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Reflections on 2017

Happy New Year!!! This week has been a good one to reflect on 2017.

It was a year of unusual situations such as the dry winter allowing for nitrogen burn onIMAG1311 corn, herbicide carryover, wheat stem maggot in corn from late-terminated wheat/rye, dicamba concerns on soybeans/trees/vegetables, downed corn ears and the challenge of recovering them…I think so often as I reflect, it’s easy to see the problems that occurred as those tended to be the headlines.

But as I also reflect, I think of so much more. It’s been a hard several years both personally and professionally for me and one reason I love Extension is for the relationships I’m so blessed to have. As I reflect on this past year, it was a year of spending time sharing the ways we all were hurting/healing while looking at crop problems, working in on-farm research plots, or just visiting. It was a special year in building even deeper relationships with many of you whom I’ve served in the past and meeting new people in the area I’m serving. Thank you also for your grace as it is a challenge serving regions of counties. I truly am grateful for the friendships and opportunity to serve you!

One of my highlights was pesticide training…yes, pesticide training! I know it’s required for us as private applicators every three years, but it’s my chance to teach/learn from/see so many of you and do my best to share important crop information as well. I enjoy winter meeting time as it always feels like a big reunion to me to see who comes and to catch up! Pesticide training last year was fun to still have the opportunity to train those of you in my former area and meet many in my new area.

Another highlight is a group of youth I meet with each month for Crop ScienceIMAG0122 Investigation (CSI). This was such a rewarding experience for me in Clay County working with Clay/Nuckolls county youth and watching them learn, grow, and some pursue ag careers through the years. In York County I’m blessed with a very young, energetic group of youth who are so much fun and love to learn! Basically, the youth are detectives every time we meet as I give them a real problem to solve. We spend time out in the fields learning about crop growth, weed/insect/disease ID, take industry tours, etc. Our youth right now are mostly in the 6-11 year old range but any youth and parents are welcome to join us if you’re interested. Please just let me know at jrees2@unl.edu for meeting times.

On-farm research plots are always a highlight for me for how much can be learned and this year we had some intense plots regarding data collection! Grateful for the farmer-cooperators in the time spent on these plots and how you’re so good at working with me.

I also am grateful to the media. With fewer of us in Ag Extension, we’re called on more often to share when problems arise. So grateful for the relationships with all our media partners-TV, radio, newspapers, magazines-and all you do in helping us share our research-based information timely!

As I think about 2018, one concern continues to be low commodity prices and ways to make it through. The Farm Bill and what will happen regarding it is another topic. Dicamba unfortunately may continue to be a topic. And, it seems like every year we have varying weather that creates challenges and opportunities. Two things that will continue are the optimism/resiliency I see every year in our farmers and the strong family that Ag in general is. Here’s wishing you a safe and blessed 2018!

York Ag Expo: Reminder of the York Ag Expo January 10-11 at the Holthus Convention Center in York. A full list of exhibitors is available at: http://yorkchamber.org/yorkagexpo/. Lyndy Phillips will be the speaker at the Prime Rib Supper at Stone Creek in McCool Junction with social hour at 5:30 p.m. and supper at 6:30 p.m. Tickets can be purchased for $30 at the York Chamber Office. I’m really excited for the opportunity to provide educational sessions this year and am particularly excited about the cover crops/annual forages for grazing. If you have cattle and are looking for outside-the-box ideas, this session may be helpful. Educational sessions include:
• Chemigation Training by Steve Melvin, Jan. 10 from 9-Noon
• Cover Crops/Annual Forages for Grazing, Jan. 10 from 1-4 p.m.
• Private Pesticide Training by Jenny Rees, Jan. 11 from 9-Noon
• Precision Ag, Jan. 11 from 1-4 p.m.

Winter Ag Program Brochure:  You can also find our winter ag program brochure for South Central/Southeast Nebraska at:  https://go.unl.edu/vzyg.

Solar Energy in Ag

solar-energy-in-ag

Field to Market Workshops

Field to Market Flyer 2015 - Clay County (1)

Most of the major grain buyers and companies using feed grains in food are reporting ways they are becoming more resourceful with energy, water, raw materials, and product waste streams.  The consumer is asking these companies to improve the efficiency of producing and bringing their products to market.  Nebraska Extension in cooperation with the Corn and Soybean Boards is conducting workshops to introduce Nebraska farmers to a tool that measures key farm efficiencies (web-based computer tool called the Fieldprint Calculator).

The field assessment workshops in Nebraska are hands-on and will show growers how to document eight sustainability and efficiency indicators via use of a laptop computer. The indicators are:

  • land use,
  • conservation,
  • soil carbon,
  • irrigation water use,
  • water quality,
  • energy use,
  • greenhouse gas emissions, and
  • water quality.
Computer laptops are provided or participants can bring your own. No prior computer knowledge is necessary and experienced users will be available to provide assistance.

Workshop Schedule

Please contact the Extension Educator listed for each site to preregister by Dec. 3.

Lincoln
Monday, December 7, 9 a.m. – 1 p.m.
UNL Extension Office in Lancaster County, 444 Cherrycreek Road
Contact: Tyler Williams, (402) 441-7180 or tyler.williams@unl.edu

Beatrice
Monday, December 7, 5:30 – 9 p.m.
UNL Extension Office in Gage County, 1115 West Scott St.
Contact: Paul Hay, (402) 223-1384 or paul.hay@unl.edu

Auburn
Tuesday, December 8, 9 a.m. – 1 p.m. Nemaha County Hospital Meeting Room, 2022 13th St.
Contact: Gary Lesoing, (402) 274-4755 or gary.lesoing@unl.edu

Geneva
Tuesday, Dec. 8, 5:30 – 9 p.m. UNL Extension Office in Fillmore County, 1340 G St.
Contact: Brandy VanDeWalle, (402) 759-3712 or brandy.vandewalle@unl.edu


Clay Center
Wednesday, Dec. 9, 9 a.m. – 1 p.m.
UNL Extension Office in Clay County, 111 West Fairfield Contact: Jennifer Rees, (402) 762-3644 or jenny.rees@unl.edu

Central City
Wednesday, Dec. 9, 5:30 – 9 p.m.
UNL Extension Office in Merrick County, 1510 18th St.
Contact: Troy Ingram, (308) 946-3843 or troy.ingram@unl.edu

Fremont
Thursday, Dec. 10, 9 a.m. – 1 p.m. UNL Extension Office in Dodge County, 1206 West 23rd St.
Contact: Nathan Mueller, (402) 727-2775 or nathan.mueller@unl.edu

Mead
Friday, Dec. 11, 9 a.m. – 1 p.m.
UNL Extension Office in Saunders County, 1071 County Road G
Contact: Keith Glewen, (402) 624-8030 or kglewen1@unl.edu

 

Corn Disease July 2015

Radio advertisements, email blasts, and other media are warning of corn diseases and the need for fungicides.  Two months of humid, wet weather has allowed for disease development.  It’s important to know what diseases truly are in your field before spraying a fungicide, particularly with today’s economics.  Here’s what we’re seeing in fields right now in the Clay, Nuckolls, Thayer, Adams county area.  Based on the diseases we’re seeing, we would recommend you scout your fields to know whether you have mostly bacterial or fungal diseases present.  Consider disease pressure, where on the plant the disease is occurring, growth stage, and economics.  We have had southern rust show up in 10 of the last 11 years I’ve been serving in this area.  If you spray a fungicide at tassel, you may not have enough residual to ward off southern rust when it appears later, potentially resulting in the need for a second application.  In our area thus far, I’m not seeing enough disease pressure in many fields to warrant a fungicide at tassel; consider delaying an application till later for economic and resistance-management reasons.  Ultimately this decision needs to be done on a field by field basis.  Please also see this UNL CropWatch article regarding fungicide application and corn growth stage.  Although I don’t have a photo of it, I’ve also seen common rust in the mid and lower portions of corn canopies thus far.

Anthracnose has been observed in fields for a good month now.  It is mostly seen on lower leaves of plants, particularly in fields where we've had high amounts of rainfall, standing water, and/or hail.  I haven't seen it moving up the plant very far yet.  There are fungicides labeled for this, but we rarely recommend fungicide treatment for anthracnose.

Anthracnose has been observed in fields for a good month now. It is mostly seen on lower leaves of plants, particularly in fields where we’ve had high amounts of rainfall, standing water, and/or hail. Lesions are tan in the center and have a wavy yellow colored margin.  I haven’t seen it moving up the plant very far yet. There are fungicides labeled for this, but we don’t often recommend fungicide treatment for anthracnose.

We saw this disease in the Saronville/Sutton area last year.  This year, we are seeing it throughout Nuckolls, Thayer, Clay, and Adams counties...and most likely others too.  Some hybrids (and have seen this across companies) are highly affected by this bacterial disease.  We have informally called it

We saw this disease in the Saronville/Sutton area last year. This year, we are seeing it throughout Nuckolls, Thayer, Clay, and Adams counties…and most likely others too. Some hybrids (and have seen this across companies) are highly affected by this bacterial disease. Neither last year, nor this year, has the pathogen causing this disease been confirmed. Plants will have vein-limited lesions in streaks on the leaves. It is often confused with gray leaf spot early on.  Take a hand-lens and looking closely, you will see wavy margins on the lesions which doesn’t usually occur with gray leaf spot.  Over time, these lesions become elongated and can coalesce with other lesions. Also looking closely with a handlens or microscope, one finds the leaf tissue eventually becomes transparent. While other diseases can look similar to it, under the microscope, no fungal spores are found other than secondary ones. Putting an infected leaf in water reveals cytoplasmic streaming in which the bacteria is escaping the leaf tissue. (The pathogen causing Goss’ wilt also does this, but this disease is not the same as Goss’ wilt). Fungicides will not cure bacterial diseases and the products advertised for targeting bacterial diseases haven’t been researched for this disease.  This is the primary disease we are seeing in our area right now-and it looks nasty in some fields!  Unfortunately there’s nothing we can do about it.  If you are considering testing one of the products for bacterial diseases, please let me know as I’d appreciate testing it with you via on-farm research.

Goss' wilt (bacterial disease) has been observed in fields as well.  I typically notice it along field edges, pivot tracks, pivot/well roads or hail-damaged fields as plant wounds in general allow an entry for bacterial pathogens.  However, research has shown that the bacterial pathogen causing Goss' wilt can enter through the leaf stomates as well.  Leaf miner damage can be observed at the top of this photo, and often, but not always, I notice this occurring together in fields.  There is nothing we can do for Goss's wilt if you have this disease in your fields right now.  There are products targeting bacterial diseases on the market.  If you're interested in trying these, please consider an on-farm research experiment to prove the efficacy to yourself and help us obtain data.

Goss’ wilt (bacterial disease) has been observed in fields as well. I typically notice it along field edges, pivot tracks, pivot/well roads or hail-damaged fields as plant wounds in general allow an entry for bacterial pathogens. However, research has shown that the bacterial pathogen causing Goss’ wilt can enter through the leaf stomates as well. Leaf miner damage can be observed at the top of this photo, and often, but not always, I notice this occurring together in fields. There is nothing we can do for Goss’s wilt if you have this disease in your fields right now. There are products targeting bacterial diseases on the market. If you’re interested in trying these, please consider an on-farm research experiment to prove the efficacy to yourself and help us obtain data.

Physoderma brown spot typically doesn't occur in our area until tasseling (which is where we are at now in some fields).  However, I was seeing this as early as two weeks ago on some hybrids.  The pathogen causing this disease is a fungal-like pathogen that moves with water.  You will notice a purple/brown color on midribs of leaves, leaf sheaths, stalks, and tiny yellow/brown/purple spots on leaves.  This disease isn't considered yield-limiting or of significance to us in Nebraska.  Some confuse this disease with southern rust, but there are no pustules produced with Physoderma brown spot.

Physoderma brown spot typically doesn’t occur in our area until tasseling (which is where we are at now in some fields). However, I was seeing this as early as two weeks ago on some hybrids. The pathogen causing this disease is a fungal-like pathogen that moves with water. You will notice a purple/brown color on midribs of leaves, leaf sheaths, stalks, and tiny yellow/brown/purple spots on leaves. This disease isn’t considered yield-limiting or of significance to us in Nebraska. Some confuse this disease with southern rust, but there are no pustules produced with Physoderma brown spot.

The larger, rectangular lesion is typical of gray leaf spot found in some lower leaf canopies right now.  It is easy to confuse with anthracnose as both diseases appear a little different on various hybrids.  Gray leaf spot will be vein-limited while anthracnose is more blotchy in appearance.

The larger, rectangular lesion is typical of gray leaf spot found in some lower leaf canopies right now. It is easy to confuse with anthracnose as both diseases appear a little different on various hybrids.  Gray leaf spot will be vein-limited while anthracnose is more blotchy in appearance.  Comparing gray leaf spot with the unknown bacterial disease, the lesion edge will be straight for gray leaf spot and wavy for the bacterial disease.

Northern corn leaf blight is a disease we're hearing a lot about but I have yet to see it in our area.  Most have been mistakingly calling the unknown bacterial disease shown above northern corn leaf blight, but there's truly a difference as you see these photos.  Compared to gray leaf spot, northern corn leaf blight will be more cigar-shaped instead of forming a rectangle.  As this photo taken from the Mead, NE area shows, lesions are often forming in close proximity to each other on the leaves in Nebraska right now.  This disease is one to watch as it has been expanding on certain hybrids in some fields, particularly in eastern, Nebraska.  However, I still haven't seen it in our area and haven't received any confirmations of it being found in our area.

Northern corn leaf blight is a disease we’re hearing a lot about but I have yet to see it in our area. Most have been mistakingly calling the unknown bacterial disease shown above and even Goss’ wilt, northern corn leaf blight, but there’s truly a difference as you see these photos. Compared to gray leaf spot, northern corn leaf blight will be more cigar-shaped instead of forming a rectangle. As this photo taken from the Mead, NE area shows, lesions are often forming in close proximity to each other on the leaves in Nebraska right now. This disease is one to watch as it has been expanding on certain hybrids in some fields, particularly in eastern, Nebraska. However, I still haven’t seen it in our area and haven’t received any confirmations of it being found in our area at this time. (Photo courtesy of Aaron Nelson, Nelson Precision Agronomics).

Sugar Application in Crops

Corn is approaching or at V7-V8 growth stage.  A few weeks ago, we published research results in our UNL CropWatch website.  That information can be found in the links below the video.  If you are interested in trying this in your field this year, please see the Nebraska On-Farm Research protocals also shown below.

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