Frogbit

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Frogbit (Limnobium spongia) has two growth forms. The floating-leaved form has leathery, heart-shaped leaves that are deeply notched at the base and thick in the center. The emergent (out-of-water) leaved form has heart-shaped leaves that are not thick in the center and do not have a notch at the base of the leaf. Flowers are small and white, and grow on stalks about 1/3 as tall as the leaves.

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Frogbit is not common in Mississippi, except locally in acidic swamps or shallow ponds. This plant is seldom a problem. When overabundant, it can be controlled with the treatments listed on the treatments page.

Special care was taken to make certain that all herbicide treatments are registered with the Environmental Protection Agency for use in the manner described. Registrations of specific practices are often changed or deleted; therefore, treatments suggested in this information sheet may not remain current indefinitely. Read and observe the manufacturer's label to prevent misuse of a herbicide. It is not intended or proposed that usage of any given practice suggested in this information sheet be in violation with existing registration or manufacturer's label.

If you fail to carefully read and follow suggested treatments, you could cause extensive damage to the environment, crops, livestock or humans.