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Satellite observations can help in several ways . They've also been seen in St. Paul , Stillwater , Hastings , Rochester and Winona , according to Doree Maser of the Minnesota Department of Agriculture . For more information , refer to the University of Minnesota Extension Service fact sheet , Japanese Beetle Management in Minnesota . Satellite techniques are especially well suited to this job . Flower blight of bedding plants is one of the first symptoms of this disease . Standard rootstocks are more tolerant to wetter and drier soils and are better anchored than are the dwarfing types .