Soil Management Clinic Offered Sept. 14
Understanding and implementing successful soil management practices is the focus of the Iowa State University Soil Management Clinic on Sept. 14.
Integrated Crop Management News
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Crop Minute - Aphids in Corn
Erin Hodgson, ISU Extension entomologist, is monitoring the rapid aphid infestation in Iowa corn fields. During the weekly crop minute, she tells where the aphids have been found and what justifies treatment at this point in the growing season.
Reduce Risk of Mycotoxin Contamination by Scouting Fields for Ear Rot
Corn fields should be scouted for ear rot and associated mycotoxin contamination. Corn damaged by hail is at risk of ear rots, as is corn that has experienced hot, dry weather with occasional rain - conditions that favor Aspergillus and Fusarium ear rot development.
Survival of the Goss's Wilt Bacterium and Management Implications
Understanding some characteristics of the bacterium Clavibacter michiganensis subsp. nebraskensis that causes Goss's wilt are useful as producers make management decisions.
Corn Aphids Explode
It seems aphids are colonizing corn later in the summer and are building up to striking levels. They can be found at the base of the stalk, around the ear and sometimes building up colonies above the ear leaf.
Crop Minute - Goss's Wilt
Alison Robertson, ISU Extension plant pathology, is monitoring the development of Goss's wilt in Iowa corn fields. During the weekly crop minute, she talks about the steady increase, no known rescue treatment and how to identify Goss's wilt.
CREP Wetland Tour near Nashua Aug. 24
By John Lundvall, Iowa Learning Farms
Iowa Learning Farms (ILF) and the Iowa Department of Agriculture and Land Stewardship (IDALS) are hosting a tour of a Conservation Reserve Enhancement Program (CREP) wetland near Nashua in southeast Floyd County on Wednesday, Aug. 24, starting at 5:30 p.m.
Weather Impact on Midwest Corn 2011
Shallow kernels, missing kernels, and tip back are common in field corn this year. A few days of temperatures exceeding 93 F are "bad" for corn production, but consecutive days of the high temperatures are especially bad. When the heat comes as silking gets underway the negative aspect is increased.
Will Goss's Wilt be the "Disease of the Year" in 2011
Reports of Goss's wilt have been coming in hard and fast this past week. The disease appears to be widespread north of I-80. Despite the hot, dry weather, the disease has progressed rapidly in the field.
Flood Damaged Crops, Crop Insurance Payments and Lease Contracts
By William Edwards, Department of Economics
Some Iowa corn and soybean producers are facing substantial if not complete crop losses due to flooding. In particular, many acres of crops in the Missouri River Valley have been under water for a month or more this year. Fortunately, nearly 90 percent of Iowa's corn and soybean acres are protected by multiple peril crop insurance.
Crop Insurance