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Category Posts for Corn

25
Jul
2014
Arkansas Corn and Grain Sorghum Weekly Update – July 25, 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 the race to irrigation termination.  The Arkansas and White County fields need one more irrigation or rainfall before irrigation termination.  Lonoke, Lee and St Francis Counties need irrigated one more time or maybe two, depending on how it […]

23
Jul
2014
Corn and Grain Sorghum Irrigation Termination
Author: Jason Kelley, Wheat & Feed Grains Extension Agronomist

For the most part, we have had a relatively cool and wet summer across Arkansas that has allowed us to reduce the number of irrigations on corn and grain sorghum. Driving around the state, it is hard to tell much difference between non irrigated corn and grain sorghum fields and fully irrigated fields. As we […]

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
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 Corn and Grain Sorghum Weekly Update – July 11, 2014
Author: Kevin Lawson, Program Associate - Corn & Grain Sorghum Verification

Corn and Grain Sorghum Research Verification – Kevin Lawson (Corn & GS Verification Coordinator) Irrigations on corn fields continue in between rain showers.  Several producers have commented on how they will begin irrigation but have stopped because it rained.  We continue to scout for disease, but everything is clean. White sugarcane aphids have been found […]

07
Jul
2014
Leaf blight showing up in some grain sorghum fields in Arkansas
Author: Travis Faske, Extension Plant Pathologist

Leaf blight is a foliar disease of sorghum that infrequently occurs in Arkansas was observed earlier this year. A low level of leaf blight (1-2 lesions per plant on <1% of plants in a field) was detected in a few grain sorghum fields across central Arkansas. Leaf blight was observed in the lower to mid-canopy […]

03
Jul
2014
Common foliar disease of soybean and corn that are not managed with a fungicide
Author: Travis Faske, Extension Plant Pathologist

Throughout the growing season there are several foliar diseases that affect soybean and corn production in Arkansas. These include a few minor diseases that do not warrant a fungicide because they do not cause any significant yield loss. Currently, a few of these minor soybean and corn diseases are present in fields across the state. […]

01
Jul
2014
Insect update: Sugarcane aphid, fall armyworm, rice water weevil, plant bugs
Author: Gus Lorenz, Extension Entomologist

Grain Sorghum Last Friday we went to Chicot and Ashley County looking for sugarcane aphid. It has been previously found in MS, LA, TX and OK. So, it should be no surprise that we had no trouble finding it. In fact, the first field we checked our new SEREC entomologist, Nick Seiter, found it fairly […]

27
Jun
2014
Arkansas Corn and Grain Sorghum Weekly Update – June 27, 2014
Author: Kevin Lawson, Program Associate - Corn & Grain Sorghum Verification

Corn and Grain Sorghum Research Verification – Kevin Lawson (Corn & GS Verification Coordinator) Irrigation continues with the corn verification fields.  Producers have been commenting on how this is the latest that they have started the water in recent memory.  When corn reaches the reproductive stage it uses approximately 0.33 inches a day.  If you […]