Academic literature on the topic 'Argentine stem weevil'

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Journal articles on the topic "Argentine stem weevil"

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Todd, J. H., L. A. Malone, H. S. Gatehouse, E. P. J. Burgess, J. T. Christeller, B. A. Philip, and E. L. Tregidga. "Effects of two protease inhibitors on larvae of Argentine stem weevil and clover root weevil." New Zealand Plant Protection 55 (August 1, 2002): 416–20. http://dx.doi.org/10.30843/nzpp.2002.55.3917.

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Protease inhibitors (PIs) cause mortality in a range of insects and transgenic plants expressing PIs have been protected against pest attack The effects of feeding two purified PIs to larvae of Argentine stem weevil (Listronotus bonariensis) and clover root weevil (Sitona lepidus) were investigated in laboratory bioassays The serine PI aprotinin and the cysteine PI E64 were administered continuously in artificial diets to neonate or oneweekold larvae Aprotinin had no effect on clover root weevil larvae but significantly inhibited growth of Argentine stem weevil larvae E64 caused significant mo
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Harrop, Thomas W. R., Marissa F. Le Lec, Ruy Jauregui, Shannon E. Taylor, Sarah N. Inwood, Tracey van Stijn, Hannah Henry, et al. "Genetic Diversity in Invasive Populations of Argentine Stem Weevil Associated with Adaptation to Biocontrol." Insects 11, no. 7 (July 14, 2020): 441. http://dx.doi.org/10.3390/insects11070441.

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Modified, agricultural landscapes are susceptible to damage by insect pests. Biological control of pests is typically successful once a control agent has established, but this depends on the agent’s capacity to co-evolve with the host. Theoretical studies have shown that different levels of genetic variation between the host and the control agent will lead to rapid evolution of resistance in the host. Although this has been reported in one instance, the underlying genetics have not been studied. To address this, we measured the genetic variation in New Zealand populations of the pasture pest,
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Goldson, S. L., M. C. Barron, J. M. Kean, and C. van Koten. "Argentine stem weevil (Listronotus bonariensis, Coleoptera: Curculionidae) population dynamics in Canterbury, New Zealand dryland pasture." Bulletin of Entomological Research 101, no. 3 (December 21, 2010): 295–303. http://dx.doi.org/10.1017/s0007485310000507.

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AbstractThe Argentine stem weevil (Listronotus bonariensis) was an economically important pest in New Zealand pastures until the release of the parasitoidMicroctonus hyperodae. This contribution uses historical data to investigate the regulation of the pest populations prior to, and somewhat during, the establishment of this parasitoid in dryland Canterbury, New Zealand. Thus, a significant goal of this study is to provide anL. bonariensispopulation dynamics baseline for any future work that aims to analyse the full effects ofM. hyperodaeon the weevil, now that equilibrium with the weevil host
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Gerard, P. J. "Ryegrass endophyte infection affects Argentine stem weevil adult behaviour and susceptibility to parasitism." New Zealand Plant Protection 53 (August 1, 2000): 406–9. http://dx.doi.org/10.30843/nzpp.2000.53.3654.

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Pot experiments were undertaken to investigate whether Argentine stem weevil Listronotus bonariensis adults placed on endophyteinfected or endophytefree perennial ryegrass (Lolium perenne) exhibited behaviour differences that may lead to differing susceptibility to attack by the endoparasitoid Microctonus hyperodae There was no difference (P>005) in the behaviour of weevils on pots of Nui ryegrass infected with either the wildtype endophyte Neotyphodium lolii or AR1 a N lolii selection high in peramine but low in other key alkaloids Although adults were offered no choice over 60 of the adul
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Stewart, A. V. "Perennial ryegrass seedling resistance to Argentine stem weevil." New Zealand Journal of Agricultural Research 28, no. 3 (July 1985): 403–7. http://dx.doi.org/10.1080/00288233.1985.10430445.

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Barker, G. M., and R. P. Pottinger. "Diel activity of the adult Argentine stem weevil." New Zealand Journal of Zoology 13, no. 2 (April 1986): 199–202. http://dx.doi.org/10.1080/03014223.1986.10422661.

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Phillips, C. B., I. I. Iline, M. W. A. Slay, M. R. McNeill, and R. P. Cane. "Distribution and biotypic composition of the Argentine stem weevil parasitoid in Hawkes Bay." New Zealand Plant Protection 57 (August 1, 2004): 298–303. http://dx.doi.org/10.30843/nzpp.2004.57.6925.

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The Argentine stem weevil parasitoid Microctonus hyperodae Loan (Hymenoptera Braconidae) was first released in Hawkes Bay at two locations in 1995 In 2000 eight Hawkes Bay sites situated up to ca 55 km from the original release sites were surveyed to determine the presence of M hyperodae The parasitoid was recovered from all eight sites with the proportion of weevils parasitised at each site ranging from 1 to 44 Although parasitoids originating from east and west of the South American Andes mountains had been introduced to both Hawkes Bay release locations in 1995 genetic markers based on vari
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Dymock, J. J., R. A. Prestidge, and D. D. Rowan. "The effects of lolitrem B on Argentine stem weevil larvae." Proceedings of the New Zealand Weed and Pest Control Conference 42 (January 8, 1989): 73–75. http://dx.doi.org/10.30843/nzpp.1989.42.10999.

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Prestidge, R. A., G. M. Barker, and R. P. Pottinger. "Observations on Argentine stem weevil mortalities in Volcanic Plateau pastures." New Zealand Entomologist 10, no. 1 (January 1987): 64–68. http://dx.doi.org/10.1080/00779962.1987.9722512.

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Goldson, S. L., J. R. Proffitt, M. R. McNeill, C. B. Phillips, N. D. Barlow, and D. B. Baird. "UnexpectedListronotus bonariensis(Coleoptera: Curculionidae) mortality in the presence of parasitoids." Bulletin of Entomological Research 94, no. 5 (October 2004): 411–17. http://dx.doi.org/10.1079/ber2004314.

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AbstractField enclosure and laboratory cage experiments designed to measure the impact of the parasitoidMicroctonus hyperodaeLoan on the Argentine stem weevil,Listronotus bonariensis(Kuschel) have shown that under high parasitoid pressure, there is significant weevil mortality without obvious parasitism. Parasitoid-exposed, but unparasitized portions of caged populations died at rates significantly higher than both the parasitized weevils from the same population and the unexposed controls. Unexpectedly, parasitized weevils had the lowest mortality rates (prior to larval parasitoid emergence).
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Dissertations / Theses on the topic "Argentine stem weevil"

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Stewart, Alan V. "Plant breeding aspects of ryegrasses (Lolium sp.) infected with endophytic fungi." Phd thesis, University of Canterbury. Lincoln College, 1987. http://theses.lincoln.ac.nz/public/adt-NZLIU20071005.172250/.

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Some aspects of the presence of systemic endophytic fungi in agriculturally important New Zealand grasses were studied in relation to plant breeding. Seedling resistance to adult Argentine stem weevil feeding in perennial ryegrass, Italian ryegrass and tall fescue was found to be related to the presence of their respective Acremonium endophytes in the seed rather than to plant genetic resistance. In addition a study of perennial ryegrass revealed that this resistance was independent of endophyte viability. The seedling resistance conferred by the endophyte of Italian ryegrass was found to be b
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