Environmental conditions affecting the strength of induced resistance against mites in cotton

  title={Environmental conditions affecting the strength of induced resistance against mites in cotton},
  author={Richard Karban},
Spider mites (Tetranychus urticae) were raised on cotton plants that had been damaged by a previous bout of mite feeding (T. turkestani) and on control plants that were previously not exposed to mites. The effect of induced plant responses upon mite populations was variable ranging from a 4-fold reduction in population growth to no difference at all. The strength of induced resistance was greatest when the population growth of mites was low for other, unknown, reasons. When mite population… CONTINUE READING

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