Mills, Jonty, Sarah Jackman, Chikako van Koten, and Michael Cripps. 2020. “The Leaf-Feeding Beetle, Cassida Rubiginosa, Has No Impact on Carduus Pycnocephalus (slender Winged Thistle) Regardless of Physical Constraints on Plant Growth”. New Zealand Plant Protection 73 (November):49-56. https://doi.org/10.30843/nzpp.2020.73.11722.