Farm Talk

Crops

October 22, 2013

Southwest Mo. field crop report

Parsons, Kansas — Jill Scheidt, agronomy specialist with University of Missouri Extension in Barton County, scouted area fields in southwest Missouri on Oct. 13 to prepare this week’s field scouting report.

Green stinkbugs were seen in large numbers in fields this week according to Scheidt. “If soybean seeds have already begun to turn color and mature or will soon, then it is not economical to spray an insecticide for green stinkbugs. If plants and seeds are still green, it is economical to spray an insecticide for green stinkbugs until the plants begin to turn color,” said Scheidt. Threshold for green stinkbugs are 1/ ft. Green stinkbugs can cause delayed maturity and reduced seed quality.

“A lot of first crop soybeans have lost their leaves,” said Scheidt.

For short-term storage (from harvest to about January), moisture content should be 13 percent or lower. For long-term, storage the moisture content should be 11 or 12 percent. If drying is necessary, natural air drying or an air drying temperature rise of 10 degrees Fahrenheit or less is recommended to avoid cracking and loss of viability.

“Eighty percent of harvest losses are associated with the combine header. Shattering, due to low moisture content, is one of the major causes of yield loss. Other major losses occur if plants are cut too high,” said Scheidt. Forward speeds of 2.5 to 3.5 miles per hour normally result in the lowest harvesting losses according to Scheidt. One can also reduce yield losses by driving slower when encountering heavy weed infestations.

More Information

Sponsors of this weekly field scouting report are University of Missouri Extension and Barton County Extension. For more information on this scouting report, or to learn how to receive it a week earlier by telephone, contact the MU Extension Center in Barton County, (417) 682-3579. £

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