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Category Posts for Disease

23
Dec
2015
2015 Soybean Update now available
Author: Jeremy Ross, Extension Agronomist - Soybeans

By Jeremy Ross, Extension Soybean Agronomist Hundreds of soybean varieties are commercially available to growers in Arkansas. Varietal performance, including yield, varies according to location, environmental adaptability to soils, maturity, lodging, height, disease and nematode resistance, and herbicide and chloride sensitivity. This information listed in the Soybean Update is largely derived from the University of […]

02
Dec
2015
2016 Arkansas Corn Quick Facts & 2016 Grain Sorghum Quick Facts now available
Author: Kevin Lawson, Program Associate - Corn & Grain Sorghum Verification

The 2016 Arkansas Corn Quick Facts and the 2016 Arkansas Grain Sorghum Quick Facts are now available.  These publications are a one page (front and back) quick reference guide for University of Arkansas Division of Agriculture Cooperative Extension Service corn and grain sorghum recommendations.  You can find these quick facts under the publication tab of the […]

18
Nov
2015
2015 Arkansas Corn and Grain Sorghum Verification Report
Author: Kevin Lawson, Program Associate - Corn & Grain Sorghum Verification

The 2015 Arkansas Corn and Grain Sorghum Research Verification Program annual report is now available.  You can find the report in the publications tab under the corn and grain sorghum sections.  The 2015 report and past reports from the program are also available at www.uaex.edu/verification The 2015 growing season was the sixteenth year for the Corn and Grain Sorghum Research […]

05
Nov
2015
Field responses of commercial rice cultivars
Author: Yeshi Wamishe, Extension Rice Plant Pathologist

By Yeshi Wamishe, Extension Rice Pathologist Managing rice diseases begins with knowing a cultivar’s level of susceptibility.  The cultivar-by-disease reaction table below shows the disease information gathered from fields across Arkansas and some from other rice-producing states in The South.  Cells with no values do not imply resistance. Fungicides are not the only answer to managing […]

29
Sep
2015
Arkansas Corn and Grain Sorghum Weekly Update – Final Update
Author: Kevin Lawson, Program Associate - Corn & Grain Sorghum Verification

Corn and Grain Sorghum Update – Dr. Jason Kelley (Wheat and Feed Grains Specialist) Corn and grain sorghum harvest is nearly complete with just a few fields in Northeast Arkansas still needing to be harvested.   Corn yields in general were less this year than the last three years, although the last three years have been […]

21
Sep
2015
Soybean rust spreading in Arkansas
Author: Travis Faske, Extension Plant Pathologist

SBR was detected in a few isolated fields within the counties (see below; counties in red are confirmed to have soybean rust) with the area of highest SBR severity was near Pine Bluff.  SBR was not very active until recently, but as the weather cools more spores will be produced from those fields and spread […]

17
Sep
2015
Soybean Research Verification Program Update for September 17, 2015
Author: Chris Grimes, Program Associate - Soybean/Wheat Verification Coordinator

Rainfall amounts were scattered again this week on the verification fields. Irrigation is winding down on the northern fields and has been terminated on the fields in the southern part of state. Insect and disease pressure was low this week in the northern fields and they are not an issue in the southern fields. Please […]

14
Sep
2015
Charcoal rot to blame for yield loss in many soybean fields
Author: Terry Spurlock, Extension Plant Pathologist

By Terry Spurlock, Extension Plant Pathologist, and John Rupe, Professor, Department of Plant Pathology, University of Arkansas The extended period of high heat and little rainfall was favorable for significant stress on soybeans and charcoal rot development during the reproductive stages (Figure 1).  Severe outbreaks of the disease have become evident on mid to late […]

08
Sep
2015
Soybean rust returns to the Mid-South but has yet to be detected in Arkansas
Author: Travis Faske, Extension Plant Pathologist

By Travis Faske, Extension Plant Pathologist Though soybean rust (SBR) has yet to be detected in 2015 in Arkansas, it has returned to the Mid-South.  SBR has been found in several Mississippi counties over the past few weeks with the most recent find occurring just across the MS River (Fig. 1).   Historically, SBR progresses up […]

04
Sep
2015
Soybean Research Verification Program Update for September 4, 2015
Author: Chris Grimes, Program Associate - Soybean/Wheat Verification Coordinator

Rainfall amounts were scattered again this week on the verification fields. Irrigation is still a priority on fields in the north and the remaining fields in the south. The insecticide and fungicide applications last week did a good job on decreasing insect numbers and disease levels. Please refer to information in table for field specifics. […]