Category Archives: Peanut

Recommended Peanut Seeding Rates for Virginia

Research data, such as those here Seeding Rate-May 2018, showed that saving seed at planting does not return high yields or economic profit. To achieve high yields, we recommend planting 5 or 6 seeds per foot of row, assuming a germination of 80% and above. This is in particular necessary for large seeded cultivars like Emery and Wynne, and under irrigation.  If germination is lower than 80%, which may be the case this spring for some seed lots of Wynne and Sullivan, 6 to 7 seeds are safe to plant but nothing above that. At least, we have not recently tested or heard of a benefit to increase the seeding rate above 7.

Imidacloprid effect on inoculant in peanut

There are concerns that imidacloprid-based insecticides for thrips control may negatively affect Rhizobia in inoculants when tank-mixed and applied in the furrow when plating peanut. As we are just a week (or less) from starting peanut planting in Virginia, I thought this issue be addressed for the farmer’s peace of mind if they decide to mix Optimize Lift inoculant with Admire-Pro insecticide for in-furrow seed treatment. I personally have not looked into this issue before, because we have not seen any effects in research plots or received complaints from farmers.  However, we will research this aspect in 2018.

Meanwhile, colleague Dan Anco, Peanut Specialist at Clemson University, tested the effect of different tank-mixtures for in-furrow applications on the nodule number and peanut yield in 2015 and 2017.  Graciously, Dan shared this information included in the In_furrow tank mixes tables.  The results clearly show no effect of mixing Optimize Lift with Admire-Pro on peanut yield in both years (Tables 1 and 2), even when the number of nodules from this mixture appeared to be reduced by the use of Admire-Pro in 2017 (Table 2). David Jordan, Peanut Specialist at North Carolina State University, reported similar findings Peanut Science Inoculant CFTGM Peanut Inoculant.

Peanut-Cotton Infonet Update

The Peanut-Cotton Infonet is up and running for the 2018 growing season. As in previous years, the website will provide:

  • Maximum, minimum, and average air temperatures
  • Average soil temperature at a 4 inch depth
  • Daily and accumulated (from May 1) peanut heat units
  • Daily and accumulated (from May 1) cotton degree-days
  • Daily and total seasonal (from May 1) rainfall
  • Last effective spray date for peanut leaf spot
  • Sclerotinia blight risk
  • Frost advisory (from September 25th to completion of harvest)

The web address has changed slightly and the website can be found here.

Soil temperatures in southeastern Virginia have been cool over the past couple of weeks (average less than 60 °F), and cool, wet conditions in some fields will favor seedling diseases in early planted crops. A warming trend over the next week will hopefully result in more favorable planting conditions towards the beginning of May.

For questions or concerns regarding the Peanut-Cotton Infonet throughout the growing season, contact Dr. Hillary Mehl (hlmehl@vt.edu).

Peanut Variety and Quality Evaluation. I. Agronomic and Grade Data

The 2017 PVQE agronomic and grading results are available here https://pubs.ext.vt.edu/AREC/AREC-231/AREC-231.html.  In 2017, 25 peanut breeding lines from the North Carolina State University’s Peanut Breeding program were tested and compared with five commercial cultivars at five locations in Virginia, North Carolina, and South Carolina. At two locations, two digging dates were performed, bringing the number of testing environments to seven. Data include the 2017 released cultivar ‘Bailey II’ tested as line ‘N12008olCLSmT’.  Bailey II is a Virginia-type line derived by backcrossing the high oleic seed oil trait patented by the University of Florida into the cultivar ‘Bailey’. Bailey II has approximately 44% jumbo and 43% fancy pods, and seeds with tan seed coat averaging 600 seed lb-1. Bailey II is partially resistant to three of four major regional diseases: leaf spot, Sclerotinia blight, and Tomato Spotted Wilt virus, but it should be considered susceptible to Cylindrocladium black rot. Bailey II has bright pods and flavor comparable with runner-type standards. Yields and the number of days to maturity are similar with Bailey (145 days). In PVQE trials, Bailey II out yielded the popular Bailey in all years of testing.

 

Peanut State Production and Marketing 2018 Meeting

The 2018 Peanut State Production and Marketing meeting will be held at Paul D. Camp Workforce and Development Center, Franklin, VA, on February 14. Here the program is available. Agenda for the peanut meeting Please make sure to attend this meeting offering important updates on agronomy, varieties, and pest management that will help growers make research based decisions for a successful 2018 peanut growing season.

Looking forward to see you there.

50th APRES Annual Meeting

American Peanut Research and Extension Society (APRES) will held its annual meeting and the 50th anniversary at the Doubletree Hotel in Williamsburg, VA, during July 10 through 12. The “Early Bird” Registration fee is $250 for members; spouses and children attend free. APRES has secured a group hotel rate of $129/night and a few per diem rooms at $91/night. The registration and the official call for papers are open, and complete details can be found on the APRES website www.apresinc.com.

As every year, Bayer CropSciences is sponsoring the Peanut Education for Excellence Program as part of the American Peanut Research and Education Society (APRES) annual meeting. They also fully fund the participation of one Agent at the annual meetings. The agent will have to submit an abstract and make an oral presentation in the Extension/Education section of the meeting about extension and technology transfer programs implemented for peanut production in their counties. The deadline for abstract submission is March 31.  In collaboration with the VA Peanut Board, I will continue to explore more funding opportunities to increase Agent participation at this important research and education meeting on peanut production.

I encourage all Extension Agents with peanut responsibilities to use this opportunity and participate at the 2018 APRES meeting.

Dicamba Training Announcement

The federal labels for XtendiMax® herbicide with VaporGrip® Technology (Monsanto), Dow DuPont ® FeXapan® herbicide Plus VaporGrip® Technology, and Engenia® Herbicide (BASF) now require additional training beyond a Pesticide Applicator’s License prior to use of these products “over the top” of dicamba-tolerant soybean or cotton.  Training for 2018 will be provided by the registrants of the products (BASF, Monsanto, and Dow DuPont).

Agents/dealers interested in scheduling a training in their area or having a company representative deliver the training at an already scheduled meeting should contact the following company representatives:

Company

Area

Name

Email

Phone

BASF

Eastern Shore

Gar Thomas

garfield.thomas@basf.com

NA

BASF

Rest of Virginia

Kelly Liberator

kelly.liberator@basf.com

NA

Monsanto

Virginia

Jeff Phillips

Jeffrey.i.phillips@monsanto.com

330-402-2591

Monsanto

Southeast Virginia

Ken Lampkin

kenneth.c.lampkin@monsanto.com

919-709-6049

If you schedule a training with either BASF, Dow DuPont, or Monsanto, I would encourage you to make the other companies aware of the training planned in your area.  That way, the companies can better coordinate their efforts to reach as many applicators as possible.  Also, training by any of the three registrants will cover all dicamba products labeled for in-crop use to dicamba-tolerant soybean or cotton (applicators do not need to take training from the registrant of the specific dicamba product they intend to use).

In lieu of the face-to-face trainings, the companies also plan to have a web-based training that will satisfy applicator training requirements.  Michael and I feel the face-to-face training will better prepare the applicators for the off-target challenges of dicamba.  Web-based training can be used as a last resort if a grower is unable to attend face-to-face training.  The following websites offer more information on web-based training:

https://www.roundupreadyxtend.com/Pages/default.aspx

http://www.dupont.com/products-and-services/crop-protection/soybean-protection/articles/fexapan-application.html

There are a few trainings scheduled for the area.  See the  link below for an announcement from Monsanto for two training sessions in Suffolk, VA on Wednesday January 31st.  BASF will be training applicators at the Virginia Grains & Soybean Conference (http://www.virginiagrains.com/annualconference/).  The BASF training for this meeting is schedule for Wednesday February 21st at 12:00pm.  I anticipate both companies to have other training;  Michael and I will keep you updated as we receive word.  Please help spread the word on these trainings, as many growers still do not know that training is required.  Also,I would encourage you and your applicators to pre-register for the events so folks can plan accordingly.

With that said, feel free to reach out to Michael or me if you have any questions or concerns.

Monsanto Dicamba Training Announcement

Eastern Shore AREC Field Day CANCELED!

Due to impending rain Tuesday and Wednesday and already saturated soils, the Eastern Shore AREC field day scheduled for Wednesday, September 13, 2017 has been canceled. Let’s hope Hurricane Irma keeps tracking further west. We certainly do not need any more rain!

EPA decision on chlorpyrifos

The head of the EPA, Scott Pruitt, signed an order last night denying the petition to ban chlorpyrifos (Lorsban). This decision will allow peanut growers in our area the continued use of this insecticide for the foreseeable future, perhaps until 2022 when the EPA is required to reevaluate safety of this product. The environmental group that filed the 2007 petition to ban chlorpyrifos has announced its plans to appeal the decision.  More information can be found here – https://www.epa.gov/newsreleases/epa-administrator-pruitt-denies-petition-ban-widely-used-pesticide-0

Scout now for marestail/horseweed

Recent mild temperatures and the mild winter are setting the stage for rapid development of marestail/horseweed (Conyza canadensis) this spring.  Marestail was particularly troublesome last year in soybeans.  Marestail can germinate in both the fall and the spring. It is more likely to overwinter in the rosette stage during mild winters.  If you wait until your typical burndown the marestail may start bolting and therefore be more difficult to control. Adding to this difficulty, many marestail populations are resistant to Roundup (and other glyphosate containing products). You should scout your fields targeted for soybeans now to identify overwintering marestail.  Marestail control can be achieved with 2,4-D  or dicamba now and still offer plenty of time to avoid plant back restrictions (up to 15 days for 2,4-D or up to 28 days for dicamba). Glyphosate resistant weeds and the difficulty in controlling more mature weeds underscore the need to scout fields earlier and use some alternative herbicides in your program.  Always consult the product label for specific instructions.