Fig 9. The effect of oxathiapiprolin on sporulation of P. cubensis in nature.
Downy mildew-infected plants in Net-house 3 were sprayed with oxathiapiroplin of 3 mg/l ai at 8 am 11.6.2015, while control plants were left untreated. Leaves were collected (after a dewy night) at 8 am 12.6.2015 and photographed. Note the heavy sporulation in control leaves but no sporulation in treated leaves.