Don't Stop Now!
Keep scouting corn fields. The weather the last two weeks has been favorable to several diseases.
Integrated Crop Management News
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Insecticide and Insecticide-Fungicide Tank Mix Applications in Soybean
Producers have research findings from soybean trials and a simplified economic analysis to consider when deciding whether to make insecticide or insecticide-fungicide tank mix applications to soybeans.
Long Silks?
By Roger Elmore, Department of Agronomy
Very hot days and warm night temperatures the last couple of weeks concern agronomists and corn growers. Unfortunately, this period of hot weather occurred during tasseling and silking. However, the USDA-NASS July 25th Iowa Crops & Weather report indicates that 80 percent of the crop was still in good to excellent condition. Ninety percent of the crop had tasseled and 75 percent silked — both slightly behind last year but ahead of the five-year average.
Japanese Beetle Activity Increases in Iowa
Growers and crop consultants are encouraged to scout corn and soybean fields for Japanese beetles this year.
Is Foliar Fertilization Useful to Supplement Pre-plant Fertilization
Foliar fertilization should be viewed as a complement of pre-plant fertilization or a 'rescue' treatment.
Aridity Index, a Guide to Rain and Temperature Impact on Corn
A week-by-week index showing relative crop risk according to the interaction of temperature and precipitation has proven to give a realistic picture of localities with poor and areas with better than usual crop yield.
Begin Scouting for Sudden Death Syndrome in Soybean
The first symptoms of the disease are usually found on more compacted and low areas of the field and seen on the leaves of infected plants as scattered, yellow spots between leaf veins.
Crop Minute - Scouting Corn Fields
In the July 18, 2011 crop minute, Alison Robertson, ISU Extension plant pathologist, tells producers to begin scouting corn as tasseling and silking starts. She says to target scouting to fields with leaf diseases, low-laying fields and to fields planted with hybrids having a greater susceptibility to leaf diseases. She also gives advice on when to make fungicide applications.
Corn and “a Big Long Heat Wave on the Way”
By Roger Elmore and Elwynn Taylor, Department of Agronomy
Crop Damage Meeting July 19 at Marshall County Extension Office
The Marshall County extension office is hosting a July 19 crop damage meeting. ISU Extension and Centrol of Iowa agronomists, ISU Extension plant pathologist, FSA representative and crop insurance specialists will present and answer questions.