Blight

We have some tomatoes in our greenhouse. They are producing some ripe plum tomatoes which are nice and there are many more still to come. We had some left over when we planted the greenhouse ones, so I planted them outside. They have been ripening steadily but suddenly the fruit went black and black blotches appeared on the stems. Blight had struck, so we pulled them up and put them in our council green-waste bin. This will get composted at very high temperature. That land must remain tomato and potato free for years.