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Category Posts for Disease

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 […]

15
Sep
2014
Peanut Disease Update: Sclerotinia blight caused by Sclerotinia sclerotiorum confirmed in Arkansas
Author: Travis Faske, Extension Plant Pathologist

Sclerotinia blight caused by Sclerotinia sclerotiorum was confirmed earlier this month in a commercial peanut field near Pocahontas. Sclerotinia blight symptoms were recognized by Gordon Drennan with the Clint William Co. and confirmed by extension plant pathologist on a runner peanut cv. Florun107. Symptomatic plants were observed in several large (2’ x 5’) foci with […]

12
Sep
2014
Soybean Research Verification Program Weekly Update Update – September 12, 2014
Author: Chris Grimes, Program Associate - Soybean/Wheat Verification Coordinator

Rainfall was scattered across the state this week. We have terminated irrigation on the majority of the fields this week. Insect pressure has increased this week and a few fields required treatment for stinkbugs. Three of the verification fields have been harvested and a couple more waiting on the combine. County Variety Stage General Information […]

02
Sep
2014
Rice research verification update for September 1, 2014
Author: Ralph Mazzanti, Rice Research Verification Coordinator

The heat units continue to add up which has grain maturity moving fast. There are five out of fifteen fields that have reached maturity and are waiting on harvest. Those fields include Arkansas, Chicot, Desha, Prairie and Lawrence Counties. Seven fields are at 100% headed and three fields are draining. RSBs have been very light […]

29
Aug
2014
Soybean sudden death syndrome may indicate nematode problem
Author: Terry Kirkpatrick, Professor - Plant Pathology

The Sudden Death Syndrome (SDS) in your soybean field may be trying to tell you something!  The increased incidence in SDS statewide this year is due to a lot of factors, including the cool, wet summer we have had.  However, keep in mind that although SDS is caused by the soil borne fungal pathogen Fusarium […]

29
Aug
2014
Soybean research verification program update for August 29, 2014
Author: Chris Grimes, Program Associate - Soybean/Wheat Verification Coordinator

Desha County field has been harvested and we have a couple more either ready or real close. Irrigation continues to be top priority at this point in the program. We have a few fields approaching irrigation termination, but we have several still that are R5 and have a ways to go. Overall insect and disease […]

25
Aug
2014
Rice research verification program update for August 25, 2014
Author: Ralph Mazzanti, Rice Research Verification Coordinator

The heat units have added up this past week and grain maturity is moving fast. There are nine out of fifteen fields now draining in the verification program. Those fields include Arkansas, Chicot, Desha, Lee, Lincoln, Lonoke, St. Francis, Lawrence, and Prairie County. Two fields are at 100% headed and four fields are at 100% […]

22
Aug
2014
Soybean research verification program update for August 22, 2014
Author: Chris Grimes, Program Associate - Soybean/Wheat Verification Coordinator

Rainfall was more abundant across the southern SRVP fields this week. Irrigation continues to be top priority at this point in the program and we have terminated irrigation a few fields. Desha & Lafayette have reached R7, harvest should be soon. Overall, insect and disease pressure was light in the verification fields this week. County […]