FOLIAR BURN

Caused by spray drifts, especialy to lower leaves

Small drops of paraquat cause a yellow spot very much like downy mildew oilspots

Small drops of paraquat cause a yellow spot very much like downy mildew oilspots
Photo credit: Peter Magarey

LOOK FOR

Look for in shoots

Light yellow, circular spots on leaves (at first resembling downy mildew leaf blotches)

OTHER FOLIAR BURN IMAGES

Paraquat causes more severe symptoms as the dose applied increases

Dead spots from paraquat on lower leaves which received large spray drops

Glyphosate spray-drift damage distorts and curls leaves upwards

LOOKS LIKE