Items where Author is "Holtkamp, R.H."

2023

Jones, P.K., Day, M. D., McConnachie, A.J., Holtkamp, R.H., Conroy, J., Pidgeon, G., Clark, E., Clark, P., Fletcher, A. and Savage, M. (2023) The successful biological control of Cylindropuntia fulgida var. mamillata (A. Schott ex Engelm.) Backeb. (Cactaceae) (coral or boxing glove cactus) at two field sites in Queensland, Australia. Biological Control, 182 . p. 105235. ISSN 1049-9644

2022

McConnachie, A., Jones, P., Fletcher, A., Savage, M., Patterson, A., Holtkamp, R.H., Snow, E. L., Taylor, T. and et, a. (2022) A thorny tale: Cylindropuntia pallida (Hudson pear) biocontrol in New South Wales, Australia. In: 22nd Australasian Weeds Conference, 25 – 29 September 2022, Adelaide, South Australia.

2016

Jones, P.K., Holtkamp, R.H. and Day, M.D. (2016) The host range of four new biotypes of Dactylopius tomentosus (Hemiptera: Dactylopiidae) from southern USA and their potential as biological control agents of Cylindropuntiaspp.(Cactaceae) in Australia: Part II. Biocontrol Science and Technology . pp. 1-85. ISSN 0958-3157

2014

Jones, P.K., Holtkamp, R.H. and Day, M.D. (2014) Targeting biotypes of Dactylopius tomentosus to improve effective biocontrol of Cylindropuntia spp. in Australia. In: 19th Australasian Weeds Conference, September 2014, Tasmanian Weed Society, Hobart, Tasmania.