Ask Our Experts – Frequently Asked Questions

Our unmatched experience in providing rangeland and pasture management solutions and services has earned us the reputation as the Range & Pasture Experts. We’ve attempted to answer many of the most common questions we receive about pasture improvement and our products. If you don’t find the answers to your specific Range & Pasture questions here, feel free to Ask Our Experts.

How much do Dow AgroSciences Range & Pasture products cost?
How can I identify the weeds in my pastures?
What is the shelf life of Dow AgroSciences Range & Pasture herbicide products?
How do I locate the closest dealer of Dow AgroSciences Range & Pasture products?
Which Dow AgroSciences Range & Pasture products require a license to purchase and/or apply?
How do I acquire a permit to purchase and apply restricted-use herbicides?
Is there any literature available on Dow AgroSciences Range & Pasture products?
What is the best time of year for herbicide applications?
Isn't mowing cheaper than chemical weed control?
If I can only budget for one, should I apply herbicide or fertilizer?

How much do Dow AgroSciences Range & Pasture products cost?

Selection, availability and pricing vary by retail dealer. Call or visit your local ag chemical dealer for product availability and pricing. Keep in mind that price does not necessarily equal value. Considerations, such as use rates, complete control vs. burndown, spectrum of control, residual activity, ease of use and grass tolerance, all help determine a product’s true value and your return on investment.

Back to Top

How can I identify the weeds in my pastures?

Our online Weed Guide is a good place to start. This easy-to-use guide will help you identify individual weeds and will offer you tips for and steps for effective treatment. If you need further assistance contact an agronomist with your local ag chemical dealer or your county Extension agent.

Back to Top

What is the shelf life of Dow AgroSciences Range & Pasture herbicide products?

As long as the seal on the container is unbroken, the efficacy is almost indefinite. If the seal is broken, it may be subject to some evaporation or volatilization over several years. But practically speaking, we’ve never seen a problem with efficacy or mixing of our Range & Pasture herbicides because of the age in the container. If the product has been mixed with water, there may be some settling out of ingredients over time. Be sure to agitate the mix before you spray.

Back to Top

How do I locate the closest dealer of Dow AgroSciences Range & Pasture products?

Most agricultural chemical dealers can obtain Dow AgroSciences Range & Pasture products for you through their traditional distributors. Just ask for the Dow AgroSciences product you need by name and your local dealer should have no problem obtaining it for you.

Back to Top

Which Dow AgroSciences Range & Pasture products require a license to purchase and/or apply?

Licensing requirements vary by state. However, Grazon® P+D, Surmount® and Tordon® 22K herbicides are federally Restricted Use Pesticides. Thus, Grazon P+D, Surmount and Tordon 22K require a license to sell, purchase and make applications. Contact your state department of agriculture or your county Extension agent for local requirements.

Back to Top

How do I acquire a permit to purchase and apply restricted-use herbicides?

Each state has specific regulations regarding applying herbicides. Contact your state licensing board, your county Extension office or your state department of agriculture for certification and licensing requirements.

Back to Top

Is there any literature available on Dow AgroSciences Range & Pasture products?

We offer many items available as downloadable PDF files in Newsletters and Literature.
You’ll also find rate cards and brochures at most dealerships where Dow AgroSciences 
Range & Pasture products are sold.

Back to Top

What is the best time of year for herbicide applications?

Since pastures typically contain a mix of weeds, a general recommendation is to treat weeds while they are actively growing. Fall is also an excellent time to treat knapweed, biennial thistles, such as musk or plumeless thistle, and perennial weeds, including Canada thistle and leafy spurge. Applications made during drought stress or other conditions preventing active growth may not provide acceptable control. You can find more specific treatment timing recommendations on the product specimen label.

Back to Top

Isn't mowing cheaper than chemical weed control?

No. While herbicide treatments vary depending on product, rate applied and application method, our Range & Pasture products offer longer-lasting, more complete results than mechanical control methods. According to Texas A&M University research, mowing costs $12 and $14 per acre per trip – with two trips needed annually on average. Even then, you're only giving weeds a haircut. Regrowth occurs quickly. Mowing or shredding also carries hidden costs. When forage grasses are mowed with brush and weeds, the grass is unavailable to livestock. Frequent mowing can weaken grass stands, open sod cover and increase weed populations. Mechanical control can also leave ruts, damage turf and increase soil erosion.

Back to Top

If I can only budget for one, should I apply herbicide or fertilizer?

Apply herbicide first, then fertilize the grass instead of weeds. Also consider the value of applying both. It's generally cheaper to grow forage grasses than to purchase additional forage or feed. And combining weed and feed generally can cut application costs in half.

Back to Top