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  2. Weed - Wikipedia

    en.wikipedia.org/wiki/Weed

    A weed is a plant considered ... that could be contaminated with weeds. ... breakthrough in weed control, was relied upon heavily when it was first ...

  3. Noxious weed - Wikipedia

    en.wikipedia.org/wiki/Noxious_weed

    A noxious weed, harmful weed or injurious weed is a weed that has been designated by an agricultural or other governing authority as a plant that is harmful to agricultural or horticultural crops, natural habitats or ecosystems, or humans or livestock. Most noxious weeds have been introduced into an ecosystem by ignorance, mismanagement, or ...

  4. Herbicide - Wikipedia

    en.wikipedia.org/wiki/Herbicide

    Contamination. Cases have been ... it was continuously and heavily relied upon for weed control. [64] This caused incredibly strong selective pressure upon weeds ...

  5. The dirty secret of California's legal weed - AOL

    www.aol.com/news/dirty-secret-californias-legal...

    The health stakes from contaminated weed are high. ... At the same time, the explosion in vape sales has created heavy demand for distillate. California vape sales tripled from 2020 to 2023 to ...

  6. Farmer polluted fields with contaminated compost

    www.aol.com/news/farmer-polluted-fields...

    A Leicestershire farmer polluted his fields with "heavily contaminated" compost created on site. William Clarke, of The Dales in Countesthorpe, pleaded guilty to five charges, including a failure ...

  7. List of hyperaccumulators - Wikipedia

    en.wikipedia.org/wiki/List_of_hyperaccumulators

    hyperaccumulators and contaminants : Al, Ag, As, Be, Cr, Cu, Mn, Hg, Mo, naphthalene, Pb, Se, Zn – accumulation rates ; Contaminant Accumulation rates (in mg/kg dry ...

  8. Agricultural pollution - Wikipedia

    en.wikipedia.org/wiki/Agricultural_pollution

    Contaminated machinery, livestock and fodder, and contaminated crop or pasture seed can also lead to the spread of weeds. [58] Quarantines (see biosecurity) are one way in which prevention of the spread of invasive species can be regulated at the policy level. A quarantine is a legal instrument that restricts the movement of infested material ...

  9. Weed control - Wikipedia

    en.wikipedia.org/wiki/Weed_control

    Weed control is a type of pest control, which attempts to stop or reduce growth of weeds, especially noxious weeds, with the aim of reducing their competition with desired flora and fauna including domesticated plants and livestock, and in natural settings preventing non native species competing with native species.