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  2. Rhinocyllus conicus - Wikipedia

    en.wikipedia.org/wiki/Rhinocyllus_conicus

    Rhinocyllus conicus is a species of true weevil.It is best known as a controversial agent of biological pest control which has been used against noxious thistles in the genera Carduus, Cirsium, Onopordum, and Silybum.

  3. Clopyralid - Wikipedia

    en.wikipedia.org/wiki/Clopyralid

    Clopyralid (3,6-dichloro-2-pyridinecarboxylic acid) is a selective herbicide used for control of broadleaf weeds, especially thistles and clovers.Clopyralid is in the picolinic acid family of herbicides, which also includes aminopyralid, picloram, triclopyr, and several less common herbicides.

  4. Noxious weed - Wikipedia

    en.wikipedia.org/wiki/Noxious_weed

    A mature cotton thistle, an invasive weed in Australia.. 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.

  5. Salsola tragus - Wikipedia

    en.wikipedia.org/wiki/Salsola_tragus

    Kali tragus, the Russian thistle Leaves of a mature plant coming into flower, each leaf with one flower and two bracts in its axil. Salsola tragus is an annual forb.In habit, the young plant is erect, but it grows into a rounded clump of branched, tangled stems, each one up to about a metre long.

  6. Volunteers remove brush, thistles from Ryan Park Pond in ...

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  7. MCPA - Wikipedia

    en.wikipedia.org/wiki/MCPA

    MCPA is used as an herbicide, generally as its salt or esterified forms. Used thus, it controls broadleaf weeds, including thistle and dock, in cereal crops and pasture. It is selective for plants with broad leaves, and this includes most deciduous trees. Clovers are tolerant at moderate application levels.

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  9. List of pest-repelling plants - Wikipedia

    en.wikipedia.org/wiki/List_of_pest-repelling_plants

    They have been used in companion planting as pest control in agricultural and garden situations, and in households. Certain plants have shown effectiveness as topical repellents for haematophagous insects, such as the use of lemon eucalyptus in PMD, but incomplete research and misunderstood applications can produce variable results. [1]

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