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The zoophytophagous predator  Nesidiocoris tenuis  (Reuter) (Hemiptera: Miridae) is capable of inducing plant defenses in tomato due to its phytophagous behavior. These induced defenses, which include the release of herbivore-induced plant volatiles (HIPVs), have been proven to affect the oviposition behavior and reduce the subsequent performance of some tomato pests. However, the effect of induction of plant defenses by  N. tenuis  on the preference, development, and reproduction of the two-spotted spider mite  Tetranychus urticae  Koch (Acari: Tetranychidae) remains unknown. In this research,  T. urticae  did not show preference for the odor source emitted by intact tomato plants when compared with  N. tenuis -punctured plants and jasmonic acid (JA) deficient mutant tomato plants. Furthermore, the number of eggs laid by  T. urticae  on intact tomato plants or on  N. tenuis -punctured plants was similar. However, in a greenhouse experiment conducted to evaluate whether the defense induction mediated by  N. tenuis  had an effect on  T. urticae  the infestation of  T. urticae  was significantly reduced by 35% on those plants previously activated by  N. tenuis  when compared to the control. The expression of a JA-responsive gene that was upregulated and the transcription of the plant protein inhibitor II was higher on activated plants relative to the control. These results can serve as a basis for the development of new management strategies for  T. urticae  based on plant defense mechanisms induced from the phytophagous behavior of  N. tenuis .

Induced Tomato Plant Resistance Against Tetranychus urticae Triggered by the Phytophagy of Nesidiocoris tenuis