Researchers have confirmed that Iowa isolates of the pathogen that causes frogeye leaf spot of soybean have shown resistance to quinone outside inhibitor (QoI, strobilurin) fungicides.
Iowa State University Extension and Outreach has released an updated version of the “Soybean Diseases” (IPM 4) publication to help farmers and other professionals in the agriculture industry identify and scout for disease threats to soybean production in Iowa.
Agronomists and farmers are reminded to scout for stalk and ear rots of corn as harvest nears, as stalk rots may be more prevalent this year, due to the stressful growing season across most of Iowa.
Elizabeth Stegemöller, an assistant professor of kinesiology at Iowa State University, established singing classes for people with Parkinson's disease. An upcoming music festival and concert will not only highlight the clients’ musical talents, but also celebrate the strength they have built through song.
Crop diseases, crop pest resistance and management, and Palmer amaranth in conservation plantings will be covered this August at the Iowa State Field Extension Education Laboratory near Boone.
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.
Adam Janke, assistant professor and extension wildlife specialist at Iowa State University, has authored a publication discussing chronic wasting disease and created a video with additional information about the disease that affects white-tailed deer and other members of the deer family.
Many people love tomatoes from the garden, fresh and delicious. But diseases that attack them and limit their potential are no fun to deal with. ISU Extension and Outreach horticulturists can help solve these issues and ensure a big garden tomato crop.
Sooty blotch and flyspeck may be as old as apples themselves. Drawings of apple varieties from the 1820s clearly show sooty blotch on every fruit. It wasn’t until sprayed-on pesticides, such as lime sulfur and lead arsenate, became popular around 1900 that consumers began to expect to buy apples without a heavy coating of sooty blotch and flyspeck. The cosmetically perfect apples found in today’s supermarkets weren’t common until the middle of the 20th century, when more effective organic fungicides appeared.
Late summer/early fall is the time of the year when leaves of bur oaks in Iowa are showing V-shaped brown discoloration and browning of the leaf veins. The affected leaves eventually die and fall to the ground or hang dead on the twigs through the winter and into the following year. The disease may affect the entire tree and if only a portion of the tree is affected, the disease is generally most severe in the bottom of the tree.