Californian thistle and its variable response to the biological control agent <i>Sclerotinia sclerotiorum</i>
AbstractCalifornian 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
How to Cite
Smith, B., S.G. Casonato, A. Noble, and G. Bourd?t. “Gt”;. New Zealand Plant Protection 69 (January 8, 2016): 258–262. Accessed June 7, 2023. https://journal.nzpps.org/index.php/nzpp/article/view/5945.