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Verruocosis / Citrus Scab
Hello, This is Diana Bergersen, Pyes Pa, Tauranga.
We have a fully Bio Gro property and successfully grow lemons with about 1
or 2 copper sprays a year. Last year I cut out the copper altogether
hoping that the general environment would cope with fungal disease. Some
susceptible Meyers now have a bad case of verrucosis which is gradually
spreading outwards to nearby trees. Are there other ways of controlling
verrucosis other than copper and would baking soda be useful?
Diana Bergersen, Tauranga
I am afraid we have no 'safe' recipe for this. Citrus Scab is usually, even organically prevented with Copper sprays. However, the baking soda (2g/l) at two weekly intervals is worth giving it a try.