DOES NORTH DAKOTA HAVE BLACK NIGHTSHADE OR EASTERN BLACK NIGHTSHADE?
A recent Weed Technology Journal article (13:151-156) studied response of Matrix to hairy nightshade, black nightshade and eastern black nightshade. Matrix is a sulfonylurea herbicide registered for use in potato and is a component in some premixes used in corn. Eastern black nightshade was found sensitive (>95% injury), hairy nightshade was moderately sensitive (50 to 99% injury), and eastern black nightshade was found tolerant to Matrix. The study found that differences in uptake and translocation account for differential sensitivity to Matrix. Why is this significant? Dr. Richard Greenland, Research Agronomist at the Oakes Experiment Station has observed that, what he thought was eastern black nightshade was not controlled after application of Matrix. After examining plants for identification, he concluded that the farm has a healthy population of black nightshade. This journal article seems to substantiate that North Dakota has both black and eastern black nightshade. The article a
