CHEMICAL UPDATE: Turfgrass Herbicides
January begins the first segment of Grounds Maintenance's “Chemical Update” series. Each year, we revise the Updates to bring you the most up-to-date and complete guide to pesticides registered for turf and landscape ornamentals. The chemical industry is ever-changing and new products are introduced every year, so our Chemical Updates offer a tool you can really use.
This month's Update covers turfgrass herbicides. We'll publish subsequent Updates throughout 2005, covering insecticides, fungicides, fertilizer/pesticide combinations, PGRs and nonselective chemicals.
USING THE UPDATES
The updates are in table format because this is the most practical way to take you from problem (the pest you're trying to control) to the solution (the chemical that will control the pest). This format also allows us to provide other useful information, such as characteristics of the chemical, form of application and plant tolerances, in a compact and easy-to-use format.
- Chemical names
We list chemicals by active ingredient because many are available in numerous brands. To see the selection of brands that use a given active ingredient, see “Herbicide sources,” on page 47.
- Chemical characteristics
This section indicates whether a chemical is a pre- or post-emergent, and selective or non-selective.
Next to this section, you'll find whether the chemical is also labeled for ornamental use.
You'll then see whether a chemical is applied in granular or spray form (or both) so you can find products that fit your preferred method of application.
- Plant tolerances
This section indicates which turfgrasses are labeled as tolerant to chemicals. It includes all the major turfgrass species.
- Weeds controlled
This section comprises the bulk of the Herbicide Update. Divided into two parts — grassy weeds and broadleaf weeds — this portion of the Update provides a complete listing of chemical options for nearly all significant turfgrass weeds. Simply find the weed in the list that runs across the top of the page and then follow that column down to see which chemicals can be used against the weed.
- Suppliers and contact information
Finally, you'll see a listing of brands and suppliers for all the chemicals listed in the Update. In addition, we provide phone numbers and Web site addresses for all the chemical suppliers listed, to aid you in pursuing additional product information.
- Red Type
You'll notice a few listings in red type. This indicates active ingredients or combinations of active ingredients that are new to the turf and ornamental market.
Because our list is so comprehensive and keeps growing, we have added some pages this year to space out Weeds Controlled: Broadleaf and make it easier to reference. This first three pages include all pre-emergence herbicides and the first part (alphabetically) of the post-emergence herbicides, and the weeds they control. The following three pages are the remaining (alphabetically) post-emergence herbicides and the weeds they control.
FOLLOW THE LABEL
Label instructions are the ultimate guide to proper use of pesticides. This Update lists products that are labeled — either specifically or more generally — in a manner that allows the uses indicated. However, many exceptions, special situations, and state and local restrictions may apply. In other words, just because we show here that a chemical can control a certain weed, that doesn't mean that you can use it on all sites, on all kinds of turfgrasses, or in all states or all conditions.
Therefore, use these tables for preliminary planning only. Always read and follow label instructions for each chemical you use. This Update is not a substitute for label information.
For a comprehensive list of the Chemical Update tables that accompany this article, go to our Industry Research resource at http://research.grounds-mag.com.
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