Depends on the dosage. Like any chemist will tell you.

Herbicide can certainly be effective and at the same time not be dangerous to the human body simply because our body mass is higher and thus the effective dosage per kg of body mass is lower.

Or alternatively, herbicides can be made less effective against mammals but more effective against other animals/insects by disrupting cell chemistry not present in mammals (or humans if you want to be more specific on the chemical).

Of course, herbicide is not healthy if consumed in any large amounts, it's after all a poison, small dosages can be made safe for humans while still being dangerous to not-humans.

Any herbicide whether natural or artificial that prevents other organisms from eating your crop cannot be effective and healthy at the same time. This applies also for vegetables that are naturally resistant to pests (e.g. Vegetable strains that are Much more bitter than the wild type ).

The solution is to not to have an expectation that vegetables should be free of any insect or animal contact. But not everybody likes caterpillar bite marks on their vegetables.

Herbicides aren't intended to keep animals from eating crops. That would be an insecticide, in the case of insects. Herbicides are designed to kill plants, and Glyphosate in particular really only does that.

Thanks for the clarification i was not clear with my words

Sure. But the two mandatory questions of banning any pesticide are tough to answer:

- Can we have similar output (quality/quantity/cost) without any pesticide at all?

- If not, are the alternative molecules better or worse?

Caffeine is an effective pesticide, yet it is considered to be healthy too.

Despite claiming your views are not effected by all the propaganda, you are biased against herbicides in a very propaganda smelling 2 dimensional manner.

I hate Monsanto more than the vermin and weeds they poison. But your statement just isn't true. There are differences in organisms' metabolisms, and it's perfectly possible for one substance to be deadly to one (class of) species, yet harmless or even nourishing to others.

Take antibiotics, which kill bacteria but have mild-to-none effects on humans (and most of the negative side effects on humans stem from their killing of even beneficial bacteria).