John I am amazed by this and find it the sort of thing that can put people off gardening. I have just had runner beans for the third year running, in the same beds, giving the heaviest and healthiest crop so far. Runner bean plants do not exactly “pop up” anyway, its bizarre.
I think that burning organic matter is a terrible waste and also it releases carbon to the atmosphere instead of where it is needed.
Its more effective to build soil health so that diseases cannot damage our plants, even when they are present, which they usually are, in small amounts. Its more about resistance than avoidance.
And yes no dig helps build the health (disease-resistance) of both soil and plants.