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Category Posts for Disease

09
Nov
2016
Reviewing the 2016 Arkansas Rice Season
Author: Jarrod Hardke, Rice Extension Agronomist

Planting and Progress The 2016 rice season began extremely early as producers started planting as early as March 7th.  From there, a surprising number finished planting by April 1 and many more in the early part of April – in Figure 1, Week 15 is equivalent to April 15th.  For historical perspective, planting progress trailed […]

02
Nov
2016
Target spot of soybean: What do we know?
Author: Travis Faske, Extension Plant Pathologist

By Travis Faske, Extension Plant Pathologist Historically, target spot (TS) of soybean has been a minor disease in Arkansas and the Mid-South.  This disease would develop in the lower canopy with one to a few lesions per leaf with little or no further development.  Since 2014, this disease has been observed more frequently and during […]

27
Oct
2016
Reactions of Arkansas rice cultivars to major diseases
Author: Yeshi Wamishe, Extension Rice Plant Pathologist

By Yeshi Wamishe, Extension Rice Pathologist Some rice diseases are more prevalent than others causing significant yield or quality losses. Often the major culprit for yield and/or quality losses in a certain field may just be one or a couple of diseases. Knowledge on susceptibility levels of your cultivars to diseases and your field history […]

04
Oct
2016
The 2016 soybean crop: Record yields for a few; lower yields for many
Author: Jeremy Ross, Extension Agronomist - Soybeans

By Jeremy Ross, Extension Soybean Agronomist So far, this has been a year of highs and lows.  As of today, I have certified six soybean fields for the Grow for the Green Yield Contest over 100 bu/ac.  A new state record soybean yield was set twice within the last two weeks.  The first was Martin […]

09
Sep
2016
Soybean Research Verification Program Update for Sept. 9, 2016
Author: Chad Norton, Soybean/Wheat Verification Program Coordinator

By Chad Norton and Chris Elkins, Soybean Research Verification Program Coordinators The season is winding down quickly as another field had irrigation terminated and two more will irrigate for the last time this weekend. Flipping the calendar page to September has really sped maturation up.  Several fields should be harvested in the next week.  None […]

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, […]