commonly and collectively called the bladderworts, is a genus of carnivorous plants consisting of approximately 233 species. They occur in fresh water and wet soil as terrestrial or aquatic species across every continent except Antarctica.

All Utricularia are carnivorous and capture small organisms by means of bladder-like traps. Terrestrial species tend to have tiny traps that feed on minute prey such as protozoa and rotifers swimming in water-saturated soil. The traps can range in size from 0.2 mm to 1.2 cm.[2] Aquatic species, such as U. vulgaris (common bladderwort), possess bladders that are usually larger and can feed on more substantial prey such as water fleas (Daphnia), nematodes and even fish fry, mosquito larvae and young tadpoles. Despite their small size, the traps are extremely sophisticated. Prey brush against trigger hairs connected to the trapdoor. The bladder, when "set", is under negative pressure in relation to its environment so that when the trapdoor is mechanically triggered, the prey, along with the water surrounding it, is sucked into the bladder. most spcisies of bladderwort in Souith Carolina are floating and not attached. This makes it extremely difficult to control, due to the plant biomass free floating.


Herbicide Management Options:


Chemical Control: Most aquatic herbicides do not provide seasonal control to Bladderwort. Herbicides that provide partial control consist of Diquat and Sonar

Biological Management Options:

 Grass Carp: will consume Bladderwort. Grass carp stocking rates to control Bladderwort are 20 grasscarp per surface acre of plant biomass. In South Carolina, only Triploid Grass Carp are legal and a permit from the South Carolina Department of Natural Resources is required. AMS is licensed to provide these permits for you.