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  1. Xenospiza

    Japanese Knotweed

    Thanks for the update Stuart.
  2. Xenospiza

    Japanese Knotweed

    There is a PhD thesis available from Imperial College which notes that the first CABI trials had less impact than expected: https://spiral.imperial.ac.uk/bitstream/10044/1/23232/1/Clewley-GD-2015-PhD-Thesis.pdf "There were demonstrable impacts of A. itadori herbivory on F. japonica within a...
  3. Xenospiza

    Japanese Knotweed

    The Dutch are actually following a ten-year-old British example. "Aphalara itadori is a highly specific sap sucker and was released in England in 2010 as a biocontrol agent" (https://www.cabi.org/isc/datasheet/23875#tosummaryOfInvasiveness)
  4. Xenospiza

    Japanese Knotweed

    There are also good examples, such as the weevils released in the USA to fight purple loosestrife. There are no close relatives of Japanese knotweed which aren't invasives as well (e.g. Giant knotweed).
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