Last year was a year full of disagreement and hostility between many, involving the use of dicamba POST across thousands of acres in the United States and South Dakota. These disagreements across the United States and South Dakota were between farmers, farmers and Companies, farmers and University Weed Scientist, Companies and University Weed Scientist, Companies and Regulatory Agencies and the Non-Ag public against farmers and companies.
When precision agriculture comes into a conversation a few questions arise. Three of those questions might be: What is precision agriculture? How does precision agriculture make our farm more profitable? What do I do with all this data?
The South Dakota Department of Agriculture adopted the 2018 federal label for the dicamba herbicides: XtendiMax, FeXapan and Engenia. There are substantial changes from the 2017 label-especially in regards to weather.
The South Dakota Department of Agriculture has labeled Engenia, Fexapan, and Xtendimax for postemergence use on Xtend “dicamba tolerant” soybeans for the 2018 growing season. There are several changes to the label over last year.
SDSU Extension conducted a study during the 2016 growing season at five Eastern South Dakota sites to evaluate the effects of added N fertilizer (as urea) on soybean yields. The study was established at the SDSU Northeast Research Farm and four on-farm cooperators’ fields in Clark, Kingsbury, and Minnehaha (2 sites) counties.
Crop performance testing results are released annually through the activities of SDSU Extension and the South Dakota Agricultural Experiment Station at SDSU.
Soybean harvest is nearing as most, if not all, soybeans have turned color or dropped leaves. Fall time is the best time of year to sample and test the soil for soybean cyst nematode (SCN), the number one silent yield robber of soybean.
A new soybean virus called Soybean vein necrosis virus (SVNV) was detected in South Dakota soybean fields in Davison and Union counties. Symptomatic plants were sporadic and found along the field borders. Infected plants showed mild to moderate severity.
A few fields scouted last week had soybean plants dropping leaves prematurely. Upon checking these plants, they were found to be infected with charcoal rot. Areas in a field with plants droppings leaves earlier than normal should be scouted to rule out diseases such as charcoal rot, brown stem rot, or sudden death syndrome.
Alfalfa mosaic virus-like symptoms were found at a very low incidence in a few soybean fields scouted last week. Leaves from the potentially infected plants were subjected to laboratory test and were confirmed to be positive for Alfalfa mosaic virus (AMV).