oa Journal of the Entomological Society of Southern Africa - The sensitivity of six colonies of the red spider mite, Tetranychus cinnabarinus (Boisd.), to amitraz



The response of five field strains and one laboratory strain of Tetranychus cinnabarinus to amitraz was tested using a slide dip bio-assay technique. The different strains of mites responded differently to amitraz suggesting possible resistance. However, due to non-parallelism of some of the probit lines the degree of resistance could not be fully quantified.


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