Volume 3, Issue 1
January 30, 2020
This newsletter is an update on current topics and events in agriculture in Boone, Dallas, Jasper, Madison, Marshall, Polk, Story, Tama, and Warren counties.

Meaghan Anderson
Extension Field Agronomist

ISU Extension & Outreach
220 H Avenue
Nevada, Iowa 50201
Office:  515.382.6551
Cell:     319.331.0058

Upcoming Events

IDALS 2020 Pesticide Testing Schedule

Feb 11-12 - Agribusiness Showcase & Conference, Des Moines

Feb 21 - Soil Fertility Workshop, Knoxville

Feb 25 - Iowa Soybean Association Research Results Forum, Ankeny

March 17 - Cover Crop Field Day
, Indianola (stay tuned for more info)

Private Pesticide Applicator Trainings
See a list of my trainings
Search the county calendar to look for a training near you

Women's events
Agronomy in the Field winter webinar series - email me for more information!

Feb. 18 - growing season weather outlook

March 17 - planning a herbicide program

April 7 - early season scouting tips and tricks

Handy Links

Central Iowa Crop Update
Updates from an agronomist and weed nerd in central Iowa.

In this issue:

  • Soil Fertility Meeting in Knoxville on Feb. 21
  • Weather outlook for the next several months
  • Dicamba trainings available online or in-person
  • Corn and soybean fungicide updates
  • Are you keeping an eye on stored grain?
  • Summary of 2019 insecticide evaluations for soybean pests
  • Is soybean cyst nematode (SCN) costing you?

February 21 - Soil Fertility Workshop, Knoxville

Rebecca Vittetoe and I will be hosting a Soil Fertility Workshop in Knoxville on February 21 to help farmers with soil test interpretations and recommendations. The cost of managing soil fertility changes with the price of fertilizer and increased demand for nutrients with our increasing crop yields. Understanding soil fertility basics will help better manage nutrients and each fertilizer dollar spent. These workshops will help you:
  • Discover what research shows about crop response to different soil test levels
  • Calculate how much phosphate and potash your own crop removes from the soil
  • Understand the odds of getting a return on your fertilizer investment based on your soil test results
  • Know when you should or should not alter fertilizer application rates to match your purchasing needs
  • Understand soil management decisions so you can be a better fertilizer consumer
Please reach out if you have any questions.

February 21 - co-hosted by Warren and Marion Counties
Location: Marion County Extension, Knoxville
9:00 a.m. to noon with lunch to follow
$40 registration - more information available online, in the flyer, or call Andy with Iowa State Extension & Outreach in Marion County at 641-842-2014
Thank you to the Iowa Corn Growers Association for sponsoring this meeting!

Weather outlook for the next several months

We keep in close contact with Dennis Todey, Director of the Midwest Climate Hub, and Justin Glisan, Iowa's state climatologist, throughout the year to better understand what is happening with weather patterns. We recently asked them to team up and provide us an update on what the weather outlook is for the rest of winter and early spring. You can read more about the weather outlook for late winter and spring here.

The shortened version of this story is that we may come into spring cool and wetter than last spring, so spring field work is likely to be on a delay again this year. If you knew we would have potential to face weather delays like last spring, how would you prepare now?

Dicamba training available online or in person

Dicamba training is available again via either in-person trainings across the state of Iowa or online training. Check the Agribusiness Association of Iowa website for training programs and registration information. Applicators may attend any approved Iowa dicamba training provided by any manufacturer to meet the training label requirement.

As a reminder, any person responsible mixing, loading, applying, or cleaning dicamba application equipment must be a certified and licensed private pesticide applicator or commercial pesticide applicator in the state of Iowa and must attend a dicamba training prior to handling the product each growing season. Iowa certified handlers and other employees cannot handle these products.

Corn and soybean fungicide updates

Two articles were recently published to our ICM News that you may find useful:

Are you keeping an eye on your stored grain?

In late December, we received our first report of grain already beginning to spoil in a grain bin. With a lot of grain going into bins wetter than we'd like, it's important to monitor it regularly to be sure it is still in good condition. Beyond aerating the grain when it goes in the bin in the fall, it may also be necessary to aerate periodically throughout the winter to keep the grain cool and avoid hot spots. Read more tips on monitoring and managing grain through the winter in the ICM Blog article "Is your grain in the bin going out of condition?"

Summary of 2019 insecticide evaluations for soybean pests

Erin Hodgson has released her soybean pest insecticide evaluations for 2019. This year, in addition to evaluations on aphid control, she has included evaluations of insecticides for control of Japanese beetle and soybean gall midge. Read more about the evaluations here.

This yellow book is available to download in our ISU Extension and Outreach Store
here. There are a limited number of hard copies available, so please email me if you are interested in one.

Is soybean cyst nematode (SCN) costing you?

Greg Tylka recently published an ICM News article with data from an experiment in soils with relatively moderate levels of soybean cyst nematode (SCN) demonstrating significant yield loss from their activity in both susceptible soybean varieties AND those with the PI88788 resistance. These experiments demonstrated the serious potential of SCN to overcome the PI88788 resistance in soybean varieties and cause yield loss in our fields. Read more about this experiment and Greg's take home points here.

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Iowa State University Extension and Outreach does not discriminate on the basis of age, disability, ethnicity, gender identity, genetic information, marital status, national origin, pregnancy, race, religion, sex, sexual orientation, socioeconomic status, or status as a U.S. veteran. (Not all prohibited bases apply to all programs.) Inquiries regarding non-discrimination policies may be directed to the Diversity Officer, 2150 Beardshear Hall, 515 Morrill Road, Ames, Iowa 50011, 515-294-1482, All other inquiries may be directed to 800-262-3804.

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