Tips for rye termination after a short growing season

ICYMI – A recent article from Iowa Farmer Today highlights tips from ISU Extension and Outreach for terminating a rye cover crop following a reduced growing season.

Given the limited fall growth and persistent cold weather this spring, there will likely be less cover crop growth compared to recent years. This could lead to termination challenges for those that are not prepared.  With three methods of termination, there are options for producers to choose from to find the best fit.  These methods include: herbicide (most widely used), rolling/crimping (after pollen shed) and limited tillage.

CC-TipsForTermination
Here are some keys for successful herbicide termination:

  • Translocated herbicides, like glyphosate, work best on actively growing plants
  • Spray on sunny afternoons when daytime temperatures are 60°F or above & nighttime temperatures stay above 40°F
  • Avoid spraying in the early morning or evening hours

Timing of termination recommendations:

  • Ahead of corn = terminate 10-14 days before planting
  • Ahead of soybeans = terminate 1-2 days before planting to maximize spring growth

For more tips, check out our earlier post Cover Crops: Tips for Termination!

Liz Juchems

Who Knew? Cover Crops, Corn and Water Molds Webinar Recap

Cover crops have numerous benefits, but not everyone is using them. Decreased yield is a major barrier but terminating at the right time can minimize risk. What are the factors that may impact yield and why does timing matter?

Dr. Alison Robertson, professor of plant pathology and microbiology and extension field crops pathologist at Iowa State University, wondered if corn seedling disease could be the culprit.

“As a pathologist, when I look at reduced stands, more barren plants, and slower emergence, I automatically think of seedling disease.”

In this month’s podcast, Robertson details the research her team is doing to determine what management practices could reduce yield drag.

They first had to determine if winter rye can even host pathogens that infect corn seedlings. They discovered that rye can host Fusarium graminearum and Pythium sylvaticum.

Next, they set up a field trial experiment seeding winter rye ahead of planting corn. They terminated five plots at different times, anywhere from 25 days before planting to two days after planting.

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Cover crop test fields in Boone, Iowa.

They found that when conditions are favorable, winter rye acts as a ‘green bridge’ for Pythium to infect the corn. Fusarium was present whether cover crops were used or not and Rhizoctonia did not appear at all.

Watch Dr. Robertson’s webinar here to learn the optimal time for termination and what additional factors may change it.

Brianne Osborn

Webinar TODAY: Reduce Your Risk of Yield Impact When Using Cover Crops

Montgomery_Co_rye_on_ground

Despite the many documented benefits of cover crops, some farmers are hesitant to add cover crops to their operations due to perceived risks of yield impact and increased Robertsondisease. Dr. Alison Robertson, Professor in the Department of Plant Pathology and Microbiology and Extension Field Crops Pathologist at Iowa State University, will discuss best management practices that can help farmers avoid reduced stands and lower yields. She will also explain how a cover crop may act as a green bridge for oomycete pathogens, thereby creating an increased risk of seedling disease in corn without proper management.

DATE: Wednesday, February 21, 2018
TIME: 1:00 p.m.
HOW TO PARTICIPATE: Log on as a guest shortly before 1:00 p.m.:
https://connect.extension.iastate.edu/ilf/

More information about this webinar is available at our website. If you can’t watch the webinar live, an archived version will be available on our website: https://www.iowalearningfarms.org/page/webinars

Julie Winter

Reduce Your Risk of Yield Impact and Disease When Using Cover Crops

Montgomery_Co_rye_on_ground

Mark your calendars! Iowa Learning Farms will host a webinar about how producers can reduce yield impact and disease risks when using cover crops on Wednesday, February 21 at 1:00 p.m.

RobertsonDespite the many documented benefits of cover crops, some farmers are hesitant to add cover crops to their operations due to perceived risks of yield impact and increased disease. Dr. Alison Robertson, Professor in the Department of Plant Pathology and Microbiology and Extension Field Crops Pathologist at Iowa State University, will discuss best management practices that can help farmers avoid reduced stands and lower yields. She will also explain how a cover crop may act as a green bridge for oomycete pathogens, thereby creating an increased risk of seedling disease in corn without proper management.

DATE: Wednesday, February 21, 2018
TIME: 1:00 p.m.
HOW TO PARTICIPATE: Log on as a guest shortly before 1:00 p.m.:
https://connect.extension.iastate.edu/ilf/

More information about this webinar is available at our website. If you can’t watch the webinar live, an archived version will be available on our website: https://www.iowalearningfarms.org/page/webinars

Thanks!

Julie Winter

 

Attend a Cover Crop Workshop Near You!

Iowa Learning Farms is hosting a series of spring cover crop management workshops around the state. These workshops will help prepare producers for spring management of cover crops and allow time for discussion to answer questions from new and experienced cover crop users. Topics at the workshops range from herbicide recommendations for termination and establishment, planter settings to handle higher amounts of biomass, cover crop seed selection, cover crop effects on soil health and more. Speakers include experts from Iowa State University Extension and Outreach, Practical Farmers of Iowa and USDA-ARS National Soil Tilth Laboratory.

Workshops are free and open to the public, but reservations are suggested to ensure adequate space and food. Contact Liz Juchems at 515-294-5429 or email ilf@iastate.edu.

We hope to see you there!

Cover crop workshop dates and locations include:
Press releases and flyer are provided below each event

February 23: Ventura Community Center, 12:30-2:30pm
4 North Weimer Street
Ventura, IA 50482
Press Release
Flyer

February 24: ISU Northwest Research and Demonstration Farm, 10:30am-12:30pm
6320 500th Street
Sutherland, IA 51058
Press Release
Flyer

February 25: Hawkeye Community College, 10:30am-12:30pm
Tama Hall, Room 102
1501 E Orange Rd
Waterloo, IA 50701
In partnership with Miller Creek Water Quality Improvement Project
Press Release
Flyer

March 1: The Celebration Farm, 10:30am-12:30pm
Timber Frame Barn
4696 Robin Woods Ln NE
Iowa City, IA 52240
In partnership with Rapid Creek Watershed Project
Press Release
Flyer

March 2: Mahaska County Extension Office, 10:30am-12:30pm
212 North I Street
Oskaloosa IA 52577
Press Release
Flyer

March 3: Armstrong Memorial Research and Demonstration Farm, 10:30am-12:30pm
53020 Hitchcock Avenue
Lewis, IA 51544
Press Release
Flyer

Attend an upcoming cover crop workshop near you!

Weldon_FD_soybean_field_dead_ryeIowa Learning Farms, Practical Farmers of Iowa and the Iowa Cover Crop Working Group, will host six cover crop workshops this spring in Cerro Gordo, O’Brien, Black Hawk, Johnson, Mahaska, and Pottawattamie counties. The workshops are free, open to the public, and include a complimentary meal.

Cover crops continue to grow in popularity in Iowa due to the many benefits they provide. Such benefits include reduced nitrogen and phosphorus loads entering water bodies, increased soil organic matter, and reduced soil erosion.  Fall 2015 was a good season for cover crop establishment and growth, with adequate moisture and growing temperatures.  Great fall growth helped protect the soil during the heavy rain events, but could present challenges this spring if farmers are not prepared with a termination plan and equipment adjustments.

These cover crop workshops will help prepare producers for spring management of cover crops and allow time for discussion to answer questions from new and experienced cover crop users. Topics at the workshops range from herbicide recommendations for termination and establishment, planter settings to handle higher amounts of biomass, cover crop seed selection, cover crop effects on soil health and more. Speakers include experts from Iowa State University Extension and Outreach, Practical Farmers of Iowa and USDA-ARS National Soil Tilth Laboratory.

 Cover crop workshop dates and locations include:

February 23: Ventura Community Center, 12:30-2:30pm

4 North Weimer Street, Ventura, IA 50482

 

February 24: ISU Northwest Research and Demonstration Farm, 10:30am-12:30pm

6320 500th Street, Sutherland, IA 51058

 

February 25: Hawkeye Community College, 10:30am-12:30pm

Tama Hall, Room 102; 1501 E Orange Rd, Waterloo, IA 50701

In partnership with Miller Creek Water Quality Improvement Project

 

March 1: The Celebration Farm, 10:30am-12:30pm

Timber Frame Barn; 4696 Robin Woods Ln NE, Iowa City, IA 52240

In partnership with Rapid Creek Watershed Project

 

March 2: Mahaska County Extension Office, 10:30am-12:30pm

212 North I Street, Oskaloosa IA 52577

 

March 3: Armstrong Memorial Research and Demonstration Farm, 10:30am-12:30pm

53020 Hitchcock Avenue, Lewis, IA 51544

 

Workshops are free and open to the public, but reservations are suggested to ensure adequate space and food. Contact Liz Juchems at 515-294-5429 or email ilf@iastate.edu.

For details on the workshops, and for more information about Iowa Learning Farms, visit the website: http://www.extension.iastate.edu/ilf/.

Liz Juchems