Wallis, D.R., P.W. Shaw, G.P. Walker, and F.H. MacDonald. 2016. “Establishment and Dispersal of Cotesia Rubecula a Larval Parasitoid of Pieris Rapae in the Nelson District”. New Zealand Plant Protection 69 (January): 319-19. https://doi.org/10.30843/nzpp.2016.69.5923.