In message , Franz Heymann
writes
I use glyphosate regularly in my garden, as I have been convinced of
how quickly it disappears from the scene.
I do, however one blank area in my assessment of its possible negative
qualities: Has anybody any information about its effect on the worm
population in the soil?

The glyphosate itself is unlikely to do them much harm, but the wetting
agents used in commercial formulations might not be too good for worms.

Regards,
--
Martin Brown