I have heard that wheat is starting to flower in parts of southern Indiana, and the Fusarium risk forecast is still red for most of the state indicating a high-risk potential for infection. Recent weather conditions will only continue to promote the high risk.
Even though rainy conditions continue to slow planting across the state, we need to keep an eye on winter wheat. These wet conditions will favor many fungal diseases.
Wheat has greened-up and is actively growing across Indiana. Our southern field plots in Vincennes were at Feekes 8 (flag leaf emerged) earlier this week, while in West Lafayette plots are at Feekes 5 (leaf sheath strongly erect).
As we wait for the fields to dry – here are a couple of resources that you can check out and bookmark to keep you up to date on field crop diseases this season.
There are a number of fungal soybean diseases that can greatly impact seed quality.
Heavy rains and wind have started to take a toll on corn that has compromised stalks. Many factors can contribute to stalk decline – I am going to focus on the plant pathogenic causes, but note abiotic stresses factors could also play a role such as drought and flooding.
Soybeans in Indiana often show potassium (K) deficiency symptoms during seed fill – leaf margin chlorosis to necrosis.
Local epidemics of corn tar spot have growers worried in Indiana about how their corn will finish out the season.
Southern rust of corn was officially confirmed this week in both Knox and Jackson counties Indiana.
He is studying the dynamics of plant disease and epidemiology of crop diseases and in particular grey leaf spot and northern corn leaf blight in corn. His lab is looking to establish a collection of isolates of these two diseases from across the state for epidemiological work that could be the basis for developing strategies to manage GLS in the future.
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