Mcneill, M., Hume, D., Ashby, R., Ashby, M., Brandon, P., Guscott, P., Tosswill, B. and Barton, R. (2007) “Ryegrass production in Wairarapa, New Zealand: is biological control of Argentine stem weevil important?”, NZGA: Research and Practice Series, 13, pp. 301–306. doi: 10.33584/rps.13.2006.3148.