 BORON TOXICITY
Boron toxicity causes brown speckles on leaf margins (left), rounded lobes (top), toothless margins and open sinus (right)
Photo credit: Ben Robinson
Look for in leaves- BORON TOXICITY
- Leaf margins with brown or black spots which first appear at the edges of leaf margins but may be scattered inwards between main veins
- Older leaves with scorched, downward curled and toothless margins
- Rounded lobes on leaves
- Younger leaves that may curl upwards
Look for in bunches - BORON TOXICITY
- Patchy fruit set
- BORON TOXICITY
- Occurs sometimes in inland regions of Australia or where vines have been planted after vegetables.
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