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The bionomics of an invasive species Sitona lepidus during its establishment in New Zealand

Published online by Cambridge University Press:  14 December 2009

P.J. Gerard*
Affiliation:
AgResearch, Ruakura Research Centre, Private Bag 3123, Hamilton3240, New Zealand
S.L. Goldson
Affiliation:
AgResearch, Private Bag 4749, Christchurch8140, New Zealand
S. Hardwick
Affiliation:
AgResearch, Private Bag 4749, Christchurch8140, New Zealand
P.J. Addison
Affiliation:
AgResearch, Ruakura Research Centre, Private Bag 3123, Hamilton3240, New Zealand
B.E. Willoughby
Affiliation:
AgResearch, Ruakura Research Centre, Private Bag 3123, Hamilton3240, New Zealand
*
*Author for correspondence Fax: 64 7 838 5073 E-mail: [email protected]

Abstract

The egg, larval, pupal and adult abundance of the clover root weevil Sitona lepidus Gyllenhal (Coleoptera: Curculionidae) was monitored at three sites for the first ten years following the discovery of this exotic pest in the Waikato region of New Zealand. The species went through an initial boom and bust cycle at two sites, with populations reaching up to 1800 larvae m−2. Thereafter, winter larval populations were relatively stable, ranging between 450–750 m−2. Unlike in the Northern Hemisphere, S. lepidus was found to have two generations a year in the Waikato region of New Zealand. Pasture white clover content at the time of peak adult numbers was positively related to the subsequent peak larval populations for each generation. The factors contributing to the emergence of S. lepidus as one of the most important pasture pests in New Zealand are discussed.

Type
Research Paper
Copyright
Copyright © Cambridge University Press 2009

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References

Addison, P.J., Willoughby, B.E., Hardwick, S. & Gerard, P.J. (1998) Clover root weevil: observations on differences between 1997 and 1998 summer populations in the Waikato. pp. 14 in Proceedings of the 51st New Zealand Plant Protection Conference. New Zealand Plant Protection Society, 1113 August 1998, Hamilton, NZ.Google Scholar
Barker, G.M. & Addison, P.J. (1989) Sampling Argentine stem weevil Listronotus bonariensis (Kuschel) populations in pasture: the soil-dwelling stages. New Zealand Journal of Agricultural Research 32, 95–103.Google Scholar
Barker, G.M. & Addison, P.J. (2006) Early impact of endoparasitoid Mictoctonus hyperodae (Hymenoptera: Braconidae) after its establishment in Listronotus bonariensis (Coleoptera: Curculionidae) populations of northern New Zealand pastures. Biological and Microbial Control 99, 273287.Google ScholarPubMed
Barker, G.M., Addison, P.J., Firth, A.C. & Barratt, B.I.P. (1996) Sitona lepidus Gyllenhal newly established in New Zealand: assessment of distribution in the North Island. pp. 226269 in Proceedings of the 49th New Zealand Plant Protection Conference. New Zealand Plant Protection Society, 1315 August 1996, Nelson, NZ.Google Scholar
Barlow, N.D. & Goldson, S.L. (2002) Alien invertebrates in New Zealand. pp. 195216in Pimental, D. (Ed.) Biological Invasions. New York, USA, CRC Press.CrossRefGoogle Scholar
Barratt, B.I.P., Barker, G.M. & Addison, P.J. (1996) Sitona lepidus Gyllenhal (Coleoptera: Curculionidae), a potential clover pest new to New Zealand. New Zealand Entomologist 19, 2330.CrossRefGoogle Scholar
Caradus, J.R., Hay, R.J.M. & Woodfield, D.R. (1996) The positioning of white clover cultivars in New Zealand. Agronomy Society of New Zealand Special Publication 11, 4549.Google Scholar
Clements, R.O. & Murray, P.J. (1993) Sitona damage to clover in the UK. pp. 260264 in Proceedings of the 6th Australasian Grassland Invertebrate Ecology Conference. AgResearch Ltd, 8–10 February 1993, Hamilton, NZ.Google Scholar
Crush, J.R., Ouyang, L., Gerard, P.J. & Rasmussen, S. (2007) Effect of clover root weevil larvae on four annual forage legumes. Proceedings of the New Zealand Grassland Association 69, 213217.CrossRefGoogle Scholar
Crush, J.R., Gerard, P.J., Ouyang, L. & Wilson, D.J. (2008) Effect of clover root weevil and moisture stress on subterranean, balansa, Persian, arrowleaf and white clovers. Proceedings of the New Zealand Grassland Association 70, 255257.CrossRefGoogle Scholar
Culik, M.P. & Weaver, J.E. (1994) Seasonal crawling activity of adult root-feeding insect pests (Coleoptera: Curculionidae; Scolytidae) of red clover. Environmental Entomology 23, 6875.CrossRefGoogle Scholar
Eerens, J.P.J. & Hardwick, S. (2003) Factors affecting clover root weevil (Sitona lepidus) numbers and clover production. New Zealand Journal of Agricultural Research 46, 305310.CrossRefGoogle Scholar
Eerens, J.P.J., Willoughby, B.E., Kettlewell, F.J., Hardwick, S. & Bay, S. (1998) The clover root weevil in northern pastures: on-farm observations of its impact on white clover. Proceedings of the New Zealand Grassland Association 60, 287290.CrossRefGoogle Scholar
Gerard, P.J. (2001) Dependence of Sitona lepidus (Coleoptera: Curculionidae) larvae on abundance of white clover Rhizobium nodules. Bulletin of Entomological Research 91, 149152.CrossRefGoogle ScholarPubMed
Gerard, P.J. & Arnold, E.D. (2002) Influence of climate regime on clover root weevil adult survival and physiology. New Zealand Plant Protection 55, 241245.CrossRefGoogle Scholar
Gerard, P.J., Addison, P.J., Hardwick, S. & Willoughby, B.E. (1999) Establishment of the invader: insights into life history and biology of Sitona lepidus in the Waikato region of New Zealand. pp. 4351 in Proceedings of the 7th Australasian Conference on Grassland Invertebrate Ecology. CSIRO Entomology, 4–6 October 1999, Wembley, Australia.Google Scholar
Gerard, P.J., Hackell, D.L. & Willoughby, B.E. (2004) Insights into clover root weevil larval feeding. pp. 4957 in Proceedings of the 8th Australasian Conference on Grassland Invertebrate Ecology. AgResearch Ltd, 14 June 2004, Lincoln, NZ.Google Scholar
Gerard, P.J., Crush, J.R. & Hackell, D.L. (2005) Interaction between Sitona lepidus and red clover lines selected for formononetin content. Annals of Applied Biology 147, 173181.CrossRefGoogle Scholar
Gerard, P.J., McNeill, M.R., Barratt, B.I.P. & Whiteman, S.A. (2006) Rationale for release of the Irish strain of Microctonus aethiopoides for biocontrol of clover root weevil. New Zealand Plant Protection 59, 285289.CrossRefGoogle Scholar
Gerard, P.J., Hackell, D.L. & Bell, N.L. (2007) Impact of clover root weevil Sitona lepidus (Coleoptera: Curculionidae) larvae on herbage yield and species composition in a ryegrass-white clover sward. New Zealand Journal of Agricultural Research 50, 381392.CrossRefGoogle Scholar
Gerard, P.J., Eden, T.M., Wilson, D.J. & Burch, G. (2008) Distribution of the clover root weevil biocontrol agent in the North Island of New Zealand. New Zealand Plant Protection 60, 2430.CrossRefGoogle Scholar
Goldson, S.L., Frampton, E.R. & Jamieson, P.D. (1986) Relationship of Sitona discoideus (Coleoptera: Curculionidae) larval density to September–October potential soil moisture deficits. New Zealand Journal of Agricultural Research 29, 275279.CrossRefGoogle Scholar
Goldson, S.L., Phillips, C.B., McNeill, M.R. & Barlow, N.D. (1997) The potential of parasitoid strains in biological control: observations to date on Microctonus spp. intraspecific variation in New Zealand. Agriculture, Ecosystems & Environment 64, 115124.CrossRefGoogle Scholar
Hardwick, S., Addison, P.J., Eerens, J.P.J., Gerard, P.J. & Willoughby, B.E. (2004) Factors influencing the rate of spread and impact of clover root weevil (Sitona lepidus Gyllenhal) (Coleoptera: Curculionidae) in New Zealand. pp. 147154 in Proceedings of the 8th Australian Conference on Grassland Invertebrate Ecology. AgResearch Ltd, 14 June 2004, Lincoln, NZ.Google Scholar
Kean, J.M., Phillips, C.B., McNeill, M.R., Hardwick, S., Vink, C.J., Eden, T.M. & Gerard, P.J. (2009) Exploring biological control to manage invading populations of clover root weevil (abstract). p. 98 in Proceedings of the 3rd International Symposium on the Biological Control of Arthropods. 8–13 February 2009, Christchurch, NZ.Google Scholar
Levesque, C. & Levesque, G.Y. (1994) Abundance and seasonal activity of weevils (Coleoptera: Curculionidae) in a raspberry plantation and adjacent sites in southern Quebec (Canada). Great Lakes Entomologist 27, 2337.Google Scholar
Leydlaw, A.S. & Mowat, D.J. (1991) Recent research on white clover (Trifolium repens L.) persistence in Northern Ireland. Herba 4, 2427.Google Scholar
Liebhold, A.M. & Tobin, P.C. (2008) Population ecology of insect invasions and their management. Annual Review of Entomology 53, 387408.CrossRefGoogle ScholarPubMed
Lodge, G.M., Murphy, S.R. & Harden, S. (2003) Effects of grazing and management on herbage mass, persistence, animal production and soil water content of native pastures. 1. A redgrass-wallaby grass pasture, Barraba, North West Slpoes, New South Wales. Australian Journal of Experimental Agriculture 43, 875890.CrossRefGoogle Scholar
Markkula, M. (1959) The biology and especially the oviposition of the Sitona Germ (Col., Curculionidae) species occurring as pests of grassland legumes in Finland. Valtion Maatalouskoetoiminnan Julkaisuja 178, 4174.Google Scholar
Mowat, D.J. & Clawson, S. (1996) Oviposition and hatching of the clover weevil Sitona lepidus Gyll. (Coleoptera: Curculionidae). Grass and Forage Science 51, 418.CrossRefGoogle Scholar
Mowat, D.J. & Shakeel, M.A. (1988a) The effect of pesticide application on the establishment of white clover in a newly-sown ryegrass/white clover sward. Grass and Forage Science 43, 371375.CrossRefGoogle Scholar
Mowat, D.J. & Shakeel, M.A. (1988b) The effect of some invertebrate species on the growth of white clover (Trifolium repens L.) in the laboratory. Grass and Forage Science 43, 405409.CrossRefGoogle Scholar
Murray, P.J. & Clements, R.O. (1994) Investigations of the host feeding preferences of Sitona weevils found commonly on white clover (Trifolium repens) in the UK. Entomologia Experimentalis et Applicata 71, 7379.CrossRefGoogle Scholar
Murray, P.J. & Clements, R.O. (1995) Distribution and abundance of three species of Sitona (Coleoptera: Curculionidae) in grassland in England. Annals of Applied Biology 127, 229237.CrossRefGoogle Scholar
Murray, P.J. & Clements, R.O. (1998) Transfer of nitrogen between clover and wheat: effect of root herbivory. European Journal of Soil Biology 34, 2530.CrossRefGoogle Scholar
Phillips, C.B., McNeill, M.R., Hardwick, S., Vink, C.J., Kean, J.M., Bewsell, D., Ferguson, C.M., Winder, L.M., Iline, I.I., Barron, M.C. & Stuart, B. (2007) Clover root weevil in the South Island: detection, response and current distribution. New Zealand Plant Protection 60, 209216.CrossRefGoogle Scholar
White, T.A. & Gerard, P.J. (2006) Modelling the farm scale impacts of clover root weevil herbivory. New Zealand Plant Protection 59, 312316.CrossRefGoogle Scholar
Willoughby, B. & Addison, P.J. (1997) Clover root weevil (Sitona lepidus) – a threat to the sustainability of white clover in New Zealand pastures? Proceedings of the New Zealand Grassland Association 59, 2327.CrossRefGoogle Scholar
Willoughby, B.E. & Hardwick, S. (1999) Effect of summer irrigation on population dynamics and reproductive status of adult Sitona lepidus in the Waikato. pp. 245249 in Proceedings of the 52nd New Zealand Plant Protection Conference. New Zealand Plant Protection Society, 1012 August 1999, Auckland, NZ.CrossRefGoogle Scholar
Willoughby, B.E., Glare, T.R., Kettlewell, F.J. & Nelson, T.L. (1998) Beauveria bassiana as a potential biocontrol agent against the clover root weevil, Sitona lepidus. pp. 9–15 in Proceedings of the 51st New Zealand Plant Protection Conference. New Zealand Plant Protection Society, 1113 August 1998, Hamilton, NZ.CrossRefGoogle Scholar