Southern Rust Found in Central Iowa
With southern rust being reported in Iowa fields, producers and agronomists must be able to correctly distinguish between it and common rust, especially if fungicide decisions are being made.
Integrated Crop Management News
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Insurance Coverage for Drought-Damaged Crops
By William Edwards, Department of Economics
Nearly 90 percent of the corn and soybean acres in Iowa are covered by multiple peril crop insurance. Drought damage is an insurable loss under these policies. Producers should consult with their crop insurance agents before harvesting or destroying any drought-damaged crops, however.
Alternatives for Drought-damaged Corn - Grain Crop or Forage
By Stephen Barnhart and Roger Elmore, Department of Agronomy
Alternatives for Drought-damaged Soybeans - Bean Crop or Forage
By Stephen Barnhart and Andy Lenssen, Department of Agronomy
Scout for Twospotted Spider Mites This Summer
A few places in Iowa and surrounding states have reported heavy twospotted spider mite populations in soybeans, and the first reports of spider mites in Iowa corn started this week.
Corn Yield Potential Estimates Amidst a 'Perfect Storm'
By Roger W. Elmore, Department of Agronomy
New Safety Guidelines Developed for Two-tank Anhydrous Ammonia Wagons
By Mark Hanna, Department of Agricultural and Biosystems Engineering
Size and capacity of farm equipment keeps getting larger and fertilizer equipment is no exception. Each year in Iowa approximately a billion pounds of nitrogen is applied as anhydrous ammonia. As equipment has gotten larger, many dealers are now using multi-tank systems with two anhydrous ammonia tanks mounted on to a single wagon running gear.
Water Stress in Corn: Estimating from Stress Degree Days (SDD)
Stress in District(s) 5 across the Corn Belt prompts concern of a U.S. corn yield that is below trend.
Do You Need to Treat for Adult Corn Rootworm This Year?
With adult corn rootworm becoming active in Iowa before silking this year, extension entomologists recommend producers keep an eye on fields to protect yield.
Recent Status of Bean pod mottle virus Insect Vectors in Iowa
Maps with data from soybean fields in all 99 Iowa counties show that population densities of bean leaf beetle and other insect vectors of Bean pod mottle virus were relatively low in 2010 and 2011.