<i>Yersinia</i> sp (MH96) a potential biopesticide of migratory locust <i>Locusta migratoria</i> L


  • M.R. McNeill
  • M.R.H. Hurst




Locusta migratoria L is a recognised global pest that feeds on a wide range of graminaceous crops and pasture The activity of the novel entomopathogenic bacterium Yersinia sp (MH96) against L migratoria was investigated in the laboratory Locusta migratoria were allowed to feed on ryegrass (Lolium multiflorum) carrying Y sp residues and mortality was observed daily for 5 days At constant temperatures of either 235 or 37C Y sp caused 100 mortality of 1st instar L migratoria after 72 h At constant temperatures of 235C mortality amongst 2nd3rd instar L migratoria after 48 h was ca 34 rising to 100 mortality after 5 days When 3rd instar L migratoria were exposed to Y sp cultured at either 25C or 37C mortality was higher in individuals maintained at 235C compared to 37C This result was attributed to the phenology of the bacterium at elevated temperatures These initial studies indicate that Y sp has promise as a biopesticide against L migratoria especially against early instars




How to Cite

McNeill, M. and Hurst, M. 2008. &lt;i&gt;Yersinia&lt;/i&gt; sp (MH96) a potential biopesticide of migratory locust &lt;i&gt;Locusta migratoria&lt;/i&gt; L. New Zealand Plant Protection. 61, (Aug. 2008), 236–242. DOI:https://doi.org/10.30843/nzpp.2008.61.6848.




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