2012-01-30 Pest E-Alert 1 |
Previous | 1 of 2 | Next |
|
small (250x250 max)
medium (500x500 max)
Large
Extra Large
large ( > 500x500)
Full Resolution
All (PDF)
|
This page
All
|
Entomology and Plant Pathology, Oklahoma State University 127 Noble Research Center, Stillwater, OK74078 405.744.5527 Vol. 11, No. 4 http://entoplp.okstate.edu/Pddl/ Jan 30, 2012 Wheat Disease Update Bob Hunger, Extension Wheat Pathologist Scouting around Stillwater this last week revealed little in the way of foliar diseases. In the early planted (20-Sep-2011) variety demo strips I found a few powdery mildew pustules on low leaves, but very few, very small, and, very “old” looking. In contrast to a couple weeks ago, I found no rust pustules. I also found many aphids (mostly BCO aphids I think) in these early planted strips along with an abundance of purpling and yellowing. Some of that discoloration has resulted from cold, but much of it I would guess is barley yellow dwarf. Samples will be collected and tested this week for confirmation. In contrast to the early planted strips, the late planted (14-Oct-2011) demo strips are much shorter and greener and without disease or aphids. Arkansas Dr. Gene Milus (Small Grains Pathologist, University of Arkansas), 24-Jan: “Extension personnel found one area with stripe rust in a wheat field in eastern Arkansas. The area is about the size of a small car. Wheat is only in tillering stage, so it is not a typical hot spot. We are trying to determine the variety. This is a record for the earliest stripe rust ever reported in Arkansas. We have had a very mild winter so far, and stripe rust has 4 more months to develop.” Dr. Jason Kelley (Wheat & Feed Grains Extension Agronomist, University of Arkansas) 27-Jan: Wheat stripe rust has been found in Arkansas. On January 20, 2012, Richard Klerk, County Extension Agent in Cross Co. in northeast Arkansas, found stripe rust in a field of an experimental wheat variety that was planted October 6th.
Object Description
Okla State Agency |
Oklahoma Cooperative Extension Service |
Okla Agency Code | '012' |
Title | Pest e-alerts, 01/30/2012, v.11 no. 4 |
Authors |
Oklahoma Cooperative Extension Service. Oklahoma State University. Department of Entomology and Plant Pathology. |
Publication Date | 2012-01-30 |
Publication type |
Newsletter |
Purpose | Wheat disease update |
For all issues click | Z2155.6 P713d |
Digital Format | PDF, Adobe Reader required |
ODL electronic copy | Downloaded from Agency website: http://entoplp.okstate.edu/pddl/2012/PA11-4.pdf |
Rights and Permissions | This Oklahoma State Government Publication is provided for educational purposes under US copyright law. Other usage requires permission of copyright holders. |
Language | English |
Date created | 2014-09-23 |
Date modified | 2014-09-23 |
OCLC number | 890217494 |
Description
Title | 2012-01-30 Pest E-Alert 1 |
Full text | Entomology and Plant Pathology, Oklahoma State University 127 Noble Research Center, Stillwater, OK74078 405.744.5527 Vol. 11, No. 4 http://entoplp.okstate.edu/Pddl/ Jan 30, 2012 Wheat Disease Update Bob Hunger, Extension Wheat Pathologist Scouting around Stillwater this last week revealed little in the way of foliar diseases. In the early planted (20-Sep-2011) variety demo strips I found a few powdery mildew pustules on low leaves, but very few, very small, and, very “old” looking. In contrast to a couple weeks ago, I found no rust pustules. I also found many aphids (mostly BCO aphids I think) in these early planted strips along with an abundance of purpling and yellowing. Some of that discoloration has resulted from cold, but much of it I would guess is barley yellow dwarf. Samples will be collected and tested this week for confirmation. In contrast to the early planted strips, the late planted (14-Oct-2011) demo strips are much shorter and greener and without disease or aphids. Arkansas Dr. Gene Milus (Small Grains Pathologist, University of Arkansas), 24-Jan: “Extension personnel found one area with stripe rust in a wheat field in eastern Arkansas. The area is about the size of a small car. Wheat is only in tillering stage, so it is not a typical hot spot. We are trying to determine the variety. This is a record for the earliest stripe rust ever reported in Arkansas. We have had a very mild winter so far, and stripe rust has 4 more months to develop.” Dr. Jason Kelley (Wheat & Feed Grains Extension Agronomist, University of Arkansas) 27-Jan: Wheat stripe rust has been found in Arkansas. On January 20, 2012, Richard Klerk, County Extension Agent in Cross Co. in northeast Arkansas, found stripe rust in a field of an experimental wheat variety that was planted October 6th. |
Date created | 2012-02-27 |
Date modified | 2012-02-27 |