Research Summary Abstract
From 2011 through 2016, IR-4 has completed 116 trials evaluating indaziflam granular formulations for crop safety. The data contained in this report was generated to register the use of indaziflam on and around ornamental horticulture plants with over-the-top applications. The rates tested were 0.045, 0.089 and 0.178 pounds active ingredient per acre (lb ai per A) as the 1X, 2X and 4X rates. The indaziflam 0.03%G formulation was applied to 16 plant genera or species, the Marengo G formulation was applied to 30 crops. Of these crops, 8 exhibited no or minimal transient injury after application at all three rates including Aucuba japonica,
Berberis sp., Liriope sp., Ophiopogon japonicus, Rhododendron sp., Rosa sp., Taxus media and certain Viburnum species. The remaining crops evaluated have only been screened in 1 or two trials or exhibited minimal to significant injury. Further testing is required on many species before a conclusion can be made confirming crop safety.