Which applicator is designed for use with systemic herbicides against taller weeds?

The correct choice highlights that selective applicators are specifically designed for the application of systemic herbicides on taller weeds. Systemic herbicides work by penetrating the plant's system and being translocated throughout its tissues, which is especially important when targeting larger weeds that may have more extensive root systems and foliage.

Selective applicators are engineered to deliver these herbicides in a way that maximizes effectiveness while minimizing damage to surrounding desirable plants. They can be adjusted to focus the application, ensuring that the herbicide reaches the intended targets effectively, which is crucial when dealing with taller and potentially more challenging weeds.

This specialization makes selective applicators the best choice for applying systemic herbicides to taller plants, as they allow for targeted treatment that helps in controlling unwanted vegetation without affecting neighboring plants, which is essential in right-of-way management and maintenance practices.