Californian thistle and its variable response to the biological control agent <i>Sclerotinia sclerotiorum</i>

Authors

  • B. Smith
  • S.G. Casonato
  • A. Noble
  • G. Bourd?t

DOI:

https://doi.org/10.30843/nzpp.2016.69.5945

Abstract

Californian thistle (Cirsium arvense) is a problematic weed particularly in permanent pastures The fungus Sclerotinia sclerotiorum has potential as a bioherbicide to control this weed but its variable efficacy in historical field trials suggest that there are differences in susceptibility to S sclerotiorum within the species To test this hypothesis the responses of 32 New Zealand provenances of C arvense to a foliageapplied myceliumonbarley preparation of S sclerotiorum were compared under common conditions Significant differences between provenances were found supporting the hypothesis that there is variation within C arvense in New Zealand in its susceptibility to S sclerotiorum Further work will examine differences in the efficacy of fungal isolates against different C arvense provenances

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Published

2016-01-08

How to Cite

[1]
Smith, B., Casonato, S., Noble, A. and Bourd?t, G. 2016. Californian thistle and its variable response to the biological control agent &lt;i&gt;Sclerotinia sclerotiorum&lt;/i&gt;. New Zealand Plant Protection. 69, (Jan. 2016), 258–262. DOI:https://doi.org/10.30843/nzpp.2016.69.5945.

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Papers