Additionally, the EPA changed registrations on REGENT TS and REGENT 500TS for corn seed treatment, to grant unconditional registration for treatment of seeds for export only. No sales of fipronil treated seeds will be allowed within the U.S. without an EPA-approved product stewardship plan. BASF will work with seed partners to develop a stewardship plan that will be deemed mutually acceptable by both BASF and the EPA to allow fipronil-based solutions for the future protection of premium seeds in the U.S.”

Grain Marketing Highlights

Thursday, March 4th, 2010

Carl German, Extension Crops Marketing Specialist; 

Commodity Markets Struggle to Find Direction
Next week’s release of the March 10th Crop Production and USDA Supply/Demand reports should shed light on demand revisions for ‘09/‘10 marketing year corn, soybeans, and wheat. Prospective Plantings for the 2010 domestic cropping season will not be reported until March 31. Grain Stocks in all positions will also be released on that date. Based upon Monday’s close (March 1), new crop corn, soybean, and SRW wheat prices are only slightly better than they were bidding two weeks ago, moving from an initial oversold to an overbought situation. Dec ‘10 corn futures closing at $4.06 on Monday had gained 11 cents per bushel; Nov ‘10 soybeans at $9.42 gained 11 cents per bushel; while SRW wheat at $5.16 had gained only 4 cents per bushel since February 19.

Weekly Export Inspections
Weekly inspections, reported on March 1, should be viewed as neutral to bearish for corn. The reported 38.9 million bushels was below the 46.1 million bushels needed this week to be on pace with USDA’s projection of 2 billion bushels for the ‘09-‘10 marketing year.

Soybean inspections of 40.1 million bushels should be viewed as bullish as the market needed 12.6 million bushels this week to be on pace with USDA’s projection of 1.4 billion bushels for the current marketing year.

Weekly wheat inspections of 17.7 million bushels should be viewed as neutral to bullish as the market needed 16.1 million bushels this week to be on pace with USDA’s projection of 825 million bushels for the ‘09-‘10 marketing year.

Market Strategy
During the next few weeks, we are likely to see the commodity markets drifting sideways with limited breaks to the upside and downside, depending upon outside market forces, exports, and fund activity. Currently the Dow is trading at 10,438; the dollar index at 80.78; and nearby crude is trading at $78.70 per barrel. For technical assistance on making grain marketing decisions contact Carl L. German, Extension Crops Marketing Specialist.

Small Grain Weed Control

Thursday, March 4th, 2010

Mark VanGessel, Extension Weed Specialist;

The current weather is forcing us to do things different than we normally do. One issue to keep in mind is the herbicide and nitrogen restrictions. Be sure to read the herbicide label carefully because some products can be tankmixed with nitrogen but only if the nitrogen is no more than 50% of the spray solution (nitrogen is mixed 1:1 with water). A few specifics:

  ● Osprey cannot be applied within 14 days of nitrogen application.

  ● Harmony Extra can be applied with nitrogen, but use of surfactant differs depending on concentration of nitrogen and targeted weed species.

  ● Axial XL and PowerFlex can only be applied with nitrogen if it is mixed 1:1 with water; also PowerFlex cannot be applied with nitrogen if the amount is more than 30 lbs of N/A.

Axial XL and PowerFlex are two herbicides that are effective on annual ryegrass. Both of these can be double-cropped with soybeans. However, PowerFlex will injure vegetables planted after harvest.

There are reports of fields with poor chickweed control due to resistance to Harmony, Harmony Extra, or Finesse. If you are in that situation your alternatives are quite limited. Other small grain herbicides that we are familiar with do not provide acceptable chickweed control. One product to suggest is Starane Ultra (from Dow AgroSciences). This product is labeled for wheat and barley and has been used in the western US for control of Group 2 resistant weeds. Local data is limited, but in our trials it has good crop safety and good chickweed control. However, it will not control other key species such as wild garlic. Starane Ultra can be tankmixed with Harmony Extra to broaden the spectrum of control. Starane Utra by itself does not need an adjuvant and can be applied in nitrogen. Be sure to read and follow label directions.

Finally, some reminders on timing restrictions for small grain herbicides — the timing restrictions are based on crop safety.

2,4-D: up to jointing stage (pre-jointing)
Banvel/Clarity: up to jointing stage (pre-jointing)
Osprey: up to jointing stage
Buctril: up to boot stage
Harmony Extra or Harmony GT: up to flag stage (pre-flag leaf)
Starane Ultra: up to flag leaf emergence
PowerFlex: jointing
Axial XL: prior to boot

Critical Temperatures for Strawberry Buds and Blossoms and Freeze Protection

Thursday, March 4th, 2010

Gordon Johnson, Extension Fruit & Vegetable Specialist;

As we move closer the spring season, it is important to consider critical temperatures for strawberry buds and blossoms and freeze protection, especially where floating row covers are being used to obtain earlier production.

While plants are in a dormant state or when buds are not yet active in strawberries, the buds can tolerate temperatures down to 10ºF. As buds become active but before flowers open, the buds can survive down to temperatures of 22-27ºF (depends on just how close they are to opening).

Removing row covers during warmer winter periods can help to delay bud activity and reduce susceptibility to freezes. Replace row covers in times when freezes are expected. Highest yield potentials are usually obtained by uncovering and covering in the late winter and spring based on expected temperatures when compared to the practice of keeping row covers on continuously into the flowering or early fruiting stage (another issue is that pollinating insects are restricted with covers resulting in smaller fruit size if left on too long).

As flowers open, strawberries can only tolerate drops in temperature down to 30ºF. Small green fruit can stand temperatures down to 28ºF.

During flowering and fruiting be prepared to freeze protect using row covers and in very cold conditions, sprinklers. There are usually several days where temperatures drop into the low 20s during the spring and freeze protection is critical. Removing row covers too early with no provision to replace them during freeze events will often result in severe yield losses.

There are two types of freeze events that you need to be concerned with. Radiation freezes are where heat from air is lost to a black, cloudless sky with little or no wind conditions. We can be very successful at protecting strawberries in these conditions with row covers and/or sprinklers. Advection freezes are where cold air is moving into the area with high wind. This cold air blowing across the crop with significant wind speed is much harder to deal with and where some losses are likely, even with freeze protection measures.

For row covers, the heavier, the more protection against freeze. However, the heavier the cover, the less light, and the more growth is restricted. A balance is what is desired. Generally, covers in the 0.9-1.25 ounce/sq. yd. range give adequate freeze protection without restricting light too much.

Sprinklers can also be used to freeze protect, but they must be used correctly. The idea is to slowly build up ice over the period when temperatures are below freezing over the plant or row covers. As ice is formed, some heat is released to the plant surface and to the surrounding air, due to the heat of fusion. To do this, sprinklers must be turned on before temperatures are at 34-35ºF. Use low volume sprinklers and apply irrigation throughout the night, building ice all night. Continue into the morning until ice has melted. An application rate of 0.15 inch per hour with no wind will provide protection to 22ºF. At colder temperatures or higher wind speeds more water will be needed.

It is recommended that for protection against frost above freezing, use sprinklers or row covers alone, for freezing temperatures in the mid to high 20s use sprinklers or row covers alone, for temperatures in the low 20s or below, use both sprinklers and row covers. A combination of row covers and sprinklers has been shown to protect well below 20ºF.