- Electrostatic backpack sprayers are now widely available for ~$75 shipped, with models from mainstream tool brands like Ryobi appearing on Amazon and surplus sites.  
- A ResearchGate paper (DOI: 10.13031/aea.13945) reports that electrostatic spraying does not improve glyphosate weed-control efficacy, regardless of adjuvant or carrier volume.  
- Participants noted that while glyphosate itself is relatively low-toxicity to humans, the adjuvants mixed with commercial herbicides are the primary health concern when overspray coats skin or clothing.  
- The discussion highlighted the tension between the promise of electrostatic coating (uniform coverage, reduced drift) and practical safety issues when spraying toxic chemicals.