Fluopicolide Crop Safety – 2024

Calibrachoa flowers

Research Summary Abstract

Fluopicolide was registered as Adorn 4SC in the United States in 2008 for control of Pythium, Phytophthora and downy mildew in environmental horticulture plants. State registrations in California and New York occurred in 2010 and 2011, respectively. Adorn 4SC may be applied on container, bench, or bed grown ornamentals in greenhouses, lathehouses, shadehouses or outdoor landscapes, and on conifers including Christmas trees in outdoor landscapes. The commercial label contains a list of 22 ornamental plants exhibiting no or minimal injury. During 2008 to 2011, the IR-4 Project completed 84 trials on 24 environmental horticulture plant species or genera examining phytotoxicity related to drench and foliar applications of Adorn 4F. In all trials except one, treated plants exhibited minimal or no injury to drench and foliar applications. Sufficient trials showed 16 species or genera exhibiting minimal or no injury. Of these, 5 are already on the Adorn label; Acer palmatum, Begonia sp., Calibrachoa sp., Juniperus sp., Petunia sp, Pinus sp., Quercus sp., Syringa sp, Taxus sp, Thuja sp, and Viburnum sp. are the 11 crops not yet listed. Based on this information, it is recommended that these be added to the list of tolerant plants on the Adorn 4F label.

Link to Summary: Fluopicolide Crop Safety Summary