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  2. Cirsium arvense - Wikipedia

    en.wikipedia.org/wiki/Cirsium_arvense

    Applying herbicide: Herbicides dominated by phenoxy compounds (especially MCPA) caused drastic declines in thistle infestation in Sweden in the 1950s. [12] MCPA and clopyralid are approved in some regions. Glyphosate is a non-selective herbicide that can be used when the plant has grown a few inches tall, where the herbicide can be absorbed by ...

  3. Weeds Act 1959 - Wikipedia

    en.wikipedia.org/wiki/Weeds_Act_1959

    The Creeping Thistle is a common resilient perennial plant found in grasslands throughout the United Kingdom. Characterised by spined lobed leaves, it stands up to one metre high and blooms with light purple flowers between July and September.

  4. Cirsium vulgare - Wikipedia

    en.wikipedia.org/wiki/Cirsium_vulgare

    Spear thistle is designated an "injurious weed" under the UK Weeds Act 1959, [19] and a noxious weed in Australia [18] [20] [21] and in nine US states. [22] Spread is only by seed, not by root fragments as in the related creeping thistle C. arvense. It is best cleared from land by hoeing and deep cutting of the taproot before seeds mature ...

  5. Clopyralid - Wikipedia

    en.wikipedia.org/wiki/Clopyralid

    Clopyralid is in the picolinic acid family of herbicides, which also includes aminopyralid, picloram, triclopyr, and several less common herbicides. [ 2 ] [ 3 ] For control of creeping thistle, Cirsium arvense , a noxious, perennial weed, clopyralid is one of the few effective herbicides available.

  6. 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.

  7. Cirsium - Wikipedia

    en.wikipedia.org/wiki/Cirsium

    Cirsium vulgare (spear thistle) is listed in the United States (where as a non-native invasive species it has been renamed "bull thistle") as a noxious weed in nine states. [6] Some species in particular are cultivated in gardens and wildflower plantings for their aesthetic value and/or to support pollinators such as bees and butterflies.

  8. British NVC community OV25 - Wikipedia

    en.wikipedia.org/wiki/British_NVC_community_OV25

    British NVC community OV25 (Urtica dioica - Cirsium arvense community) is one of the open habitat communities in the British National Vegetation Classification system.It is one of four tall-herb weed communities.

  9. Pesticide formulation - Wikipedia

    en.wikipedia.org/wiki/Pesticide_formulation

    By far the most frequently used products are formulations for mixing with water then applying as sprays. Water miscible, older formulations include: EC Emulsifiable concentrate; WP Wettable powder; SL Soluble (liquid) concentrate; SP Soluble powder; Newer, non-powdery formulations with reduced or no use of hazardous solvents and improved ...

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