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Category Posts for Disease

25
Jul
2014
Arkansas Rice Update 7-25-14
Author: Jarrod Hardke, Rice Extension Agronomist

July 25, 2014                              No. 2014-20 Dr. Jarrod Hardke, Dr. Gus Lorenz, Dr. Bob Scott, & Dr. Yeshi Wamishe Crop Progress The weather and its effect on the rice crop is becoming a daily roll of the dice.  The up and down temperatures are playing games and the rice doesn’t seem to like it.  Last week, […]

23
Jul
2014
Disease alert: Rice blast throughout Arkansas
Author: Yeshi Wamishe, Extension Rice Plant Pathologist

The weather this season is favorable to cause a blast epidemic. Get ahead of the disease! Rice blast pathogen spores can easily move across a field and/or from a field to another by wind. Clay, Randolph, Lawrence, White, Prairie, Lonoke, Woodruff, Monroe and Arkansas Counties have all had reports of rice blast largely on Jupiter followed […]

21
Jul
2014
Rice research verification program update for July 18, 2014
Author: Ralph Mazzanti, Rice Research Verification Coordinator

South Arkansas: The cooler temperatures during heading and grain fill should help yield and quality. On the other hand, rainfall and overcast weather can alter flowering and is a favorable environment for disease.  The Jefferson County field is at ½” internode and was treated for FAW numbering anywhere from 8-25 per sq. ft.  RSB are […]

18
Jul
2014
Arkansas Rice Update 7-18-14
Author: Jarrod Hardke, Rice Extension Agronomist

July 18, 2014                              No. 2014-19 Dr. Jarrod Hardke, Dr. Gus Lorenz, Dr. Yeshi Wamishe, & Scott Stiles Crop Progress Record-setting low temperatures are the story of the week.  Records were set both for nighttime lows and daytime highs.  Combined with more rain and flash flood warnings it hardly feels like the middle of July in […]

18
Jul
2014
Arkansas Corn and Grain Sorghum Weekly Update – July 18, 2014
Author: Kevin Lawson, Program Associate - Corn & Grain Sorghum Verification

Corn and Grain Sorghum Research Verification – Kevin Lawson (Corn & GS Verification Coordinator) Corn fields continue to progress to the finish.  Some of the fields are about two weeks away from irrigation termination.  With the rain entering the state, we may be down to just one more irrigation!  Southern rust has been found in […]

18
Jul
2014
Soybean research verification program weekly update – July 18, 2014
Author: Chris Grimes, Program Associate - Soybean/Wheat Verification Coordinator

Rainfall was more abundant in the southern part of the state this week. All but three of the fields in the program have reached the reproductive stage and are enjoying the mild conditions this week. Irrigation will be top priority from this point forward due to growth stage and moisture requirements. Most of the fields […]

18
Jul
2014
Southern rust update and other corn diseases
Author: Travis Faske, Extension Plant Pathologist

A low level of southern rust was detected earlier this week in Craighead, Lee, Jefferson, Phillips, and Woodruff counties bringing the total county count to eight (Fig. 1). The highest disease severity was similar to that reported earlier this week with 50 to 100 pustules per plant on a few plants in a single area […]

14
Jul
2014
Corn disease alert: Southern rust confirmed in Southern and Northern Arkansas
Author: Travis Faske, Extension Plant Pathologist

Southern rust was detected last week (July 7, 2014) near McGhee, Eudora, and Rector, AR.  This was the first report of 2014 season and one week earlier than 2013, when it was found near Caraway.  In the south, hot spots had ~ 50 pustules/ leaf (Fig. 1) on a few leaves in the field.  The […]

11
Jul
2014
Arkansas Rice Update 7-11-14
Author: Jarrod Hardke, Rice Extension Agronomist

July 11, 2014                              No. 2014-18 Dr. Jarrod Hardke, Dr. Gus Lorenz, Dr. Bob Scott, & Dr. Yeshi Wamishe Crop Progress Frank Sinatra had “the world on a string.”  If he were in charge of the weather these days, it would be a Yo-Yo string he had ahold of.  Up and down we go, temperatures and […]

11
Jul
2014
Fungicides for major rice diseases: Timing, rates, and contents
Author: Yeshi Wamishe, Extension Rice Plant Pathologist

Fungicides need to be applied at the right rate and time to provide the best benefit in your well managed fields. Moreover, foliar fungicides need to be mixed with adequate amount of water to provide good coverage.                                     […]