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Plant Identification -- Floating Plants -- Water Lettuce |
WATER LETTUCE
(Pistia stratioties)
Description: Plants consist of distinct rosettes**
of light yellow-green leaves approximately 4 to 8 inches
(10-20 cm) long. Tufts of long unbranched, fibrous roots
extend into the water from fleshy rhizome. Leaves have
definite veins radiating from leaf base toward leaf margin.
Distribution:
Commonly found in quiet water areas in Florida as well as isolated areas in other Gulf Coast states. |
Recommended
Control Method: For areas less than 1/2 acre,
tank mix 1 part Cutrine-Plus to 10 parts Weedtrine-D.
Apply at the rate of 70 to 95 ounces per 1/5 acre.*
OR
For areas in excess of 1 acre, tank mix 1 part Cutrine-Plus
to 2 parts Reward. Apply at the rate of 3/4 to 1
gallon per surface acre.**Dilute to facilitate even
distribution. Add non-ionic surfactant. Spray to
saturate foliage.
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Alternate
Control Methods: Reward: 1/2 to 3/4 gallon per
surface acre.
**Rosette: a dense basal cluster of leaves arranged
in circular fashion like the leaves of the common
dandelion. |
Descriptions and pictures are from the book "How to Identify and Control Water Weeds and Algae", Edited by James C. Schmidt, 5th edition revised 1998, copyright 1976 Applied Biochemists. |
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