Soybeans

Soybean Vein Necrosis Virus and Downy Mildew

Soybean field

Article is taken from  https://agcrops.osu.edu/newsletter/corn-newsletter/2024-26/soybean-vein-necrosis-virus-and-downy-mildew by Horacio Lopez-Nicora

As we progressed with our field scouting this past week, it has become evident that Soybean Vein Necrosis Virus (SVNV) is making a noticeable presence in our soybean crops across various regions. SVNV, a viral disease primarily spread by thrips, manifests typically as yellowing and necrosis along the veins of the soybean leaves. Initial symptoms include chlorotic lesions that evolve, resulting in a necrotic, vein-associated appearance. The impact of SVNV on overall yield is still under investigation, but early infection is generally more detrimental. Growers should be vigilant about thrip populations and adopt integrated pest management strategies, including the use of resistant varieties if available, to mitigate the spread of this virus.

Continue reading Soybean Vein Necrosis Virus and Downy Mildew →

Battle for the Belt: Season 2, Episode 18- Planting Date and Weed Control Interactions

Champion Belt for Battle for the Belt in corn

Article is taken from https://agcrops.osu.edu/newsletter/corn-newsletter/2024-25/battle-belt-season-2-episode-18-planting-date-and-weed-control by Taylor Dill, Osler Ortez, Laura Lindsey, Alyssa Essman

Episode 18 of Battle for the Belt is now available: https://www.youtube.com/watch?v=xbf-dlV-jmc

In Episode 18, we are with Dr. Alyssa Essman, Weed Control Extension State Specialist, at the Western Agricultural Research Station in South Charleston, Ohio talking about weed management considerations for different planting dates.

Weed Control Considerations
The critical period for weed control is the first four to six weeks after crop planting. This period is when the young plants are most sensitive to competition with weeds for resources such as moisture and sunlight. Timely weed management, especially within this window, will reduce yield loss potential from the presence of weeds. In situations where soybean or corn are planted, but inclement weather prevents us from being able to get back into the field in a timely manner, it is very important to refer to herbicide labels and the weed control guide to evaluate management options. In areas that have had dry weather, the use of adjuvants becomes especially important, as plants develop a thicker cuticle and the herbicide has a harder time getting into the plant.

Weed Control in Corn – Western Site
The fifth planting date (June 17) of Battle for the Belt has more weed competition than the other planting dates at this time, as the plants were not tall enough yet to fully canopy, and the weather had not allowed a post emergence application. The height of weeds, growing past the top of the corn, shows that the weeds have a competitive advantage. In these plots, the plants near the weeds are about a leaf in growth stage behind the plants that are further from the weeds. In earlier planting dates, there is greater canopy closure and fewer weeds.

Continue reading Battle for the Belt: Season 2, Episode 18- Planting Date and Weed Control Interactions →

Lep Monitoring Network – News on WBC and CEW, Update # 15

Article taken from https://agcrops.osu.edu/newsletter/corn-newsletter/2024-25/lep-monitoring-network-%E2%80%93-news-wbc-and-cew-update-15 by Stephanie Pflaum, Amy Raudenbush, Maddie Brillhart, Nic Baumer, Lee Beers, CCA, Trevor Corboy, Allen Gahler, Don Hammersmith, Mary Jo Hassen, Alan Leininger, Ed Lentz, CCA, Sarah Noggle, Les Ober, CCA, Jordan Penrose, Mike Sunderman, Frank Thayer, Kyle Verhoff, Brooks Warner, Jacob Winters, Curtis Young, CCA, Andy Michel, Kelley Tilmon

We have just finished out our 15th week of monitoring for Ohio pests at the Lep Network. This past week, we have seen a continuation of WBC numbers trending down and a slight increase in the CEW average. As was mentioned last week, WBC populations across Ohio have most likely hit their peak numbers of the season and a decline should be expected. While we are most likely beginning to round out of the peak for this pest, any counties with averages that are still above 7 should continue scouting until their county numbers have significantly declined.

Western Bean Cutworm numbers are peaking in many counties across the state
This past week was our 6th week monitoring for WBC in Ohio. The statewide average for WBC decreased again from 1.9 during the week ending on July 21st to 1.0 for the week ending July 28th. The counties with the highest averages are Sandusky (19.0), Huron (7.0) and Henry (4.8) (Figure 1). While we are relatively certain that we have surpassed the peak in WBC moths for this year and are starting the decline, it is still important to be scouting for WBC egg masses (Figure 2). As mentioned above, if this week’s average topped 7 moths in your county, see below for tips on how to scout for this damaging pest. Counties that should continue scouting this week are: Huron and Sandusky.

Continue reading Lep Monitoring Network – News on WBC and CEW, Update # 15 →

Lep Monitoring Network – Time to Scout for Western Bean Cutworm, Update # 14

Corn earworm eggs and larvae on leaf

Article is taken from https://agcrops.osu.edu/newsletter/corn-newsletter/2024-24/lep-monitoring-network-%E2%80%93-time-scout-western-bean-cutworm-update by Stephanie Pflaum, Amy Raudenbush, Maddie Brillhart, Trevor Corboy, Allen Gahler, Don Hammersmith, Mary Jo Hassen, Ed Lentz, CCA, Kendall Lovejoy, Sarah Noggle, Les Ober, CCA, Jordan Penrose, Beth Scheckelhoff, Mike Sunderman, Frank Thayer, Kyle Verhoff, Jacob Winters, Kayla Wyse, Curtis Young, CCA, Andy Michel, Kelley Tilmon

We have just finished out our fourteenth week of monitoring at the Lep Network. This past week, we saw WBC numbers trending down and CEW numbers close to zero across the state.  Western bean cutworm numbers topped out with Sandusky County having the highest average by far of 38 moths. As for corn earworm, Putnam was the only county to report any CEW sightings for this past week and averaged 0.3 moths in the county. Western bean cutworm populations across Ohio have most likely hit their peak numbers of the season and a decline should be expected. While we are most likely beginning to round out of the peak for this pest, any counties with averages that are still above 7 should continue scouting until their county numbers have declined.

Western Bean Cutworm numbers are peaking in many counties across the state
This past week was our fifth week monitoring for WBC in Ohio. The statewide average for WBC decreased substantially from 9.3 during the week ending on July 14th to only 1.9 for the week ending July 21st. The counties with the highest averages are Sandusky (38.0) and Lorain (8.0) (Figure 1). Here at the Lep Network, we are fairly certain that we have already seen our peak in WBC moths for this year and are starting the decline. Despite this shift in numbers, it is still important to be scouting for WBC egg masses (Figure 2), especially if this week’s average topped 7 moths in your county. Counties that should continue scouting this week are: Defiance, Huron, Lorain, Sandusky, Wayne, and Wood.

Continue reading Lep Monitoring Network – Time to Scout for Western Bean Cutworm, Update # 14 →

Check Roots for Soybean Cyst Nematode: What’s Your Number?

Soybean Cyst Nematode in hand

Article is taken from https://agcrops.osu.edu/newsletter/corn-newsletter/2024-24/check-roots-soybean-cyst-nematode-what%E2%80%99s-your-number by Horacio Lopez-Nicora

Soybean cyst nematode (SCN) is quietly expanding its presence in Ohio, with increasing numbers across the state. Fields affected by SCN might not show aboveground visible symptoms, but SCN females can be detected attached to soybean roots six to eight weeks after planting. We encourage Ohio soybean growers to actively manage SCN by checking roots for the presence of SCN. If you’re unsure whether you have SCN in your fields, take a walk through your fields with a shovel, digging up plants every 30 to 50 paces. Carefully remove soil from the roots (a water bucket can help) and look for SCN females (Fig. 1). Initially white to cream, turning yellow and eventually brown, SCN females are significantly smaller than nitrogen-fixing nodules (Fig. 1). The SCN females will eventually fill with over 200 eggs, transforming into cysts that protect the eggs and allow them to survive for several years in infested fields. We encourage growers, agronomists, and crop consultants to check soybean roots for SCN throughout July, August, and September.

Figure 1. Soybean roots infested with SCN. Note the significantly smaller lemon-shape SCN female (red circle) attached to roots compared to larger nitrogen-fixing nodules (yellow circle).

Figure 1. Soybean roots infested with SCN. Note the significantly smaller lemon-shape SCN female (red circle) attached to roots compared to larger nitrogen-fixing nodules (yellow circle).

Knowing if you have SCN is the first step in managing it effectively. Watch this video to learn how to check your roots for SCN females. If SCN is detected in your field, a fall soil sample can determine your SCN numbers and help tailor appropriate management strategies. If you are already planting SCN-resistant varieties, checking roots can help evaluate the effectiveness of your resistance management or identify if the SCN population in your field is adapting to those resistant varieties (a shift in virulence).

Maintaining low SCN levels is much easier than reducing high numbers below damage thresholds. With support from the Ohio Soybean Council and The SCN Coalition, we can process up to two soil samples per grower for SCN testing, free of charge [read more here]. Share your #SCNRootCheck photos on social media by tagging @TheSCNCoalition on Twitter and Facebook, and @Ohiosoycouncil on Twitter and @ohiosoybeancouncil on Facebook.

Thinking of Grain Market from Field: Updated 2024 Planting Estimates and Market Outlook

Article taken from https://u.osu.edu/ohioagmanager/2024/07/04/thinking-of-grain-market-from-field-updated-2024-planting-estimates-and-market-outlook/ by Dr. Seungki Lee, Department of Agricultural, Environmental, and Development Economics,  The Ohio State University

Click here to access a PDF of this report

 

Highlights 

  • Despite relatively hot and dry conditions, new crop growth is plain sailing.
  • Corn acreage is estimated to be larger than expected.
  • US grain stocks for both corn and soybeans are the highest post-Covid.
  • Ohio on-farm soybean stock is 64% higher than in 2023.

Introduction

Summer is a busy season for grain producers, leaving little time to analyze the market and strategize sales plans. Nevertheless, the first week of July is a good time to take a “10,000-foot view” of the market, as the USDA releases several important reports by the end of June. In this article, we will discuss grain market outlook by reviewing the USDA new crop planting estimates, WASDE report, and grain stocks report.

Continue reading Thinking of Grain Market from Field: Updated 2024 Planting Estimates and Market Outlook →

Enterprise Budgets from OSU Extension

I have had some calls about the location of the OSU Extension enterprise budgets for Corn, Soybeans, and Wheat. I thought I would share the information with the entire email list. Budgets are located at https://farmoffice.osu.edu/farm-management/enterprise-budgets#2022. You will need to scroll down on the page and choose the budget you are looking for under 2023.

Have a great week!

Virtual Corn College and Soybean School

Due to popular demand, the AgCrops Team will host the 2nd annual virtual Corn College and Soybean School on February 15, 2022, from 9:00 AM – 4:00 PM featuring your OSU Extension state specialists, including the new corn agronomist, Dr. Osler Ortez, and new soybean pathologist, Dr. Horacio Lopez-Nicora. CCA CEUs will be available during the live presentations. The cost of the program is $10. To register go to go.osu.edu/cornsoy. A zoom link will be sent after registering for the webinar. For more information contact, Laura Lindsey at 614-292-9080 or email her at lindsey.233@osu.edu.

2022 Corn College Soy School flyer.

Science for Success: Answering Soybean Questions

With funding from United Soybean Board, soybean agronomists across the U.S. are hosting a ‘Notes from the Field’ webinar series the first Friday of each month beginning May 7. Join research and extension specialists from Land Grant institutions for a monthly informal discussion on production topics of timely relevance. Bring your questions!

When:  May 7, June 4, July 9, and August 6 at 9:00 AM eastern time

Want to plug in:  Register to attend (via Zoom) for each monthly session and you will receive Zoom login information. Register at:
https://ncsu.zoom.us/meeting/register/tJEkdeiqrTIqHNMYI3FuXRVPgsC87mavL6hs

If you have any questions, please contact Laura Lindsey (lindsey.233@osu.edu or 614-292-9080).

Did you miss out on our Ohio State University Corn or Soybean College?

Did you miss out on the Ohio State University Extension Corn or Soybean College on February 11th? We have an opportunity for you to rewatch the recordings.  The recordings are broken down into topics and smaller sections. If you are having any problems viewing, please reach out to me.

The recorded presentations up on our Ohio State Ag Crops YouTube Channel:

Pierce Paul summarized the Q&A portion of his session in the Corn Newsletter last week. You can access that summary here.

Pre-harvest Herbicide Treatments

Velvetleaf in a Soybean Field

Information on preharvest herbicide treatments for field corn and soybeans can be found in the “Weed Control Guide for Ohio, Indiana, and Illinois”, at the end of these crop sections (pages 72 and 143 of the 2020 edition).  Products listed for corn include Aim, glyphosate, and paraquat, and for soybeans include Aim, paraquat, glyphosate, and Sharpen.  Some dicamba products are also approved for preharvest use in soybeans, and some 2,4-D products are approved for use in corn, and these are not listed in the guide.  The basic information for these follows:

Dicamba – soybeans:  Apply 8 – 32 oz/A (4 lb/gal products) as a broadcast or spot treatment after soybean pods have reached mature brown color and at least 75% leaf drop has occurred; soybeans may be harvested 14 days or more after a pre-harvest application; do not use preharvest-treated soybean for seed unless a germination test is performed on the seed with an acceptable result of 95% germination or better; do not feed soybean fodder or hay following a preharvest application of this product. Continue reading Pre-harvest Herbicide Treatments →

New Crop Staging Videos

A new suite of crop staging videos has been built by faculty at The Ohio State University that highlight corn, soybean, and alfalfa. The videos highlight some common staging methods for each crop and connect the staging guidelines to practice using live plants in the field. The videos can be found in the “Crop Growth Stages” playlist on the AgCrops YouTube Channel: https://www.youtube.com/channel/UCbqpb60QXN3UJIBa5is6kHw/playlists. These compliment some of the wheat staging videos previously posted on the AgCrops YouTube channel as well. As the crops progress through the reproductive stages, expect some more videos to be posted! Continue reading New Crop Staging Videos →

Lookout for Spider Mites

Soybean leaves showing speckling.

With continued dry weather, spider mites are one of the main pests to remain vigilant about in field crops.  They will often show up in field borders first as they move in from other habitats, for example, if nearby ditches have been mowed.  Spider mites are difficult to see.  Look for injury signs — yellow spotting or stippling on the upper side of leaves.  In soybeans, this damage usually begins in the lower canopy and progresses upward as the mite population increases.  Heavily infested leaves may also have light webbing similar to spider webs. Continue reading Lookout for Spider Mites →

Considerations for Using Soybeans as a Cover Crop

Taken from the CORN Newsletter – Article by Laura Lindsey

From the USDA RMA website (https://www.rma.usda.gov/News-Room/Frequently-Asked-Questions/Prevented-Planting-Flooding):

“Q. Can I plant a cover crop of the same crop I was prevented from planting? Or in other words, can I use the seed I have on hand (corn, soybeans, wheat) to plant a cover crop as long as it’s at a lower-seeded rate that qualifies for the cover crop?

A. Yes. An acceptable cover crop must be generally recognized by agricultural experts as agronomically sound for the area for erosion control or other purposes related to conservation or soil improvement is planted at the recommended seeding rate, etc. The cover crop may be the same crop prevented from planting and may still retain eligibility for a prevented planting payment. The cover crop planted cannot be used for harvest as seed or grain.” Continue reading Considerations for Using Soybeans as a Cover Crop →

How many soybean acres do we need in 2019?

By: Todd Hubbs, Department of Agricultural and Consumer Economics University of Illinois
Previously published by Farmdoc Daily

We have reached the time of the year where speculation about acreage for the 2019 crops begins in earnest. While the

number of acres planted to soybeans appears set to decrease, current projections indicate an intention to plant significantly more acres than necessary to reach break-even prices in Illinois under current consumption and stock level forecasts. Continue reading How many soybean acres do we need in 2019? →