August 13, 2021

It's August, and if you grow sorghum on the Texas Plains, Sorghum Checkoff Agronomist Brent Bean, says it's time to scout fields for sugarcane aphids.
"Sugarcane aphids (SCA) have spread rapidly over the last 10 days and can now be found as far north as Wichita, Kansas. In most instances, SCA are well below threshold and it takes some looking to find them," Bean said in a recent e-mail.
In the southern areas, SCA may be reaching threshold levels, he warned. "So be scouting fields at least twice a week."
Thresholds differ slightly region-by-region and depending on the various sorghum stages, Bean said. An insecticide application should be made once 50 aphids are present, or a colony the size of a nickel, on a leaf of 25% to 30% of the plants.
"Scout numerous areas in a field," he added. "Although SCA was not much of a problem in South Texas this year, I do know in a few fields an insecticide application was needed prior to harvest."
Watch this video to learn more. Additional videos will be added, so check back!
"it's that time of year," says Sorghum Checkoff Agronomist Brent Bean. Time to scout bi-weekly for sugarcane aphids and other pests. Hear what he had to say. Part 1 @SorghumCheckoff @SorghumBrent @TexasSorghum pic.twitter.com/ZiRPUfDg2W
— Farm Press (@farmpress) August 13, 2021
Threshold and treatment
Part 2: talking sugarcane aphids with Agronomist Brent Bean. What is threshold? Treatment options? @SorghumBrent @SorghumCheckoff @SorghumGrowers @TexasSorghum #sorghum pic.twitter.com/WPsXv0QAtE
— Farm Press (@farmpress) August 13, 2021
Forage sorghum and sugarcane aphids
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