[Rader Sidetrack]

Roundup (glyphosate) has no impact on pollen and honey (other than the weeds/plants the herbicide kills are not available for bees to forage on).

Potassium and nitrates are common components of many ordinary fertilizers - and compost. Zinc is also used in some fertilizers. What is the problem? My bees frequently visit and forage? on my compost piles.

If bees are soaked by water used to fluidize sprays, that can be a problem for the individual bee, but that would seem to be a small issue.

 

[Haraga]

If you are in doubt then be proactive and move your hives to somewhere that you know is safe.