Hartbeespoort Dam in South Africa has a new invasive aquatic weed to battle, Salvinia minima. The proliferation of common salvinia, just as water hyacinth came under biological control through the combined efforts is no coincidence. In areas that experience high levels of nutrient inflow (pollution), the control of one aquatic weed opens resources to other
In mid-June in Clear Lake, much of the curly-leaf pondweed had reached the end of its life cycle, and the weeds washing ashore are just a result of that. Curly-leaf pondweed begins to grow during the fall at the bottom of bodies of water, like Clear Lake, with its life cycle coming to an end