Publications for:

pest = Golovinomyces biocellatus
crop = Majoram and relatives (Origanum)

found 2 publications:

2012

Golovinomyces biocellatus on oregano (Origanum vulgare 'Compactum') in Italy
Plant Disease (2012) 96 (3), p.457
publishers website - pestinfo wiki

2009

Powdery mildew of Origanum vulgare caused by Golovinomyces biocellatus
Journal of Plant Pathology (2009) 91 (2), p. 501
publishers website - pestinfo wiki