Weather Favors Development of Soybean Diseases
Tue, July 15, 2014
By Matthew Wilde, Iowa Soybean Association Senior Writer
Soybean specialists urge farmers to be on the lookout for white mold, and be prepared to combat the disease. Development is bolstered by wet, cool, cloudy and humid weather at flowering.
With most soybeans just starting to or about to reach the R1 (flowering) stage, experts suggest farmers spray fungicides now in fields with a history
of white mold. Read the full article
Managing White Mold in Soybeans in the Great Lakes Region
Wed, July 2, 2014
Farmers in the Great Lakes region may be concerned about white mold in soybeans in 2014 and how to properly manage this disease.By Martin Chilvers, Michigan State University Extension, Department of Plant, Soil and Microbial Sciences; Kiersten Wise, Purdue University; Damon Smith, University of Wisconsin; Carl Bradley, University of Illinois; and Daren Mueller, Iowa State University
White mold, also called Sclerotinia stem rot, is a disease caused by the fungus Sclerotinia sclerotiorum
. It is not common every year in in the Great Lakes region, but farmers that have battled the disease in the past will want to assess the risk of white mold development as soybeans approach flowering, or growth stage R1 – plants have at least one open flower at any node. Read the full article
Farmer Takes Action Against Palmer Amaranth
Wed, July 2, 2014
By Matthew Wilde, Iowa Soybean Association senior writer.
Iowa Soybean Association (ISA) member Roger Hargrafen is doing everything right when it comes to fighting a herbicide resistant weed relatively new to Iowa.
And his Muscatine County neighbors and all farmers should thank him for it, Iowa State University (ISU) Extension and Outreach weed and crop specialists said last week.
Hargrafen discovered Palmer Amaranth — a tough, yield-robbing weed native to the southwest United States capable of decimating row crops — in a 5-acre section of a soybean field last September. ISA and ISU Extension, which verified the infestation, are working together to provide information to growers to mitigate its spread. Read the full article