Identify the thickening adjuvant used to increase droplet size and reduce drift.

• A. Drift-reduction additive
• B. Endophyte
• C. Drought
• D. Droplet Spectrum

Answer: (A)

Thickening adjuvants change the spray mix to make larger droplets, which are less likely to drift with wind. By increasing the viscosity of the solution, these additives help droplets stay bigger as they leave the nozzle, enhancing deposition on the target and reducing off-target movement. A drift-reduction additive is specifically designed for this purpose, making it the best choice for increasing droplet size and cutting drift. The other terms don’t fit: an endophyte is a fungus in grasses, drought is an environmental condition, and droplet spectrum describes the range of droplet sizes produced by a nozzle, not an additive. Using a drift-reduction additive helps improve coverage while limiting off-target spray.