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PARTHENIUM HYSTEROPHORUS| CONGRESS WEED| వయ్యారి భామ |CARROT GRASS|

PARTHENIUM HYSTEROPHORUS| CONGRESS WEED| వయ్యారి భామ |CARROT GRASS|

PARTHENIUM HYSTEROPHORUS
CONGRESS WEED
CARROT GRASS
STAR GRASS
Parthenium hysterophorus is a species of flowering plant in the aster family, Asteraceae, that is native to the American tropics.Common names include Santa Maria Feverfew and Whitetop Weed. It is a common invasive species in India, Australia, and parts of Africa. P. hysterophorus invades all disturbed land, including farms pastures, and roadsides. In some areas, outbreaks have been of almost epidemic proportions, affecting crop production, livestock and human health. In India, it is locally known as “carrot grass” Congress Grass or Gajar Ghans. It was first present as a contaminant in imported wheat. It can trigger allergies and is a common cause of pollen allergy.[A beetle native to Mexico, Zygogramma bicolorata, was first introduced to India in 1984, and has since become widespread and well-established, and is capable of defoliating and killing this weed