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Ragweed

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Ambrosia

Facts (generated by robot; please edit if you find it inaccurate)

  • This common ragweed is HIGHLY resistant to the ALS-inhibiting herbicide mode of action group.
  • Common ragweed is most easily distinguished by having staminate flower heads with green phyllaries that lack a black midvein and burs similar to those of giant ragweed, but considerably smaller (2-4 mm long).
  • Western ragweed is not drought resistant.
  • Ragweed Is KingWhen it comes to weed allergies, ragweed is the star.
  • ""As to why giant ragweed is such a problematic weed, part of it is that the weed's germination pattern has adapted to agriculture in the sense that, when compared to the wild type of giant ragweed, it appears germination occurs all season long," said Nice, who helped conduct the Purdue survey.
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