SDSU Extension publishes the South Dakota Pest & Crop Newsletter to provide growers, producers, crop consultants, and others involved in crop production with timely news pertinent to management of pests, diseases, and weeds in South Dakota.
All Soybean Content
SDSU Extension will host Annie's Project in 6 sessions on Jan 7, 14, 21, 28; Feb 4 and 11, beginning at 5:30 PM CDT at the Clark Golf Club. (800 N. Idaho St., Clark, SD 57225).
SDSU Extension will host an annual forum on November 26 at 9 AM CDT at McCrory Gardens (631 22nd Ave., Brookings, SD 57007).
The chances of a wet October increased with the latest climate outlook update, released on September 30, 2019. In the first few days of the month, rain or snow has scattered across much of the state. There hasn’t been a heavy rain or snow event this month. The outlook shows odds leaning towards much of the same pattern in the weeks ahead.
This year, we had a slow soybean planting due to high rainfall in spring. This was followed by below normal temperatures for most of the growing season, which delayed soybean growth and development. This brings up a question about what these low temperatures will do to soybeans that are in the field.
No-till crop production in South Dakota is on the rise. Marestail is a native plant to the United States and is considered either a winter annual or biennial species that is often difficult to identify at the rosette stage. In the Dakota’s, the Marestail population will germinate in the fall and bolt in the spring.
Kochia is a problem in row crops in North Central South Dakota. New Post-emergent options in corn and soybean have helped alleviate Kochia competition from many fields, but these herbicide options shouldn’t be completely relied upon for a long-term plan for control.
This week we received a report of insects infesting a soybean field. However, they weren’t insects that we generally think of when the term "soybean insect pests" comes up.
September 2019 has been pleasantly warmer than usual, and our crops need every bit of that warmth to reach maturity before our first frost arrives. Fortunately, temperatures have cooled slightly this week but just to near average for this time of year.
Some portions of soybean fields may show clusters of plants yellowing while the rest of the field is still green. One of the factors that could lead to soybean plants showing early yellowing in clusters is soybean cyst nematode (SCN).