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The Source for Iowa Crop Production News

Don’t Miss the State Fair Weed ID Contest

7/29/2014 - Show the world how well you know your weeds!

Corn Yield Predictions

7/25/2014 - With corn pollination underway and in some case near completion many agronomists and farmers are now beginning to think about what corn yields will be. Here, results are presented from project using Hybrid-Maize to forecast yield potential at the end of the year.

Resilient Ag Conference Now Open to Crop Advisors and Farmers

7/25/2014 - Crop Advisors can earn continuing education credits for CCA certification through in-person and online attendance of the Resilient Agriculture Conference, August 5-7, in Ames, Iowa.

PrecisionAg Big Data Conference: Managing Your Most Elusive Farm Asset is set for August 25, 2014

7/22/2014 - Iowa State University Extension and Outreach, in partnership with national precision ag leaders and Meister Media, will hold an Ag Big Data conference on August 25, 2014 on the ISU campus.

Corn Nitrogen Rate Calculator Update

7/22/2014 - The Iowa N response database in the Corn Nitrogen Rate Calculator was recently updated. There are now 246 trials for corn following soybean and 133 trials for corn following corn.

Mid-Season Update on Fungicides and Corn Diseases

7/17/2014 - Parts of rural Iowa are abuzz about fungicide use to manage some emerging diseases.

Mid-Season Soybean Diseases Out in Full Force: How to Send a Sample to ISU Diagnostic Clinic

7/15/2014 - Mid-season soybean samples can be sent to the ISU Plant and Insect Diagnostic Clinic for evaluation.

Northern Leaf Blight Prevalent in Iowa

7/14/2014 - Northern corn leaf blight (NCLB) has been reported in numerous fields in Iowa.

Grasshopper Activity Observed

7/11/2014 - Grasshopper activity has been noted this week in Iowa. These insects feed on grasses and weeds, and can become field crops pests.

July Spray Applications

7/10/2014 - Sprayers around the state are poised for post-emergence herbicide application as soil dries in soybean fields and mid-season applications of fungicide and/or insecticide.

Controlling Large Weeds – Do You Feel Lucky?

7/7/2014 - The principles that apply to managing large waterhemp in soybean can be applied to control of other weeds larger than specified herbicide labels.

Fungicide Thoughts for 2014 Season

7/7/2014 - Based on all the rainfall and wet soils this is shaping up to be a big year for fungicide applications, so just a few thoughts for guys “on the fence” and trying to decide whether to spray or not.

Assessing Crop Damage from Wind, Hail and Flooding

7/2/2014 - Storm damage to both corn and soybean crops range from extensive defoliation to root lodging. In the coming week or two, damaged crops should be assessed to determine extent of damage.

Risk of Sudden Death Syndrome Increasing with Rains

7/2/2014 - Similar to last year, this year’s rain is triggering an increase risk in sudden death syndrome (SDS) developing. Unlike last year, most of the soybean crop was planted before the bulk of the rains started which further increases the risk of SDS.

Managing White Mold in Soybean

7/2/2014 - White mold development is favored by cool, cloudy, wet, humid weather at flowering. The disease is more problematic in soybeans in high-yield environments where high plant populations, narrow row spacing, and an early-closing canopy are commonly used.

Forage and Cover Crop Considerations for Delayed Planting and Flooded Sites

7/1/2014 - Extended periods of rainfall, flooding, hail, or all of the above have producers scrambling for replant or prevented planting options for forage and cover crops.

Estimating Nitrogen Losses in Wet Corn Fields

6/17/2014 - This spring's wet conditions are similar to those in 2011. That year's example could help producers this year avoid nitrate loss in fields that are saturated or have standing water.

Japanese Beetles Emerge in Iowa

6/13/2014 - Japanese beetles should be active in some areas of southeastern and southwestern Iowa this week, and adults are expected to emerge in central and northern Iowa in 7-14 days if warm temperatures continue.

Southeast Research and Demonstration Farm Spring Field Day and CCA Credit Opportunity

6/12/2014 - A June 26 field day tour at the Southeast Research and Demonstration Farm offers an opportunity to learn more about soil and water, crop and pest management while earning CCA credit.

Earn CEUs and Improve Your Knowledge of Phytophthora and Pythium

6/12/2014 - Understanding pathogens such as oomycetes that affect crops is key to managing disease and reducing losses.

SCN Females Now Apparent on Infected Soybean Roots

6/11/2014 - The soybean cyst nematode (SCN) remains a serious cause of soybean yield loss in Iowa and the Midwest. Checking for swollen SCN females is an effective way to scout for the presence of this pest. SCN females recently have been found on soybean roots in southeast Iowa, indicating that now is a good time to start checking fields for the presence of SCN.

Weed Science Field Day

6/6/2014 - A upcoming weed science field day will cover tillage, conservation tillage and conventional tillage experiments, as well as new herbicides and application techniques.

Corn Rootworm Egg Hatch is Underway in 2014

6/4/2014 - A few areas of Iowa are approaching 50 percent corn rootworm egg hatch, and other areas of the state will be approaching that level in the next two weeks.

Fomesafen Carryover Injury to Corn

6/3/2014 - Fomesafen carryover injury typically only affects two or three leaves on corn, but it can cause stand loss so it needs to be closely monitored.

Managing Potato Leafhoppers in Alfalfa

6/2/2014 - Leafhoppers are persistant alfalfa pests every growing season, making it time to think about assessing alfalfa stands.

Stalk Borers Are Migrating to Corn

5/30/2014 - Scouting for migrating larvae in corn should begin now to make timely treatment decisions.

Early Season Soybean Replant Decisions

5/22/2014 - This article provides a step-by-step process to use while making soybean replanting decisions.

Imbibitional Chilling and Frost Damage to Corn and Soybean Seedlings

5/17/2014 - Iowa's freezing and near-freezing temperatures this week are causing concern of inbibitional chilling for corn and soybean seeds that have not germinated yet.

Black Cutworm Scouting 2014

5/16/2014 - Producers should be looking for black cutworm larvae. Use this information as you scout your fields.

Palmer Amaranth is Up and Growing

5/12/2014 - Producers should closely monitor fields this spring to manage the spread of Palmer amaranth, which was confirmed in Iowa in late 2013.