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Monterey Weed Impede 32oz

4.7 out of 5 stars 31 customer reviews
| 17 answered questions

Price: $45.22 & FREE Shipping on orders over $49. Details
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32 Ounce
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  • Monterey Weed Impede 32oz A great pre-emergence herbicide for use on ornamentals, trees, roses, bulbs, ground covers, shrubs, rock gardens, driveways, and unplanted areas
  • Very economical to use, 1 quart treats 10-20,000 sq. ft
  • Lasts up to 6 months to control grasses, weeds, and you can tank mix with Remuda or Roundup in unplanted areas
  • Weed Impede with Surflan orzalin
  • A great pre-emergence herbicide for use around ornamentals
  • 16oz concentrate covers 5 to 10,000 square feet
  • A selective grass killer for weed control over the top of bedding plants, available in 16-ounce
  • Available in 22 ounce pack
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Frequently Bought Together

  • Monterey Weed Impede 32oz
  • +
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  • +
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Total price: $79.51
Buy the selected items together

Technical Details


Product Description

Size: 32 Ounce

Weed Impede with Surflan orzalin a great pre-emergence herbicide for use around ornamentals, trees, roses, bulbs, round covers, shrubs, rock gardens, driveways and more. 16-ounce concentrate covers 5 to 10,000 square feet. Control lasts up to 6 months. Tank mix with Remuda or Roundup in unplanted areas.

Product Information

Size:32 Ounce
Product Dimensions 5 x 8 x 9 inches
Item Weight 2.6 pounds
Shipping Weight 2.6 pounds (View shipping rates and policies)
Manufacturer Monterey
ASIN B0044FRPVO
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Item model number LG5135
Customer Reviews
4.7 out of 5 stars 31 customer reviews

4.7 out of 5 stars
Best Sellers Rank #27,948 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
#160 in Patio, Lawn & Garden > Gardening > Weed & Moss Control > Weed Killers

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Customer Reviews

Top Customer Reviews

Size: 32 Ounce Verified Purchase
I started using this product about 5 years ago and have excellent results. I use 3oz of Weed Impede diluted with water in a 16 oz Gilmour hose end sprayer in mid March. I set the dial setting at 1 1/2 oz per gallon. I can cover about 1500 square feet with this setting with plenty of activation water. Weeds are almost non existent with the exception of Prostrate Spurge. I think I may have better control of the Spurge if I spray twice a year in mid March and again in mid August. I spray directly on many shrubs, ferns and Scotch Moss. It seems to not hurt them. After spraying I turn on my yard sprinkler system and rinse of the plants.
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Size: 16 Ounce Verified Purchase
What can I say? It works. It seems like a small bottle for the amount it's supposed to cover. I used about 1.5 ounces per gallon...it should cover 5-10000 square feet and the area I had to cover was about 3000 square feet. I ended up using the whole bottle. It's a weird orange color, but thats a good thing as it doubles as a dye to tell you which areas you've already covered.

I mixed it up with some glyphosate (roundup) to create a pre and post emergent. Again, the dye addition really helped as I sprayed in the past using only the glyphosate, which had no dye, and I probably ended up double over spots or over spraying. With the dye, it was easy to see where I already sprayed.

2-3 weeks later, most of the weeds were dead. Though I assume that's because of the glyphosate since that's the post-emergence working. However, it's now been about 5 weeks and I haven't seen any other weeds pop up so I'm assuming that's the pre-emergent working? Hope so. I plan to buy another bottle and use it before weeds pop up this time (in Jan-Feb) so I can get those pesky HOA peeps off my back.
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Size: 32 Ounce Verified Purchase
Very Effective - After application you must wet surface to force the spray into the soil.
In my application last year I left an area unsprayed - many weeds came up, the sprayed area was weed free.
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Size: 16 Ounce
I have used this product for years. A local nursery recommended it and while it seems expensive, one pint is a year's supply for the average yard. Apply in the spring and again 5-6 months later. If you've ever used Preen, this is like liquid super-Preen. Wherever you spray it, seeds will not germinate, so don't put it anywhere you want to plant seeds. It works great around flowers and shrubs and even cracks in concrete. It looks like bright orange paint and even will temporarily stain a home foundation or concrete, but it eventually fades. It will also temporarily stain bark, rocks, etc. but that fades in a week or so. To me, the cost and temporary staining is well worth not having to battle weeds. Now if Amazon will just find a way to offer this as a Prime product....
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Size: 32 Ounce Verified Purchase
If you don't know about Weed Impede, you probably have dirty knees. That's because you're spending time weeding your flower beds all the time. Keep your knees pristine!

It really works. Follow the instructions, and you will see very few weeds. This works better and lasts far longer than Preen. Weed Impede concentrate looks like orange paint and appears to stain anything you spray it on. Concrete, wood, etc. but don't worry, it wears off in a few days. We use it in barked beds, cracks along the curb, etc. and it works like a charm. It blocks seeds from germinating, so don't be surprised if a few weeds pop up after you apply it, They were already starting to sprout when you sprayed.
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Size: 32 Ounce Verified Purchase
This stuff is great. I apply it once in the Spring and once in the Fall. I haven't seen a weed in years.
Remember it doesn't work on already germinated seeds so you will have to pull up a few weeds at first. After that, you are "home free", watching your neighbors pull up weeds all year.
It does not work on spurge, but all that takes is a squirt of Spectricide and no trace of it remains.Monterey Weed Impede Hose'Em All Nautral 2-In-1 Weed Killer/Control - 30 oz Conentrate LG5155
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By John L on January 25, 2013
Size: 32 Ounce Verified Purchase
I have been using this product for several years. Sprayed on desert landscaping it stops virtually all new growth from seeds, and doesn't hurt shrubs and cactus that are there. It may seem expensive, but it saves far more in weed killer cost.
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Size: 16 Ounce
I absolutely love using this pre-emergent. Ever since I started using this product 2 years ago I've maybe had 7 weeds to pick in my front yard. It may seem like it is kind of expensive, but to me it is worth it because now I don't have to use Roundup or have to spend time picking weeds. An additional benefit is that you can spray this close to your plants that are already growing and it doesn't do any damage to them. The only downside is that I live in Arizona and it doesn't rain very often and you have to have some water over this product to help get it soaked in. I end up having to wait a week and hope for rain and if it doesn't come I end up watering my rocks. Aside from that little inconvenience this stuff is perfect!
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