Terry Coombs used improper usenet message composition style by
unnecessarily full-quoting:

FWIW and for anyone who cares , QUIT KILLING THE BEES !
Just about every one of those compounds for killing weeds has an
effect on our pollinators.

I think you're confusing herbicides and insecticides.

Herbicides have no designed or documented effects directly on insects as
far as I know, apart from reducing potential pollen sources from
flowering weeds.