miss calm wrote:

Want to kill weeds growing out of the concrete around the house. Anyone know
of a well-known brand that is safe for pussykats and
birds?.......................... :-)

Glyphosate is as good as any. Cheapest own brand from a DIY store with largest %
glyphosate should do it. The active ingredient is relatively harmless to mammals
and birds. But incredibly lethal to green plants - it targets a pathway that
only occurs in photosynthesis. Unless your cat is green it should be safe
enough.

The real formulations for garden use also include wetting agents (powerful
detergents) that are not so nice and have killed people who drank a bottle full
of concentrate. Treat all garden chemicals with respect.

Nothing is completely safe. You can potentially expire by drinking too much pure
water.

Regards,
Martin Brown