Ronstar G - 50 lb. Bag


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4.3 Rating: 4.3

4 Reviews | 5 Q&A 


  Size/Description Price/Ea. Qty  
Ronstar G - 50 lb. Bag Bag(s) (50 lbs.)

Buy 1: $137.95 each

Buy 2 or more: $136.02 each

Total Price: $0.00

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Ronstar G - 50 lb. Bag

Ronstar G is for commerical applicators only.

Ronstar G is a pre-emergent herbicide that controls a variety of annual broadleaf and annual grass weeds. Offering a conducive environment for sprigging, Ronstar controls weeds through their shoots rather than their roots, so it won't harm turfgrass roots in the process. In fact, Ronstar can be used for long residual pre-emergent weed control even in areas that may need to be sprigged or where turfgrass roots are already weakened due to pest, mechanical or other damage.

Active Ingredient: Oxadiazon 2%
Target pests: Crabgrass, Goosegrass, Field Sandbur, Annual Sedge, Annual Bluegrass, Virginia Buttonweed, Pigweed, Florida Pusley, Oxalis, Stinging Nettle, Carpetgrass. (See label for complete list)
For use in: Ronstar may be used on established perennial turf such as bluegrass, bertgrass, bermudagrass, buffalograss, perennial ryegrass, St. Augustine grass, seashore paspalum, fall fescue, and zoysiagrass, as well as in commercial nurseries and commercial landscapes.
Manufactured By: Bayer

Q: What's a DNA? And what makes Ronstar's mode of action unique?
A: Dinitroaniline (DNA) herbicides control weeds by halting root growth. But these products don't distinguish between weed roots and turf/ornamental roots, so they can inhibit turfgrass and ornamentals in treated areas. Another problem with these products has been herbicide resistance by goosegrass. Ronstar, on the other hand, contains the active ingredient oxadiazon, and is not in the DNA chemical class. Ronstar controls weeds through the shoots, not the roots. It does not harm turf and ornamental roots and is effective against DNA-resistant goosegrass.

Q: Is Ronstar effective on goosegrass and crabgrass?
A: Yes. However, it must be applied prior to emergence. Ronstar's performance is not significantly affected by temperature, and it will not lose its effectiveness if it's applied early. In fact, the opposite is true—an early application ensures excellent crabgrass and goosegrass control.

Q: Does Ronstar control Poa annua (annual bluegrass)?
A: Yes. Just one application of Ronstar provides control that's equal to or better than other products registered for use on Poa annua.

Q: What's the best way to ensure effectiveness after Ronstar is applied?
A: Thoroughly water the treated areas soon after it's applied. Water only the soil and don't incorporate the chemical by raking; Ronstar works best when the soil surface is not disturbed.

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4.3 star rating (4 reviews)

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  • 8 of 10 people found this review helpful:

    2 of 5 Stars  application rate
    By Bob in Eugene, Oregon on February 12, 2013

    Might be good to indicate the square footage this 50 Lb. sack will cover?

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  • 3 of 6 people found this review helpful:

    5 of 5 Stars  my purchase of Ronstar G-50 lb. bag
    By Thomas in San Antonio Texas on March 9, 2012
    Verified Purchase

    All my orders were recieved very fast. They were shipped Free. Thanks for this service.Good job.

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  • 2 of 5 people found this review helpful:

    5 of 5 Stars  Recent orders all 3.
    By Thomas in San Antonio Texas on March 28, 2012
    Verified Purchase

    This is a very good company to do business with. The items were shipped very quickly. all arrived with in 3 to 5 days . The shipping was FREE.Thanks for the great service.

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  • 2 of 5 people found this review helpful:

    5 of 5 Stars  Feedback on order
    By Thomas in San Antonio Texas on April 15, 2012
    Verified Purchase

    I recieved this item very fast. The item was just as advertised. Thanks for the great service.

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April 14, 2011Jennifer asked:

QIs Ronstar G toxic to pets and children?
If so, how long should the treated area be off limits? If the product was to enter a water source such as a pond, is it toxic to the fish?

ARonstar must only be used by commercial applicators and cannot be used on residential turfgrass. Applicators can apply Ronstar to landscape beds in residential areas. After the product has been applied, people and pets must wait until after the product has been watered in before they return to the treated areas. Ronstar is toxic to fish and other aquatic animals and should not be used in areas where runoff or direct application could enter the water. For more information on Ronstar please read the Ronstar Product Label.

12 of 16 people found this answer helpful.
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February 4, 2013Susan from Las Vegas, Nv asked:

QHow many square feet does one 50lb bag of Ronstar cover?

AThis will really depend on what you are treating for. In general one 50 lb bag will cover 11,000 sq ft - 22,000 sq ft. You can review the Ronstar product label to find the usage rate that fits your needs.

6 of 6 people found this answer helpful.
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July 23, 2011Stan asked:

QIs there any product that will neutralize ronstar? ( or pre-emergent weed ?)
We have a small dog & he developed a liver problem. How can we prevent recurrence?

AWe suggest you direct your question to the manufacturer.  The manufacturer is Bayer and they can reached at: Product Info Line: (800) 331-2867

3 of 5 people found this answer helpful.
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September 11, 2013Scott from Davie Fl asked:

QCan I use Ronstar G - 50 lb. Bag for the control of Pilea microphylla?

AYes, Ronstar G will control Pilea microphylla. In fact is is one of the best products on the market to do so. Please be sure to review the product label before application.

0 of 1 people found this answer helpful.
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January 27, 2012Wes from Fred., Va asked:

QWhen should Ronstar G be applied in Virginia in the spring (what month)?

AThe application of Ronstar G will completely depend on the type of weeds you are trying to prevent and the type of grass you are applying the product on and of course your location. We recommend that you contact your local cooperative extension office and speak to the master gardener on staff. He/she will be able to tell you the best time for the application as he/she will know when the weeds germinate in your region.

0 of 3 people found this answer helpful.
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