Lodged corn may increase disease risk

Posted June 19, 2014 at 10:51 am

Jill Scheidt, agronomy specialist with University of Missouri Extension in Barton County scouted field south of Jasper for the crop scouting program on June 11.

Scheidt found that wheat is in the soft dough stage.

“It usually takes four weeks after flowering for wheat to be ready to harvest,” said Scheidt. Harvest wheat at 13.5% moisture in order to prevent fungus development in the storage bin.

While scouting the corn fields Scheidt found corn is in the 10-12 leaf stage.

“No diseases or insects were seen. There is some minor hail damage that can be identified by slight shredding of the leaves. This is nothing to worry about,” said Scheidt.

According to Scheidt, corn is lodged due to winds.

“If the stalk is not broken, plants that lodge in the vegetative stage often recover well. However, lodging can cause an increased risk for the development of some diseases,” said Scheidt.

Scheidt found soybeans in the 2nd to 3rd trifoliate.

“There was some leaf feeding from bean leaf beetle. Bean leaf beetle feeding can be identified by small circular holes in leaves,” said Scheidt. Soybeans can tolerate up to 30 percent defoliation before blooming before treatment is required.

Garden fleahoppers were also seen in soybeans.

“Garden fleahoppers look similar to a stinkbug, only they are smaller and are black in color; they also have piercing, sucking mouthparts,” said Scheidt. “There are no threshold levels or treatment options, garden fleahoppers are not known to cause economic damage.”

The weekly field scouting report is sponsored by 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.