Which herbicide may persist in soil and is described as non-selective?

• A. Bromacil (Hyvar)
• B. 2,4-D
• C. Dichlorprop (Weedone 2,4-DP)
• D. Dicamba (Banvel)

Answer: (A)

Long-lasting soil residues and a broad kill spectrum describe bromacil. This herbicide is known for remaining active in the soil for extended periods, especially under certain soil conditions, giving it a long residual effect. Because it affects a wide range of plants rather than targeting only specific weeds, it’s considered non-selective. That combination means it can injure or kill plants that germinate or grow after application, which is a key consideration in forestry settings where new seedlings or desirable vegetation may appear later. The other herbicides listed are mainly foliar-acting and more selective toward broadleaf weeds, with faster degradation in soil, so they don’t carry the same long-term soil persistence.