What is a method for protecting against herbicide injury to ornamental plants?

What is a method for protecting against herbicide injury to ornamental plants?

• A. Using selective herbicides.
• B. Applying higher rates of nonselective herbicides.
• C. Using only post-emergent broad-spectrum herbicides.
• D. Spraying herbicides during the hottest part of the day.

Answer: (A)

Protecting ornamental plants from herbicide injury hinges on choosing products that are selective for weeds and safe for ornamentals. Selective herbicides are designed to control weeds while minimizing harm to the ornamentals you’re growing, often because they’re absorbed, translocated, or metabolized differently by weeds than by ornamentals, or because they target weed-specific enzymes. When you use these products according to label directions and with crops known to tolerate them, the risk of injury to ornamentals is much lower. The other options don’t offer that safety margin: using higher rates of nonselective herbicides increases the chance of damaging ornamentals, since nonselective products are not intended to spare ornamental plants; relying only on post-emergent broad-spectrum herbicides can still harm sensitive ornamentals; and spraying during the hottest part of the day stresses plants and can worsen injury and drift, reducing selectivity and safety.

Protecting ornamental plants from herbicide injury hinges on choosing products that are selective for weeds and safe for ornamentals. Selective herbicides are designed to control weeds while minimizing harm to the ornamentals you’re growing, often because they’re absorbed, translocated, or metabolized differently by weeds than by ornamentals, or because they target weed-specific enzymes. When you use these products according to label directions and with crops known to tolerate them, the risk of injury to ornamentals is much lower.

The other options don’t offer that safety margin: using higher rates of nonselective herbicides increases the chance of damaging ornamentals, since nonselective products are not intended to spare ornamental plants; relying only on post-emergent broad-spectrum herbicides can still harm sensitive ornamentals; and spraying during the hottest part of the day stresses plants and can worsen injury and drift, reducing selectivity and safety.