Sonora (Clopyralid 3 Herbicide)

Sonora Herbicide (formerly named Clopyralid 3), manufactured by Alligare, is a effective post-emergent herbicide that controls difficult broadleaf weeds and brush to clear various terrains in a couple of days after application.

This effective emulsifiable concentrate contains the powerful active ingredient clopyralid 40.9%, to get rid of many noxious and invasive weeds and woody plants such as mesquite in rangelands, conifer sites, and more.

Sonora Herbicide is compatible with surfactants and adjuvants to boost control. It offers excellent and dependable control of emerged weeds like knapweeds before and after planting in forest sites or other terrains.

Tools Needed

To apply Sonora Herbicide, you will need a backpack sprayer, handheld pump sprayer, or skid sprayer. For large rangelands, the skid sprayer is suggested. When making smaller applications or spot treatments, we suggest a handheld or backpack sprayer.

How to Use

• Step 1: Determine how much Sonora you will need by first calculating the square footage of the treatment area. To do this you will need to measure and multiply the length and width of the target area. Sonara can be applied at a rate of 3/32 fl/ oz. to 1/4 fl. oz. in 1 gallon of water to cover 1,000 sq. ft. So, for example, if you had a 2,000 sq. ft. area to treat, you will need to mix 0.1875 to 0.5 fl. oz. of product in 2 gallons of water.
• Step 2: Fill your sprayer tank halfway with water and then add the required amount of Sonora Herbicide based on your calculations to the sprayer and mix. You can then add any compatible surfactants, adjuvants, or drift control agents to the spray tank. Shake well until mixed and you are ready to apply.
• Step 3: Spray the mixture to the target weeds or brush until wet but not to the point of runoff. Use a fan spray nozzle setting to evenly cover all of the targeted vegetation.

Where to Use

Sonora Herbicide is for use on non-cropland, non-turf, and non-residential areas. It is formulated to use on rangelands, job sites, construction sites, storage sites, along roadways, and other rights-of-way. It is ideal for use on areas that need to be bare ground.

When to Use

The ideal time when Sonora Herbicide should be applied is during healthy growth or flowering seasons. For the best results, Sonora should be applied no sooner than 3 to 4 days before unwanted vegetation emerges from the ground so the product makes contact with the leaf tissue.

Safety Information

Sonora Herbicide is safe to use around children and pets when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when mixing and applying this product.

Do not allow children and pets to enter treated areas until 24 hours have passed after application.

Special Considerations

Do not transfer livestock from treated grazing areas, or from feeding of treated hay, to sensitive broadleaf crop areas without first allowing 3 days of grazing on an untreated pasture (or feeding of untreated hay). If livestock are transferred within less than 3 days of grazing untreated pasture or eating untreated hay, urine and manure may contain enough clopyralid to cause injury to sensitive broadleaf plants.