Soybean sentinel plot update
Editor’s note: This article is from the archives of the MSU Crop Advisory Team
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This summer the weather in Michigan, especially June, could be described as a “cornucopia” of climatic changes. Above all the changes, we experienced unseasonably rainy days and chilly nights, which have resulted in a delayed development of many plants, vegetables, and crops, including soybeans. As the month of July rolled in, we finally had warmer temperatures. In spite of Michigan’s weather roller coaster, many plant pathogens continued their life cycle and made it into our crops, and soybean was no exception. As of August 5, we have received samples of soybean leaves from Michigan’s sentinel plots, and a number of samples are being processed and diagnosed, but no soybean rust has been detected. Septoria brown spot, bacterial blight and bacterial pustule make up the majority of diseases diagnosed from sentinel plot samples so far.