2011
DOI: 10.33584/rps.15.2011.3193
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Black beetle: lessons from the past and options for the future

Abstract: An outbreak of the pasture insect pest black beetle began in the Waikato and Bay of Plenty in 2007/8 and has persisted. The extent and severity of damage caused by black beetle during the current outbreak has focused farmer and researcher attention on methods to maintain persistent pasture now and in future outbreaks. This paper reviews previous research in combination with data from the current outbreak and relates these to current pasture management practice. The possibility of being able to predict the dist… Show more

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Cited by 20 publications
(28 citation statements)
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“…Poor persistence of newly sown species and rapid reversion to a poorly performing, weed-and insect pest-affected pasture are cited as major issues (Bewsell et al 2008;Kelly & Smith 2011;Tozer et al 2011b). This is particularly true in Bay of Plenty (BoP), Waikato and other northern North Island areas, where pastures have been subjected to recent dry summers with high insect pest and weed loads (e.g., Bell et al 2011;Tozer et al 2010a;Tozer et al 2010b). Farmers are also concerned that the claimed dry matter yield gains of new cultivars are unrealistic and do not correlate well with those achieved on commercial farms.…”
Section: Introductionmentioning
confidence: 99%
“…Poor persistence of newly sown species and rapid reversion to a poorly performing, weed-and insect pest-affected pasture are cited as major issues (Bewsell et al 2008;Kelly & Smith 2011;Tozer et al 2011b). This is particularly true in Bay of Plenty (BoP), Waikato and other northern North Island areas, where pastures have been subjected to recent dry summers with high insect pest and weed loads (e.g., Bell et al 2011;Tozer et al 2010a;Tozer et al 2010b). Farmers are also concerned that the claimed dry matter yield gains of new cultivars are unrealistic and do not correlate well with those achieved on commercial farms.…”
Section: Introductionmentioning
confidence: 99%
“…To investigate the relationship between El Niño and La Niña climate conditions and black beetle outbreaks, Southern Oscillation Index (SOI) measurements from 1930 to 2013 (NOAA 2013) were plotted against New Zealand black beetle population data reported in the literature (Todd 1959 and references therein;King et al 1981b and references therein;Popay & Baltus 2001;Popay & Thom 2009;Bell et al 2011). The beetle outbreaks each year were classified as being one of four events: "none" = no reported black beetle outbreaks; "pop > 40" = records of an isolated population >40/ m 2 ; "Local" = records of localised black beetle damage such as pasture pulling, and; "Mass" = mass flights and widespread damage across northern North Island districts.…”
Section: Influence Of La Niña Eventsmentioning
confidence: 99%
“…The dominant grass species in a paddock affects population growth: C 4 grasses, as well as ryegrasses (Lolium spp) without a deterrent endophyte, are favourable hosts (Blank & Olson 1988;King et al 1981a;Ball & Prestidge 1992). In contrast, adult feeding, and in turn survival and oviposition are reduced by ryegrasses containing standard, AR37, NEA2 or Endo 5 endophytes (Ball et al 1997;Bell et al 2011;Popay & Baltus 2001).…”
Section: Introductionmentioning
confidence: 96%
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