>>37239
>I never saw it
Now you have.
>Then they reproduce outside of the plant, but they still get into a plant dormant and unharmful.
And how do they get into the plant?

You need to think further about inoculation. I've given you the example of taking fungal material from an infected leaf, applying it on a healthy leaf and the disease spreads. In your theory, of course, what actually happened was that the nonliving toxin was also within the fungal material and it was what infected the healthy leaf. There's the problem of contaminant/symptom disproportionality but you don't care.
However, consider this other scenario: you remove fungal material from a diseased plant, but this fungus can be grown on Petri dishes. You isolate it and grow colonies. In the course of this isolation you already take only a very small number of cells and grow your colonies from them. You can further isolate if you want. The point is, in the colonies you're growing there's almost nothing from the source material. You can safely say that the nonliving toxin is absent, or in homeopathic quantities. It's a non-factor. You have the fungus alone, no toxin.

What happens if you retrieve this fungus, devoid of the toxin that causes disease, and inoculate into a healthy plant? You now have a plant with the fungus, but without the toxin. And what happens? It develops the disease. Sounds conclusive to me.

This isn't simply hypothetical. On this paper this is done very casually. See:
>P. digitatum and P. italicum isolates were obtained from decayed orange (Citrus sinensis ‘‘Washington navel’’) and mandarin (Citrus reticulata)
So the source is a diseased plant.
>Prior to each experiment, the isolates were grown on potato dextrose agar
So you have the fungi alone with no toxin.
>P. digitatum and P. italicum spore suspensions (10^6 spores per ml) were inoculated by using the spot, wound, and piercing inoculation methods as in the in vitro studies described above. Each orange was inoculated at three sites around the stem end (7). The inoculated oranges were incubated at 25 C for 24 h in plastic boxes to let the inoculums dry.