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Category Posts for Wamishe, Yeshi

30
Jun
2016
Fungicides for common rice diseases in Arkansas: Rates and compositions
Author: Yeshi Wamishe, Extension Rice Plant Pathologist

By Yeshi Wamishe, Extension Rice Pathologist Since varietal genetic resistance is not always available for all diseases, cultural management strategies are highly recommended. However, in some instances, use of fungicides to reduce disease pressure has become inevitable in our rice production system.  To benefit the most from fungicide application the following pointers are suggested: Know […]

27
Jun
2016
Sheath blight rice disease showing up: Start scouting
Author: Yeshi Wamishe, Extension Rice Plant Pathologist

By Yeshi Wamishe, Extension Plant Pathologist, and Jarrod Hardke, Extension Rice Agronomist If your rice crop has reached or is past green ring (internode elongation) it’s time to start scouting for sheath blight.  Conditions that favor sheath blight are susceptible cultivars, high N rates, dense stands with thick canopies, and field history of sheath blight […]

21
Jun
2016
Rice blast active in Arkansas: Start scouting
Author: Yeshi Wamishe, Extension Rice Plant Pathologist

By Yeshi Wamishe, Extension Rice Pathologist, and Jarrod Hardke, Extension Rice Agronomist Most rice in Arkansas is near or well past internode elongation (joint movement).  Except for a few cases of seedling disease complexes and hydrogen sulfide toxicity, until now, blast and sheath blight rice diseases have been relatively quiet in Arkansas.  Today (June 20, […]

18
Jun
2016
Arkansas Rice Update 6-18-16
Author: Jarrod Hardke, Rice Extension Agronomist

Arkansas Rice Update Dr. Jarrod Hardke, Scott Stiles, & Dr. Yeshi Wamishe June 18, 2016  No. 2016-14                www.uaex.edu/rice Crop Progress “It’s not so much the heat that’ll get you, but the humidity.”  It may get old hearing it said, but it doesn’t make it any less true.  On […]

03
Jun
2016
Start scouting rice for hydrogen sulfide toxicity
Author: Yeshi Wamishe, Extension Rice Plant Pathologist

By Yeshi Wamishe, Extension Rice Pathologist, and Jarrod Hardke, Extension Rice Agronomist With temperatures increasing, early planted rice will soon reach the reproductive stage. In fields with a history of hydrogen sulfide toxicity (also referred as autumn decline or akiochi), draining the flood and drying the field for a few days before midseason (DD50 for […]

28
May
2016
Arkansas Rice Update 5-28-16
Author: Jarrod Hardke, Rice Extension Agronomist

Arkansas Rice Update Dr. Jarrod Hardke, Mike Hamilton, & Dr. Yeshi Wamishe May 27, 2016  No. 2016-11                www.uaex.edu/rice Crop Progress Beware the Ides of Midseason.  Now that it’s time to fertilize and flood, it seems the weather is going to start working against us.  More on that in […]

24
Mar
2016
Strike the right balance to reduce rice diseases in 2016
Author: Yeshi Wamishe, Extension Rice Plant Pathologist

By Yeshi Wamishe, Extension Rice Pathologist Matching variety with field: Disease management starts long before going to the field to plant rice. To maximize productivity with minimum risk, knowing the history of your field and using the right variety for the field is essential.. Often this may mean planting more than one or two varieties on […]

23
Mar
2016
Causes of seed rots and seedling diseases in rice
Author: Yeshi Wamishe, Extension Rice Plant Pathologist

By Yeshi Wamishe, Extension Rice Pathologist CAUSES OF SEED ROTS Seeds from storage may carry seed rotting microbes. These microbes may have been carried into the storage from fields in the previous season. Moreover, secondary infection can also be caused from soil or water. Certain environmental conditions such as puddled spots also favor seed rotting. […]

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 […]

21
Aug
2015
Arkansas Rice Update 8-21-15
Author: Jarrod Hardke, Rice Extension Agronomist

August 21, 2015                         No. 2015-25 Dr. Jarrod Hardke, Dr. Gus Lorenz, Scott Stiles, & Dr. Yeshi Wamishe Crop Overview Harvest continues to pick up speed in the southern half of the state.  Unfortunately yield reports have yet to pick up along with it.  The general consensus seems to be that yield numbers are running in […]