Fatty acid herbicides represent potential alternatives for managing glyphosate resistant weeds as well as an option for less environmental impacts for post emergent weed management. However, optimal use patterns have not been fully established. From 2020 to 2023, five different fatty
Category: Weed Science Efficacy
Nutsedge and Sedge Efficacy – 2023
Nutsedges and sedges (Cyperus sp.) are difficult to manage during the production of perennial environmental horticulture crops grown in containers or in the field. During the 2006 IR-4 Environmental Horticulture Workshop, a project was prioritized to screen for efficacious
Liverwort Efficacy – 2023
Liverworts (Marchantia sp.) are difficult to manage during the production of perennial environmental horticulture crops grown in containers. Liverworts are among the most serious weeds of container grown ornamentals.
Bittercress Efficacy – 2020
Nursery growers have had a longstanding battle to control weeds in environmental horticulture crops. Bittercress(Cardimine spp.), is one of the most difficult weeds to control
Spurge Efficacy Summary – 2020
Nursery growers have had a longstanding battle to control weeds in environmental horticulture crops. Spurge (Chamaesyce maculata), is one of the most difficult weeds to control
Oxalis Efficacy Summary – 2020
Nursery growers have had a longstanding battle to control weeds in environmental horticulture crops. Oxalis (Oxalis spp.) is one of the most difficult weeds to control in
Early Post Emergence Efficacy Summary – 2011
From 2008 through 2011, fourteen pre-emergent herbicides were tested across the United States through the IR-4 Ornamental Horticulture Program to determine whether they can control
Liverwort Efficacy Summary – 2012
Data in this report were generated to evaluate several products for post-emergent control of liverworts (Marchantia sp.). Liverworts are among the most serious weeds of container grown ornamentals.