using bees as crop dusters

Here's some info about an emerging bee function. On the surface it seems promising. One thing I haven't seen much mention of is how it affects the bees. The MSDS seems reasonably safe but the following quote from the product label worries me. I think cavet emptor until it is studied more.

Commercial Honey Bee Management: This product has not been completely evaluated for effects on bee
brood under the labeled use conditions. Monitor your hives and contact the registrant (1-647-660-5119)
if effects are observed.

https://americanbeejournal.com/bee-vectoring-technology/

https://www.vectoritebvt.com/wp-content/uploads/2019/10/Safety-Data-Sheet-Vectorite-with-CR-7.pdf

https://www.vectoritebvt.com/wp-content/uploads/2019/10/Specimen-Label-Vectorhive-HB.pdf

This is an area I've done some scientific research in. Bee vectoring has promise, particularly for delivering beneficial microbes directly to flowers to provide protection against pathogens that also specifically target flowers (e.g. bud rots, fireblight, etc). Both honey bees and bumble bees have been trialed since the 1990's for this purpose, but things have really taken off in the last ~10 years. Some studies show the bees as being extremely effective at distributing the microbes to flowers, meaning growers could end up using far less pesticide per unit area than current application strategies by delivering directly to the target area (and not leaves/twigs/the ground/etc).

In New Zealand, in order for these technologies to be approved, there would need to be trials to demonstrate that the microbes and adjuvants are not ending up in the honey (or, if they are, that they are not toxic to humans). This doesn't seem to be a requirement in the USA (non-active-ingredients have far fewer regulations), so I'd be particularly cautious about using honey from a hive that was doing entomovectoring if there's any potentially harmful adjuvants or if the microorganism is an opportunistic human pathogen. This risk is one reason lots of work is currently focusing on using managed bumble bee colonies as entomovectors, as there isn't the same concern that you'll contaminate food supply chains.

Ending up in honey was one of my concerns too. I assumed that's why most of the things I was reading talked about bumble bees. Another thing I noticed was that bees can only deliver it 400 feet (or was it yards?). Presumably because it falls off. So what adverse effect would that have on the plants & animals that it fell on?