Why have tomatoes in my polycarbonate glasshouse gone mouldy? The leaves are spotted with mould and turn yellow, and many of the flowers don’t develop into fruit, while my outside tomatoes have done really well.
I have discovered what looks like bora on our nectarine tree. We treated our house for bora last summer. Could the bora have spread from the house to this fruit tree? How can we treat it so the fruit will be safe to eat?