Oregano Oil Crop Safety – 2014

Research Summary Abstract

From 2010 to 2013, IR-4 completed 28 trials on Bryophyter (Oregano oil). The data contained in this report was generated to register uses of active ingredient on and around ornamental horticulture plants with broadcast applications, including over the top of established plants. The Bryophyter rates in this testing program were at 1 and 2 % active ingredient as the 1X and 2X rates. It had been applied to 21 plant genera or species. Results showed Bryophyter causing no injury when applied to these crops in the dormant stage of growth. Of these genera and species, none exhibited no or minimal transient injury after the second application at both rates. Seven (7) crops showed significant injury after the second application. Of the fourteen (14) crops that still need additional information, there are eight (8) genera or species in which one trial did not show significant injury at 1X and 2X rates, and two (2) genera/species showing variable response at the 1X rate.

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