Herbicides with limited crop selectivity can be applied as ________ sprays.

• A. Basal
• B. Shielded
• C. Broadcast
• D. Foliar

Answer: (A)

When a herbicide isn’t very crop-selective, the goal is to limit how much of the crop is exposed while still reaching the weeds. Delivering the chemical as a basal spray achieves this by applying it to the base of the plant, around the soil line. This confines most of the spray to the lower stem and soil-contact area, reducing contact with the crop’s leaves and upper tissues and thereby lowering the risk of crop injury. Other methods spread across the whole plant or rely on shields to block exposure, which increases the chance of harming the crop. Basal spraying focuses the treatment where it will harm fewer crop parts while still addressing nearby weeds.