As new information about fungicides becomes available, we will try to pass it on to you. Bruce Paulsrud, pesticide applicator training specialist in plant pathology, has compiled the following information, adapted from Agricultural Chemical News, January and February 1999. This registration status information should not be considered a pesticide recommendation by the University of Illinois Extension; instead, it is an update on changes occurring in the green industry—changes we think you should be aware of. For more information, consult the Pesticide Review Newsletter, which can be viewed at http://www.aces.uiuc.edu/~pse/newsletter/newsletter.html.|
Camelot (copper salts of fatty and rosin acids), Griffin. A new formulation developed for usage on ornamentals.
Chipco 26019 (iprodione), Rhone-Poulenc. The company has agreed to delete from their label all residential uses for this product.
Decree 50 WDG (fenhexamid), SePro. A new fungicide being developed for use on ornamentals to control botrytis.
Heritage (azoxystrobin), Zeneca. Received EPA approval to use for disease control on lawns and sports turf. Previously, it was only registered for golf courses and sod farms.
Junction (mancozeb/copper hydroxide), Griffin. A new formulation developed for use on ornamentals and turf.
Rovrol (iprodione), Rhone-Poulenc.The manufacturer has proposed to EPA to cancel all residential uses, and, on strawberries, to increase the preharvest interval from 0 days to “Do not apply after first flower.” On stone fruit, they propose to increase the 7-day preharvest interval up to “Do not apply after petal fall.” On table grapes, they propose reducing the application rate from four times per season to one application per season at early to midbloom. On turf and ornamentals, they propose limiting the maximum number of applications to six per year (24 lb. ai/acre/year) and to cancel all uses on herbaceous ornamental seed.
If you have questions about specific chemicals, it is always best to get the information straight from the manufacturer. Look at your label, find the company’s product information telephone number, and call them with your questions. (Nancy Pataky and Bruce Paulsrud)