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Category Posts for Disease

11
Feb
2015
Wheat stripe rust update – Feb. 10, 2015
Author: Terry Spurlock, Extension Plant Pathologist

The recent weather has been conducive to stripe rust. Conditions favorable for disease development and spread include morning dew on the leaves, high winds, and nighttime temperatures in the 40s and 50s. A number of fields in multiple counties have been confirmed (see map below) and many fields have enough stripe rust to be at […]

07
Feb
2015
Arkansas Rice Update 2-7-15
Author: Jarrod Hardke, Rice Extension Agronomist

February 7, 2015                         No. 2015-3 Dr. Jarrod Hardke & Dr. Yeshi Wamishe Final Acreage Numbers In Table 1 is a summary of the most widely grown rice cultivars for Arkansas in 2014 based on DD50 enrollment information.  Since 2011, RiceTec CL XL745 has been the most commonly planted cultivar.  Jupiter and CL151 have also been […]

29
Jan
2015
Wheat stripe rust is on the move in Arkansas
Author: Terry Spurlock, Extension Plant Pathologist

Stripe rust has been confirmed on wheat in eastern Lincoln Co., Arkansas. Other reports have indicated wheat affected in fields in Lee Co. Much like 2012 and 2013, the disease is appearing early in the season and will have to be managed sooner rather than later. In affected fields, yellow orange pustules of the fungus […]

13
Jan
2015
2015 Arkansas Soybean Quick Facts now available
Author: Jeremy Ross, Extension Agronomist - Soybeans

The 2015 version of Arkansas Soybean Quick Facts is now available here and under the publications tab of the Arkansas Row Crops blog.  Soybean Quick Facts provides information on growth and development, disease management, insects management, seeding, seed treatments, weed control, irrigation, fertility, and harvest for the 2014 soybean growing season.

24
Dec
2014
Soybean Update now available
Author: Jeremy Ross, Extension Agronomist - Soybeans

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 Arkansas Division of Agriculture Soybean Performance Trials and screening programs, and is provided as an aid in variety selection.  View the Soybean […]

04
Dec
2014
Arkansas Rice Update 12-4-14
Author: Jarrod Hardke, Rice Extension Agronomist

Arkansas Rice Update December 4, 2014 New information is available by following the links below: Rice Information Sheet 173 containing the final results of the Arkansas Rice Performance Trials, Producer Rice Evaluation Program, and DD50 Planting Date studies. Preliminary 2014 Rice Harvest Acreage Summary table (will be finalized after release of final FSA acreage report […]

28
Oct
2014
Plan Early for Rice Disease Management
Author: Yeshi Wamishe, Extension Rice Plant Pathologist

Diseases are limiting factors for crop production.  No field is free of diseases.  It is hard to predict the weather conditions of the coming season.  The way we manage our rice fields plays a major role in our disease situations.  If weather conditions are favorable for disease and our field management is somehow inadequate, the […]

23
Oct
2014
Crown sheath rot unusually severe on medium grain rice
Author: Yeshi Wamishe, Extension Rice Plant Pathologist

By Rick Cartwright and Yeshi Wasmishe Gaeumannomyces graminis var. graminis (Sacc.) Arx and D.Oliver causes crown (black) sheath rot disease of rice. This disease is common in Arkansas rice fields (MP192_Arkansas Rice production Handbook) but usually does not cause severe damage. The disease has also been named “Arkansas foot rot” (LSU Diseases ID and Management […]

21
Oct
2014
Soybean rust detected in Arkansas but too late to affect 2014 crop
Author: Travis Faske, Extension Plant Pathologist

Soybean rust was confirmed earlier this week in three Arkansas counties: Ashley, Chicot and Drew (Fig. 1). Amanda Greer, program associate in extension plant pathology, identified one field in Ashley and Chicot counties with SBR. Soybeans in these fields were near R8 growth stage. Moreover, SBR was confirmed on kudzu in Drew County. Disease incidence […]

01
Oct
2014
Arkansas peanut harvest update and a new leaf spot disease
Author: Travis Faske, Extension Plant Pathologist

Peanut harvest is in full swing this week, which is about two weeks earlier than 2013. Somewhere between 40 to 50% of the crop has been dug and 15 to 20% thrashed. Grades have ranged from 74 to 79 and yield between 4,200 and 5,000 lb/ac. These grades and yield are similar to 2013, which […]