Syngenta has confirmed resistance to thiamethoxam, the active ingredient in Cruiser, Avicta Complete, Avicta Duo and Acceleron N seed treatments in four populations of tobacco thrips collected in the Mid-South. Early indications suggest that this resistance is confined to the Mid-South. Thiamethoxam is a widely used seed treatment for cotton, corn, soybeans and rice in
READ FULL ARTICLE Mid-South Tobacco Thrips Resistant to Thiamethoxam
Dr. Rick Mascagni- Northeast Research Station
Dr. Josh Lofton- Macon Ridge Research Station
Table 1. Preliminary yield data in the grain sorghum hybrid performance trials for six locations and multiple planting dates (PD), 2013. Brand/Hybrid Alexandria Crowley St. Joseph St. Joseph Bossier City Winnsboro Avg Commerce silt loam Sharkey clay PD1 PD2 PD1 PD2
READ FULL ARTICLE Preliminary Yield Data for Grain Sorghum Trials, 2013
Glyphosate-resistant (GR) Italian ryegrass has been documented in Mississippi and growers have been forced to adopt practices to manage it. GR Italian ryegrass has been shown to significantly reduce corn yield and is troublesome in cotton and soybean if not controlled. LSU AgCenter weed scientists currently have samples from multiple locations in Louisiana where glyphosate
READ FULL ARTICLE Programs for Control of Suspected Glyphosate-Resistant Italian Ryegrass in Louisiana
A 24c label has been granted for fall-application of Boundary 6.5 EC in Louisiana. This will provide producers another tool to mitigate/manage Italian ryegrass in the fall. 24c label is linked below.
If you have any questions, please call:
Dr. Daniel Stephenson (318-308-7225)
Dr. Donnie Miller (318-614-4044)
Dr. Donnie Miller, Professor, Northeast Research Station, LSU AgCenter
Dr. Daniel Stephenson, Associate Professor, Dean Lee Research and Extension Center, LSU AgCenter
Dr. David Kerns, Associate Professor, Macon Ridge Research Station, LSU AgCenter
Please see the link below for the 2013 Cotton Harvest Aid Guidelines for Louisiana.
This special local need label allows soybean producers to apply a maximum of 2lbs (ai/acre) of acephate per season. The previous maximum was 1.5lbs (ai/acre) per season.
For more information or if you have any questions or concerns, please contact:
Sebe Brown at 318-498-1283 (cell) or 318-435-2903 (office)
Dr. David Kerns at 318-439-4844 (cell)
READ FULL ARTICLE Section 24c Granted for Acephate in Louisiana Soybeans
Recently, David Kerns and I have been receiving more calls about aphids in grain sorghum. Three species of aphids colonize grain sorghum in Louisiana – corn leaf aphid, yellow sugarcane aphid and green bug.
The corn leaf aphid is blue to grayish green in color with black cornicles (twin exhaust pipes on rear of the
READ FULL ARTICLE Aphids in Grain Sorghum
Cotton Leaf Spots
Trey Price, Beatrix Haggard, Josh Lofton, Boyd Padgett and Clayton Hollier
Recently, there have been numerous reports of leaf spot in cotton. Individuals who frequent cotton fields should be monitoring for this disease. Currently, an
READ FULL ARTICLE Cotton Leaf Spots
I have been receiving more calls about ULV malathion and its use on cotton. Outlined below are the rules regarding the use of ULV malathion and application intervals outlined by the LDAF.
Courtesy of Bobby Simoneaux:
An ultra-low volume (ULV) malathion and a ULV pyrethroid insecticide (tank mixed) may be applied to control plant bugs
READ FULL ARTICLE ULV Malathion