The current status of Argentine stem weevil (&lt;i&gt;Listronotus bonariensis&lt;/i&gt;) as a pest in the North Island of New Zealand

Popay, Alison J.; McNeill, M.R.; Goldson, S. L.; Ferguson, C. M.

doi:10.30843/nzpp.2011.64.5962

Cited by 26 publications

(23 citation statements)

References 26 publications

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“…Further, this has coincided with reports of increased pasture damage by the weevil (e.g. Popay et al 2011).…”

Section: Introductionsupporting

confidence: 80%

Effect of Epichlo endophyte strains in Lolium spp cultivars on Argentine stem weevil parasitism by Microctonus hyperodae

Goldson¹,

Tomasetto²,

Popay³

2015

NZPP

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This paper reports on an extensive field investigation conducted at Lincoln during the 2014-2015 summer/early autumn. This aimed to assess the effects of a range of novel Epichloë endophytes when present in different cultivars of Lolium spp. on parasitism rates by the biological control agent, Microctonus hyperodae, in Listronotus bonariensis (i.e. the Argentine stem weevil). Results for the entire summer, and including all treatment combinations, did not find any significant differences in parasitism in L. bonariensis populations. However, in the early autumn, independent of the endophytes present, significantly higher levels of parasitism were found in a tetraploid Lolium multiflorum cultivar and a tetraploid L. perenne selection compared to the L. perenne cultivars. Whether this finding has any bearing on a possible mechanism of weevil resistance is discussed.Effect of Epichloë endophyte strains in Lolium spp. cultivars on Argentine stem weevil parasitism by Microctonus hyperodae.

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“…Further, this has coincided with reports of increased pasture damage by the weevil (e.g. Popay et al 2011).…”

Section: Introductionsupporting

confidence: 80%

Effect of Epichlo endophyte strains in Lolium spp cultivars on Argentine stem weevil parasitism by Microctonus hyperodae

Goldson¹,

Tomasetto²,

Popay³

2015

NZPP

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“…; Popay et al . ), is a suitable host for insect pests attacking poaceous crops. Although only a few insects, such as the Argentine stem weevil, Listronotus bonariensis (Popay et al .…”

Section: Introductionmentioning

confidence: 99%

“…Although only a few insects, such as the Argentine stem weevil, Listronotus bonariensis (Popay et al . ), have been recognized as serious pests of Italian ryegrass, farmers usually do not care about insect pests on Italian ryegrass because most pests cause very little economic loss. Therefore, many serious insect pests of other poaceous crops can utilize (i.e.…”

Section: Introductionmentioning

confidence: 99%

Dynamics of Neotyphodium uncinatum and N -formylloline in Italian ryegrass, and their relation to insect resistance in the field

Matsukura

Shiba

Sasaki³

et al. 2013

J Appl Microbiol

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Aims: A fungal endophyte, Neotyphodium uncinatum, accumulates N-formylloline, which is toxic to Hemipteran insects, in Italian ryegrass. This study aimed to clarify the dynamics of N. uncinatum and N-formylloline in Italian ryegrass, and their relationship to insect resistance. Methods and Results: Changes in the density and localization of N. uncinatum and N-formylloline in N. uncinatum-infected Italian ryegrass were examined by real-time PCR and gas chromatography, respectively. Neotyphodium uncinatum multiplied on pseudostems at the flowering stage, and then increased on inflorescences at the ripening stage. On the other hand, N-formylloline accumulated heavily in inflorescences and leaf blades, but lightly in pseudostems at the ripening stage. In field experiments, N. uncinatum-infected Italian ryegrass suppressed the occurrence of Stenotus rubrovittatus, which fed on the inflorescences, but was not effective to Laodelphax striatellus, which do not necessarily prefer a particular plant tissue. Conclusion: Localization of N. uncinatum and N-formylloline were discordant in Italian ryegrass. The N. uncinatum-infected Italian ryegrass was effective to only insects that prefer to feed on particular plant tissues containing N-formylloline. Significance and Impact of Study: Our data implies that the relationship between insect habits and the dynamics of alkaloids in plants is important for the effective use of endophyte-infected crops.

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“…These estimated losses have been considerably offset by the successful introduction of the parasitoid, Microctonus hyperodae Loan (Hymenoptera: Braconidae) in 1992 (Goldson et al, 1993 ) combined with the widespread adoption of endophytic ryegrass cultivars which provide resistance to L. bonariensis (Popay and Wyatt, 1995 ). Recent research, however, has indicated that M. hyperodae is becoming less effective as a biological control agent for reasons that are not entirely understood (Popay et al, 2011 ; Goldson et al, 2014 ).…”

Section: Introductionmentioning

confidence: 99%

Is the Invasive Species Listronotus bonariensis (Kuschel) (Coleoptera: Curculionidae) (Argentine Stem Weevil) a Threat to New Zealand Natural Grassland Ecosystems?

et al. 2016

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Listronotus bonariensis (Argentine stem weevil) is a stem-boring weevil that has become a major pasture pest in New Zealand, and cool climate turf grass in Australia. This species is also frequently found in native tussock grassland in New Zealand. Laboratory and field trials were established to determine the risk posed to both seedlings and established plants of three native grass species compared to what happens with a common host of this species, hybrid ryegrass (L. perenne X L. multiflorum). Adult weevil feeding damage scores were higher on Poa colensoi and Festuca novae-zelandiae than Chionochloa rigida. Oviposition was lower on P. colensoi than hybrid ryegrass, and no eggs were laid on F. novae-zelandiae. In field trials using the same four species established as spaced plants L. bonariensis laid more eggs per tiller in ryegrass in a low altitude pasture site than in ryegrass in a higher altitude site. No eggs were found on the three native grass species at the tussock sites, and only low numbers were found on other grasses at the low altitude pasture site. Despite this, numbers of adult weevils were extracted from the plants in the field trials. These may have comprised survivors of the original weevils added to the plants, together with new generation weevils that had emerged during the experiment. Irrespective, higher numbers were recovered from the tussock site plants than from those from the pasture site. It was concluded that L. bonariensis is likely to have little overall impact, but a greater impact on native grass seedling survival than on established plants.

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The current status of Argentine stem weevil (<i>Listronotus bonariensis</i>) as a pest in the North Island of New Zealand

Cited by 26 publications

References 26 publications

Effect of <i>Epichlo</i> endophyte strains in <i>Lolium</i> spp cultivars on Argentine stem weevil parasitism by <i>Microctonus hyperodae</i>

Effect of <i>Epichlo</i> endophyte strains in <i>Lolium</i> spp cultivars on Argentine stem weevil parasitism by <i>Microctonus hyperodae</i>

Dynamics of Neotyphodium uncinatum and N -formylloline in Italian ryegrass, and their relation to insect resistance in the field

Is the Invasive Species Listronotus bonariensis (Kuschel) (Coleoptera: Curculionidae) (Argentine Stem Weevil) a Threat to New Zealand Natural Grassland Ecosystems?

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