The bulk of our soybeans are going to outrun the current bollworm flight. Over the last 5-7 days we are getting reports of above threshold numbers of bollworms in soybeans. This is pretty much restricted to the soybeans that are R2-R4. We
The soybean disease situation continues to change throughout MS depending on growth stage situations in each field. Over the past week root diseases have been commonly observed. The first soybean rust of the season was observed in southwestern MS on kudzu.
Limited soybean diseases have occurred throughout the MS soybean production system. Observations of Septoria brown spot and taproot decline have been quite common this season. Lesions that result from herbicide injury have also been commonly observed, but should not be cause for concern.
Over the past week calls have started to be received regarding the automatic fungicide application in soybean. On-farm, large plot trials were conducted during 2015 and 2016 to assess the benefit of several different fungicide products and to reevaluate the automatic application timing. At present, we believe that a mixed mode of action fungicide, or one that provides more than one mode of action would be more beneficial than the stand-alone strobilurin (QoI) fungicide application that has become popular over the past decade.
In 2009 Redbanded stink bugs (RBSB) were treated in numerous areas of the state but numbers crashed in 2010. In 2013 there were a few fields treated and then they essentially were a non-issue until 2016. We have been hearing
Target spot management in soybean production systems remains a hot topic going into the 2017 season. The environment that occurred during late July and early August 2016 made us respect a disease that is often “out of sight and out of mind”. Fungicide data from two efficacy trials conducted during 2016 are included in this blog post.
Target spot was one of the main diseases that occurred during 2016. Normally a disease of little consequence in soybean as well as cotton, severe target spot outbreaks were observed in both crops. Making decisions regarding the occurrence of target spot during 2016 are difficult since the environment during key plant growth stages was the most important ingredient for the occurrence of target spot last season.
The MSU OVT soybean locations were rated for disease during the 2016 season. Multiple diseases were rated at multiple locations. In the past, Cercospora leaf blight and frogeye leaf spot have been the two main diseases rated. In 2016, Septoria brown spot as well as target spot were included in the ratings.
A Maturity Group IV and V variety trial was conducted in Verona, MS at the NMREC during the 2016 season. Yield and disease data are included in the attached report for all entries contained in the trial (RoundUp, Conventional and LibertyLink).
On behalf of the Mississippi State University Extension Service, we would like to cordially invite you to attend the 2016 Row Crop Short Course to be held at the Cotton Mill Conference Center near the campus of Mississippi State University
On behalf of the Mississippi State University Extension Service, we would like to cordially invite you to attend the 2016 Row Crop Short Course to be held at the Cotton Mill Conference Center near the campus of Mississippi State University
The On-Farm Soybean Variety Demonstration Program is conducted using a set of varieties with proven performance. These varieties are grown in a production setting on various soil types and management systems around the state. Demonstration sets for both maturity group
The cultivars contained in the Mississippi State University Official Variety Trial (OVT), as well as a few added cultivars, were field-evaluated for their susceptibility/resistance to stem canker. Trials were conducted in Stoneville with toothpick-inoculated plants during the 2016 season. Tables contain the average ratings (on a 0-9 scale) as well as an assessment of resistance to stem canker (R, MR, MS, S) based on the ratings conducted.
On behalf of the Mississippi State University Extension Service, we would like to cordially invite you to attend the 2016 Row Crop Short Course to be held at the Cotton Mill Conference Center near the campus of Mississippi State University
Foliar diseases continue to be observed throughout the MS soybean production system. Cercospora blight, frogeye leaf spot and target spot have been commonly observed. Soybean rust continues to be observed at low levels in areas where the disease has occurred following the rainfall received over the last month.
Following the rainfall received over the past 10-14 days soybean diseases have greatly increased. Septoria brown spot, target spot and soybean rust (in isolated geographic locations) have all increased throughout MS.
Over the past week, following the excessive rainfall received through most of the soybean production area, several calls have been received regarding soybean seed sprouting in the pods.
Over the last few weeks we have been getting more and more calls about redbanded stink bug in soybeans. Redbanded stink bugs (RBSB) are voracious seed feeders, infest fields later, and are more difficult to control than greens, southern greens,
In addition to the current foliar disease situation, root diseases are becoming widely observed throughout the MS soybean production area. Two of the more commonly observed diseases over the past several weeks have been taproot decline (TRD) and root-knot nematode foliar symptoms as a result of galling. Scouting for the presence of root-knot nematodes at this point in the season will aid in decisions for next season’s crop.
Foliar diseases continue to be observed throughout the Mississippi soybean production system. Low levels of frogeye leaf spot, Septoria brown spot and target spot have been frequently observed following the rainfall of the past two weeks. The first soybean rust on soybean was observed on Friday in Rankin County, MS on a single leaf in a field of R4/R5 soybeans.
Bollworm: We have had numerous reports of bollworm (soybean podworm corn earworm) moths being flushed and small larvae in cotton and soybeans over the last couple weeks. This past week seemed to be the turning point in soybean. Nearly anyone with
Save for the appearance of a few common foliar diseases, the soybean disease situation remains fairly quiet. Septoria brown spot appears to be the most commonly occurring foliar disease. Scout fields for the presence of nematodes as well as stem diseases now to aid in next season’s decisions.
Over the last couple weeks we have begun to get numerous calls about kudzu bugs infesting soybeans. Call are coming from all over the state. We no longer keep up with county level infestations but its safe to say they
Over the past several years, phytotoxicity has continued to be an important topic of conversation. Phytotoxicity can ultimately result following the application of numerous fungicide products. The specific symptoms associated with phytotoxicity can appear as interveinal chlorosis (either mild, moderate
The North Mississippi Research and Extension Center Field Day is scheduled for August 11, 2016 from 8 am to 1:30 pm with lunch provided.
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