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Plant Identification
 

Plant Identification  --  Emergent Weeds  -- Pickerelweed

PICKERELWEED (Pontederia cordata)


Treatment Tips: Control should be initiated before dense stands of this plant begin to encroach into the water.


Description: Heart-shaped leaves with curving veins parallel to the leaf margin. Flowers are violet-blue and borne on the end of the stem above the leaf. Plants grow up to 4 feet (1.2 m) tall. Reproduces from rootstocks and seeds.


Distribution: Common throughout United States.
Recommended Control Method: For areas less than 1 acre, mix 6.5 oz.of Weedtrine-D with 1 gallon of water plus non-ionic surfactant. 10 gallons of solution will treat 1/10 acre.
OR
For areas larger than 1 acre, mix 1 gallon of Reward in 100 gallons of water plus non-ionic surfactant. Solution will treat 1 acre.
Alternate Control Methods: 2,4-D liquid: Mix 1 ounce of 2,4-D per gallon of water plus surfactant (see label). 75 gallons of solution will treat 1 acre. Early season treatment only.
Shore-Klear: Mix 1 ounce of Shore-Klear per gallon of water, add non-ionic surfactant. 100 gallons of solution will treat 1 acre. Late season treatment only.



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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