Franz asked...." Has anybody any information about its effect on the worm
population in the soil? ........."

No information as such, but
Glyphosate should be sprayed when the plants are dry and no rain is expected
for several hours.
Glyphosate is inactivated upon contact with the soil, even though once taken
into the plant, through the leaf, it works over a period of up to 3 weeks.
When the ground is dry then the worms stay down and out of the way of the
chemical.

"Glyphosate is strongly adsorbed to soil, with little potential for leaching
to ground water. Microbes in the soil readily and completely degrade it even
under low temperature conditions. It tends to adhere to sediments when
released to water. Glyphosate does not tend to accumulate in aquatic
life".(United States Environmental Protection Agency )


--
David Hill
Abacus nurseries
www.abacus-nurseries.co.uk