Beware of Bacterial Leaf Streak in 2017 Corn
Delaware: Although bacterial leaf streak (BLS) has been detected in nine states, it has not been detected east of Illinois. Despite this, corn growers in Delaware should be on the lookout for this disease in 2017.
According to the University of Delaware Extension, little is known about the disease cycle of BLS. Experts do know that the disease is caused by a bacterium, Xanthomonas vasicola pv. vasculorum. Based off this, they assume that the pathogen may overwinter in corn debris or volunteer corn and that the spread of the pathogen likely occurs through irrigation, flooding, and heavy rain/wind events.
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