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Category Posts for Disease

26
Aug
2016
Soybean Research Verification Program Update – August 26, 2016
Author: Chad Norton, Soybean/Wheat Verification Program Coordinator

By Chad Norton and Chris Elkins, SRVP Coordinators All fields received surplus rainfall the past couple weeks. Older fields that were R6 or later all have some sprouting in the pods. Initial estimate is 5-7% sprouted. Insects remain at low levels, while diseases have flared, as would be expected given last week’s ideal environmental conditions. […]

25
Aug
2016
Target spot of cotton: Considerations for using a fungicide
Author: Travis Faske, Extension Plant Pathologist

By Travis Faske, Extension Plant Pathologist There have been widespread reports of target spot (TS) on cotton across multiple cotton cultivars along the MS delta region in Arkansas.  Target spots causes the lower leaves in the canopy to defoliate and the percentage of defoliation in some field range from 10 to 75%.  Although there were […]

24
Aug
2016
2016 Arkansas Cotton Update: Target spot of minimal concern
Author: Bill Robertson, Cotton Agronomist

By Bill Robertson, Extension Cotton Agronomist There are times during the season that initial impressions of the crop are not good.  We are at one of those times now.  Plants are showing signs of a good boll load and maturing from being near the end of a long, hard race.  Add target spot and a week […]

19
Aug
2016
Rice disease update: Rain exacerbating late season pressure
Author: Yeshi Wamishe, Extension Rice Plant Pathologist

By Yeshi Wamishe, Extension Rice Pathologist Temperatures have been moderate with frequent rain in this couple of weeks.  Some rice diseases were also in progress. Sheath Blight Sheath blight still continues to move up in untreated fields likely causing some late season damage (Figure 1). You may be seeing heavy production of sclerotia by the […]

17
Aug
2016
Look for root-knot nematode damage in your soybeans now
Author: Terry Kirkpatrick, Professor - Plant Pathology

By Katie Sullivan and Terry Kirkpatrick, Arkansas Nematode Diagnostic Laboratory Look at your soybeans. No, really look at your soybeans. Give that plant a good inspection—and dig it up and look at the roots.  The field in the background of the first photo below is a healthy looking field:  nice and green, even in height, […]

15
Aug
2016
Rice Research Verification Program Update for Aug. 15, 2016
Author: Ron Baker, Rice Research Verification Program Coordinator

By Ron Baker and Ralph Mazzanti, Rice Research Verification Program Coordinators  South Arkansas: With several days of rain in the forecast starting this weekend the harvest will be delayed in Jefferson and Lincoln Counties.  The Phillips County field is approaching 75% heading and (RSB) numbers are extremely low as of now.  Rice stink bugs are […]

13
Aug
2016
Arkansas Rice Update 8-13-16
Author: Jarrod Hardke, Rice Extension Agronomist

Arkansas Rice Update Dr. Jarrod Hardke, Dr. Gus Lorenz, & Scott Stiles August 13, 2016  No. 2016-22                www.uaex.edu/rice Crop Progress Field draining continues at an increasingly rapid pace.  However, there are some fields still just heading as harvest begins.  There have been mostly positive reports from the field […]

11
Aug
2016
Rice Research Verification Program Update for August 8, 2016
Author: Ralph Mazzanti, Rice Research Verification Coordinator

By Ron Baker and Ralph Mazzanti, Rice Research Verification Program Coordinators South Arkansas:  Irrigation termination has started this past week in Jefferson County while Lincoln County will stop pumping next week.  Most fields received some rainfall ranging from 0.65” in Arkansas County to 0.9” in Phillips County.  The fall armyworms (FAW) have diminished and rice […]

11
Aug
2016
Rice disease alert: Bacterial panicle blight and sheath blight on the upswing
Author: Yeshi Wamishe, Extension Rice Plant Pathologist

By Yeshi Wamishe, Extension Rice Pathologist After the hot and dry weather for several weeks, in the last couple of weeks we got rain without a substantial decrease in day or night temperatures. Although it appeared good for rice crop, these conditions seemed to favor the development of bacterial panicle blight and sheath blight. We already […]

05
Aug
2016
Arkansas Rice Update 8-5-16
Author: Jarrod Hardke, Rice Extension Agronomist

Arkansas Rice Update Dr. Jarrod Hardke, Dr. Bob Scott, & Dr. Yeshi Wamishe August 5, 2016  No. 2016-21                www.uaex.edu/rice Crop Progress Draining of fields has begun to increase dramatically throughout the state.  That can only mean one thing – harvest will follow soon behind.  The first commercial production […]