Links to these articles are strongly encouraged. Articles may be republished without further permission if published as written and if credit is given to the author, Integrated Crop Management News, and Iowa State University Extension and Outreach. If articles are used in any other manner, permission from the author is required.
Damage to soybeans from the soybean cyst nematode (SCN) was less than expected for a drought year. But reproduction of SCN on susceptible and resistant soybean varieties was surprisingly high in 2012. This article discusses the situation and its implications for 2013 and beyond.
Farmers should consider soybean aphids a potential pest for 2013. A recently updated Iowa State University publication, Soybean aphid-resistant varities for Iowa, will assist farmers in adopting new management techniques, possibly reducing their need for a foliar insecticide.
The Iowa State University website soybeancyst.info is a clearinghouse of practical information about the biology, scouting and management of the soybean cyst nematode (SCN). The website recently has received an overhaul of appearance and numerous new pieces of information have been added.
By Mark Licht and Jim Fawcett, ISU Extension and Outreach
Updates on the latest crop production products and recommendations are the featured topics at meetings sponsored by Iowa State University Extension and Outreach at two locations in December: Iowa City on Dec. 5 and Ames on Dec. 6.
These meetings are an excellent opportunity for ag input providers to meet with extension specialists and hear information about nematodes on corn, P and K moist soil tests and corn rootworm management, as well as other topics.
A series of meetings in November and December will address problems associated with herbicide resistant weeds.
Profitable soybean yields can be produced in fields infested with the soybean cyst nematode (SCN) by growing SCN-resistant soybean varieties. SCN-resistant soybeans can keep SCN population densities from increasing and produce high yields.
Farmers are encouraged to wait until soil temperatures remain below 50 degrees Fahrenheit before applying anhydrous ammonia (NH3) fertilizer this fall. With the record early harvest this year, officials with the Iowa Department of Agriculture and Land Stewardship and Iowa State University (ISU) Extension and Outreach said that waiting can help reduce nitrogen loss and better protects the environment.
Fall is a perfect time to sample fields for the presence of the soybean cyst nematode (SCN). Knowing if SCN is present and at what population densities will increase the chances of profitable soybean production in 2013.
The soybean cyst nematode (SCN) has been a particularly damaging pest of soybean in the 2012 growing season in Iowa and throughout the Midwest. Knowledge of the biology and management of SCN is key to continued profitable soybean production in infested fields. ISU and the Iowa Soybean Association have recently released the revised, second edition of the Soybean Cyst Nematode Field Guide.
By Greg Brenneman, ISU Extension and Outreach
So far this harvest, a lot of corn and soybeans have gone into storage at temperatures in the 70s and some 80s. With grain this warm, moisture migration and spoilage can occur quickly, even with fairly dry grain. With forecast highs in the 50s with lows in the 30s for this weekend and next week, grain bin fans should be running by the end of the week to get stored grain cooled down as soon as possible.
