Field Horsetail, also known as Equisetum, is a tough weed species in field ornamental production. It an herbaceous perennial weed which is native to temperate regions of the Northern Hemisphere and it is a spore-bearing plant. At MSU, IR4 herbicide efficacy trial has been performed where several herbicides have been tested for Field Horsetail control. In this presentation, audience will get an overview of the IR4 Equisetum herbicide efficacy trial results.

In addition to that, the presentation will also focus on important herbicides (both preemergence and postemergence) that are commonly used in nurseries and landscapes and uses of adjuvant and surfactants to improve herbicide program.