What is the primary design feature of subsurface injection systems used in aquatic weed control?

The primary design feature of subsurface injection systems used in aquatic weed control focuses on achieving the most effective distribution of herbicides in the water column to target specific aquatic plants. Short hoses spaced at intervals allow for more precise application of the treatment, ensuring that the herbicide is delivered directly to the root zones of the target plants while minimizing the impact on non-target species and the surrounding ecosystem.

This design optimizes the herbicide's effectiveness by enabling it to penetrate the sediment where many aquatic weeds establish themselves. The spacing of the hoses ensures that the treatment reaches a wider area without overwhelming any single point, thus improving the chances for successful aquatic weed control while promoting environmental safety.