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Pest Information



  • Latin Name: Coronopus Didymus
  • Common Name: Swinecress
  • Other Names: Wartcress, lesser wartcress, swine watercress.

Pest Details



A native of Europe, now found throughout the United States.


An annual reproducing only from seeds. It can be a problem in all situations, including landscape, crops, and roadsides or ditchbanks. The entire plant has a very strong, almost skunk-like odor.


Mature plants have many stems arising from the base, and may grow to 16 inches in height or may stay more prostrate and stay around only 2 inches in height. Stems begin prostrate but usually begin to bend upward at their ends to grow more ascending. Leaves are only about 1 inch long and are divided into narrow, toothed segments, giving them a feather-look. Lower leaves may be on short stalks while upper leaves are without stalks. Flowers are tiny, greenish to yellowish-white, and occur at intervals along the flower stems. As the seeds mature the flower falls, and the seed pod develops to about 1.5 inches in length and deeply wrinkled.

Characteristicts Important to Control:

An annual weed growing only from seeds.

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BC 728x90 Mar2020