To minimize drift and achieve localized treatment, which method is commonly used?

• A. Broadcast spray
• B. Granular formulations or spot-treatment liquids
• C. Aerial fogging
• D. Soil drench in irrigation

Answer: (B)

To minimize drift and target treatment closely where it’s needed, granular formulations or spot-treatment liquids are typically used. Granules are heavier particles that stay where they’re placed, so they deliver product directly to the soil surface or to a localized patch without spreading far in the air. This makes it easy to treat weed patches or small infestations without affecting surrounding turf. Spot-treatment liquids let you apply a tiny amount of product precisely to the problem spot using a wand or small spray device, again limiting off-target movement and conserving product.

In contrast, a broadcast spray covers a large area with finer droplets, which increases the chance of drift and off-target deposition. Aerial fogging uses very fine droplets for wide-area coverage, which heightens drift risk and makes precise localization difficult. A soil drench delivered through irrigation moves the product through the soil and isn’t suited to localized surface treatment; it also depends on irrigation timing and can affect a broader area or leach beyond the target zone.

So, granular or spot-treatment approaches align best with the goal of minimizing drift while concentrating effort where it’s needed.