Soybean aphids, late-season crop diseases and crop prospects will be among the topics Sept. 7 at a field day at the Iowa State University Northern Research and Demonstration Farm near Kanawha.
Research on corn, soybeans and vegetables will be featured Aug. 15 during a field day at the Iowa State University’s Muscatine Island Research and Demonstration Farm.
The persistent hot weather in many areas of the country this growing season may be conducive to the development of charcoal rot disease in soybean. Farmers, agronomists, crop consultants and specialists are encouraged to scout for this particular disease now.
Having a plan is one of the most important ingredients for marketing both old and new crop corn and soybeans.
Farmer requests for a quick information on the developmental stages of corn and soybeans led extension specialist Mark Licht t to produce new reference materials.
There are both wingless and winged forms, according to Matt O’Neal, assistant professor, Entomology. He says wingless soybean aphid adults are about 1⁄16 inch in length, pale yellow or green, and have dark-tipped cornicles (tail pipes) near the end of the abdomen. The winged form has a shiny black head and thorax with a dark green abdomen and black cornicles.
