You Are Here: Management Updates 2003 Archive September 9, 2003

Date: September 9, 2003
Category: Diseases
Subject: New Fungicide, Fungicide Chart Updated

BASF has received EPA approval for a new fungicide, Emerald™ (active ingredient: boscalid). It does not yet have state registration in all states (e.g. NY and MA), so check with your local distributors before use. Emerald™ is labeled for dollar spot and bentgrass dead spot. It is an important new tool for dollar spot management because it is a new chemistry. It actually belongs to the same chemical group as flutolanil (ProStar™), which does not control dollar spot. It is a penetrant chemical with upward movement. It should be used in rotation with penetrant (systemic) fungicides from different chemical groups and contacts such as chlorothalonil to avoid resistance. It is registered for golf course use only.

Emerald™ has been added to the UMass Extension Turf Fungicide Chart. To download the updated version of the chart, visit the Online Publications section of this web site.

- Submitted by: Dr. Gail Schumann