In an effort to provide weed management tools to growers of a wide variety of nursery ornamental crops this research was undertaken to expand the three pre-emergent herbicide labels:
Category: Environmental Horticulture Program
Clethodim Crop Safety – 2012
Clethodim, a grass herbicide, was first registered in the US as Select Herbicide for ornamental horticulture crops in 1983 with a limited crop list. From 1997 through 2007, the IR-4 Project completed
Rust Disease Efficacy Summary – 2012
From 2000 to 2011, numerous products representing 30 active ingredients were tested as foliar applications against several genera and species of pathogens causing rust on
Mite Efficacy Summary – 2012
At the IR-4 Ornamental Horticulture Program Workshop in 2009, Mite Efficacy was selected as a high priority project to obtain data supporting current and future registrations was discussed.
PGR Woody Branching – 2012
Hydrangeas are an increasingly popular group of shrubs which are prized for their flowers. Ornamental growers produce numerous varieties for the landscape, as well as, holiday florist markets.
PGR Herbaceous Branching – 2012
Three plant growth regulators, Augeo (dikegulac sodium), Configure (6-benzladenine) and Florel (ethephon), were tested to determine their potential for improving branching and quality
Mesotrione Crop Safety – 2011
From 2007 to 2011, IR-4 completed 144 trials on Mesotrione SC. The data contained in this report was generated to register uses of mesotrione on and around ornamental horticulture plants
Fluopicolide Crop Safety – 2011
Fluopicolide was registered as Adorn 4SC in the United States in 2008 for control of Pythium, Phytophthora and downy mildew in ornamental plants. State registrations in California and
Halosulfuron Crop Safety – 2011
Since 1995 IR-4 has completed 373 trials with products containing halosulfuron (Sedgehammer, Manage) on 132 crops. The data contained in this report were
Gladiolus Rust APHIS Research Summary
The project entitled “Determining the impact of registered and non-registered fungicides and disinfestants on Uromyces transversalis, the causal agent of