Lontrel (clopyralid) was initially registered in 1998 for environmental horticulture uses. This initial label contained an extensive list of environmental horticulture plants where Lontrel could be used without causing phytotoxicity.
Category: Environmental Horticulture Program
Crop Vignette: Phlox
Phlox is a genus containing around sixty species in the plant family Polemoniaceae. Phlox consists of both perennial and annual plants that are mostly native to North America. The name phlox comes from the Greek word meaning “flame,” referring to the bright, colorful blooms they can produce.
2022 SOAR Award Winners
IR-4 is pleased to announce the winners of the 2022 SOAR Award. This award honors partners who exemplify Service, Outreach, Altruism, and Research, while supporting growers and the mission of the IR-4 Project.
F6123 Crop Safety – 2022
F6123 is a fungicide being developed by FMC for the control of diseases on environmental horticulture crops such as anthracnose, powdery mildew, black spot, rusts, leaf spots and other foliar diseases.
Mefentrifluconazole Crop Safety – 2022
Avelyo (mefentrifluconazole) is a fungicide developed by BASF that has been registered for use since May 2020. It is used for the control of diseases such as anthracnose, powdery mildew,
SP2700 Crop Safety – 2022
SP2700 is a new fungicide being developed by SePro for the control of diseases on environmental horticulture crops such as Alternaria, Cylindrocladium, Fusarium, Rhizoctonia, and Thielaviopsis.
2021 Annual Report and Executive Director Message
The 2021 IR-4 Project Annual Report and Year-End Summary are now available.
Crop Vignette: Clematis
Clematis have great variety in flower form, color, bloom season, plant height and fragrance; all factors that contribute to their reputation as “queen of the vines.”
Flumioxazin + Prodiamine Crop Safety – 2021
Fuerte (flumioxazin + prodiamine) has been registered in the United States since 2018. Starting in 2020, the IR-4 Project has been screening additional crops for their tolerance to over the top applications.
Iron HEDTA Crop Safety – 2021
Fiesta (Iron HEDTA) is a new herbicide currently labeled for post emergence broadleaf weed control on lawns (use on rights of way or non-crop areas), turf, golf courses, parks, playgrounds, cemeteries and athletic fields.