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Much of what you need to use any given herbicide responsibly is on the product label. You’ll find information on personal protective equipment (PPE), weeds controlled, how to properly mix herbicide solutions, disposal and storage instructions, and much more.
The herbicide label will also outline any special use precautions that need to be taken. For example, Milestone® specialty herbicide has language on the label that informs users that “[m]anure and urine from animals consuming treated grass or hay may contain enough active ingredient to cause injury to sensitive broadleaf plants.” A user who didn’t read the label may see desirable plant injury when using manure from these animals.
More information on using manure, treated compost or hay can be found at manurematters.com and aminopyralid stewardship.
Another example is found in the Garlon® 4 Ultra specialty herbicide label. To help avoid spray drift, “nozzles must always point backward parallel with the air stream and never be pointed downwards more than 45 degrees.”
Although the label is the law, accidents do happen, and you need to minimize your chance for exposure. Having a spill plan in place can make a big difference in how it affects the environment. An important part of this plan needs to include contacting the manufacturer in case of an emergency. For Dow AgroSciences, the number is 800-992-5994.
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When treating areas in and around roadside or utility rights-of-way that are or will be grazed or planted to forage, important label precautions apply regarding harvesting hay from treated sites, using manure from animals grazing on treated areas or rotating the treated area to sensitive crops. See the product label for details.
State restrictions on the sale and use of Garlon 4 Ultra apply. Consult the label before purchase or use for full details.
Always read and follow label directions.

