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Rose: Rosa hybrida ‘Morden Centennial’
Black spot: Diplocarpon rosae

Control of black spot on rose.

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First Author: Michelle Grabowski, University of Minnesota Extension.

Additional Authors: D.C. Zlesak, J.H. Gillman

Section: Ornamentals and Trees

Keyword(s): black spot, fungicide, botanical oil, biocontrol, biofungicide

Geographical location: Minnesota, United States

Products Tested: Fung-onil Concentrate

Active chemical(s): Chlorothalonil

Biological Control: 1. Sonata ASO; Bacillus pumilis; Agraquest, Inc. 2. Rhapsody AS; Bacillus subtilis; Agraquest, Inc. 3. Concern Garden Defense; clarified hydrophobic extract of neem oil; Woodstream Corp.

Biorational Product:

Manufacturer(s): Bonide

Publication date: March 25, 2008

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