Current method of choice for powdery mildew control
1. Use IPM method with Gubler-Thomas model
2. Rotate fungicides with different modes of use to prevent selecting for resistant strains.
PM control: Crisp group
Compares alternative methods. Milk is the best for low pressure regions . Also references 2 and 3 in the Greenspan article provide more detail on application rates and methods.
PM detection: Gary Grove
Rod collection with PM spores, not viable method yet due to PCR requirement and rods are cumbersome. A good group to follow.
Mite control (Willamette and Pacific): Zalom group
Compares products. Agri-Mek, Zeal+Dannitol, Envidor, Acramite and Omite best. Did not test stylet.
Filed under: pest and disease