The Best Pre-emergents Herbicides for 2023

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Pre-emergent herbicides are applied to lawns and gardens before weeds have a chance to sprout, making them an important part of any weed-prevention strategy. But with so many products on the market, it can be tough to know which one is right for your needs. Here’s a quick guide to help you choose the best pre-emergent herbicide for your lawn or garden.

Pre-emergent herbicides work by creating a barrier on the surface of the soil that prevents weed seeds from germinating. Many products use an active ingredient called diuron, which is effective at preventing a wide range of weeds. If you’re using pre-emergent herbicide in a garden, you’ll also want to choose a product that’s safe for use around vegetables and other sensitive plants.

Pre-emergent herbicides are most effective when applied before weeds start to grow in the spring. But depending on the product, they may also be effective at preventing fall and winter weeds. Be sure to read the label carefully to find out how often you need to reapply for the product.

With so many products on the market, choosing the best pre-emergent herbicide for your needs can be tough. But with a little research, you can find the right product to keep your lawn or garden weed-free all season long.

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What to Look for When Shopping for the Best Pre-Emergent Herbicide

Table of Contents show

Pre-emergent herbicides are designed to prevent weed seeds from germinating, and they’re an essential part of any weed control plan. But with so many products on the market, it can be tough to know which one is right for your needs. Here’s a quick guide to help you choose the best pre-emergent herbicide for your garden or lawn.

Active ingredient: The first thing to look at when choosing a pre-emergent herbicide is the active ingredient. This is the chemical that prevents weed seeds from germinating, so you’ll want to make sure that the product you choose contains an effective active ingredient. Some of the most common active ingredients in pre-emergent herbicides include siduron, isoxaben, and oxyfluorfen.

Selectivity: Another important thing to consider when choosing a pre-emergent herbicide is selectivity. This refers to the ability of the herbicide to kill weeds without harming desirable plants. If you’re using the herbicide in your garden, you’ll want to choose a product that’s selective enough to kill weeds without harming your vegetables or flowers.

Duration of control: The length of time that a pre-emergent herbicide will remain effective also varies by product. Some products will only last for a few weeks, while others can provide season-long control. If you’re looking for long-lasting weed control, be sure to choose a product with a longer duration of control.

Application method: Pre-emergent herbicides can be applied in several ways, including as a granular fertilizer, as a liquid spray, or as a soil drench. The best method for you will depend on the size of the area you’re treating and your personal preference.

Weed control: In addition to preventing weed seeds from germinating, pre-emergent herbicides can also help to control existing weeds. Look for a product that contains an active ingredient that’s known to be effective against the type of weeds you’re dealing with.

Safety: Be sure to read the label carefully to determine if the pre-emergent herbicide you’re considering is safe for use around pets and children. Some products can be quite toxic, so it’s important to choose one that’s safe for your family.

Form: You’ll need to decide what form of pre-emergent herbicide you want to use. Granular products are easy to apply and can be spread with a standard fertilizer spreader. Liquid sprays are also easy to apply, but they can be more difficult to control when applying them to large areas. Soil drenches are the most difficult to apply, but they’re also the most effective at preventing weed seeds from germinating.

Cost: Pre-emergent herbicides vary widely in price, so be sure to compare prices before making your final decision. You can find good quality products at a variety of price points, so don’t automatically assume that the most expensive option is the best one.

Longevity: Finally, you’ll need to consider how long the pre-emergent herbicide will last. Some products only provide short-term weed control, while others can last for several months. If you’re looking for long-term weed control, be sure to choose a product with a longer residual effect.

With these factors in mind, you should be able to find the best pre-emergent herbicide for your needs. Be sure to read the label carefully and follow the instructions to ensure safe and effective use.

Tips to use Pre-emergent Herbicides

Pre-emergent herbicides are an important tool in the fight against weeds, but they need to be used correctly for the best results. Here are a few tips to help you get the most out of your pre-emergent herbicide:

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1. Apply the herbicide before weed seeds have a chance to germinate. This is typically early spring, before the average last frost date in your area.

2. Be sure to follow the label directions carefully. Pre-emergent herbicides can be toxic if not used properly, so it’s important to read the label and follow the instructions carefully.

3. Make sure to apply the herbicide evenly over the entire area you’re treating. This will help to ensure that the herbicide is effective in preventing weed growth.

4. Apply the herbicide before you plant your garden. This will help to prevent weeds from getting a foothold and competing with your vegetables or flowers for resources.

5. Be sure to reapply the herbicide according to the label directions. Some products only provide short-term weed control, so it’s important to reapply them as needed to maintain efficacy.

My Top Picks

If you’re looking for the best pre-emergent herbicide to keep your garden free of weeds, you’ve come to the right place. I’ve rounded up a few of my favorites to help you make the best choice for your needs.

1# Quali-Pro Prodiamine 65 WDG: Best Overall

Looking for the best pre-emergent herbicide? Look no further than Quali-Prod Prodiamine 65 WDG! This product is extremely effective at preventing weeds from growing, and it’s also very affordable. Plus, it has a great reputation among homeowners and professionals alike. So if you’re looking for an unbeatable product, Quali-Pro Prodiamine 65 WDG is the way to go!

Here’s why I think this model stands out from the rest in its category:

Quali-Pro Prodiamine 65 WDG Pre-Emergent Herbicide is a professional-grade product that provides superior results compared to its competitors. This pre-emergent herbicide contains a higher concentration of active ingredients, which means it is more effective at preventing weeds from germinating.

In addition, the unique formulation of this product helps it to last longer in the environment, providing extended protection against weeds. Quali-Pro Prodiamine 65 WDG Pre-Emergent Herbicide is safe to use around people and pets, and it is also safe for use on lawns and gardens. This product is a great choice for those who want the best possible weed control for their home or business.

Quantitative measurements about how a product measures up in various categories of performance:

Quali-Pro Prodiamine 65 WDG Pre-Emergent Herbicide is one of the best pre-emergent herbicides on the market today. It provides excellent protection against a wide range of weeds, including crabgrass, dandelions, and ground ivy. Additionally, it is extremely effective at preventing new weed seeds from germinating. As a result, Quali-Pro Prodiamine 65 WDG Pre-Emergent Herbicide can help keep your lawn looking its best all season long.

Furthermore, this herbicide is very easy to apply and does not require any special equipment. Simply mix it with water and apply it to your lawn using a standard garden hose. Quali-Pro Prodiamine 65 WDG Pre-Emergent Herbicide is an outstanding product that will help you achieve a beautiful, weed-free lawn.

Quali-Pro Prodiamine 65 WDG Specs:
  • Type: Pre-Emergent
  • Active Ingredient: Prodiamine 65.0%
  • Inert Ingredients: 35.0%
  • Application Rate: 1.5 to 4 lbs per 1,000 sq ft
  • Coverage Area: 10,000 sq ft
  • Product Form: Granules
  • Manufacturer: Quali-Pro
  • EPA Reg. No.: 62719-80
pros:
  • Quali-Pro Prodiamine 65 WDG Pre-Emergent Herbicide prevents several weed types from sprouting, including crabgrass, sedges, and yellow nutsedge
  • The herbicide is suitable for use in spring and fall, making it a versatile option for homeowners
  • Quali-Pro Prodiamine 65 WDG Pre-Emergent Herbicide is easy to apply, simply mix with water and spray onto the lawn
  • The herbicide is safe to use around children and pets when used as directed
cons: 
  • Not effective on all weeds
  • Expensive product
  • Requires professional application
Features and facts:
  • Controls a wide range of annual grasses and broadleaf weeds in established warm-season turfgrass
  • For use on golf courses, residential lawns, commercial landscapes, airports, cemeteries, sod farms, and other sites
  • Low odor for fewer complaints from workers and bystanders
  • Rainfast within 2 hours for effective weed control
  • Can be used in conjunction with other herbicides for tank mixing and resistance management
  • Contains 65% active ingredient prodiamine for long-lasting control
  • Comes in a 12.5 lb. bag to cover 10,000-20,000 sq. ft.

2# Miracle-Gro Garden Weed Preventer: Best for Budget

Miracle-Gro Garden Weed Preventer is the best pre-emergent for people on a budget. This product is a great value for the price, and it’s a must-have for any gardener. Miracle-Gro Garden Weed Preventer is a pre-emergent herbicide that prevents weed growth for up to three months. It’s affordable and easy to use, making it a favorite among budget-minded gardeners. However, it can be harmful to some plants, so always read the label carefully before using it.

Here’s why I think this model stands out from the rest in its category:

Gardeners have long known that preventing weeds is easier than getting rid of them once they’ve taken root. And while there are several products on the market that claim to prevent weeds, not all of them live up to their promises. So, how does Miracle-Gro Garden Weed Preventer measure up?

In terms of efficacy, it’s one of the best on the market, able to prevent weeds for up to 3 months. It’s also easy to use, simply extend the hose and spray the product around the perimeter of your garden bed. And in terms of value, it’s hard to beat Miracle-Gro Garden Weed Preventer. One bottle will cover 50 square feet, making it an economical choice for those with large gardens. So, if you’re looking for a garden weed preventer that delivers on its promises, Miracle-Gro Garden Weed Preventer is a good choice.

Quantitative measurements about how a product measures up in various categories of performance:

You can’t have a beautiful garden without first preventing weeds from taking over. The Miracle-Gro Garden Weed Preventer promises to do just that, and it delivers. This product is easy to use, simply sprinkle it on your garden bed and water it. Then, you can sit back and relax knowing that weeds will be prevented from germinating for up to three months. I’ve used this product for years, and I’ve never been disappointed.

It does work wonders in the garden. Not only does it prevent weeds from sprouting, but it also helps to keep existing weeds under control. I would say it’s a 10 out of 10. It’s simply the best weed prevention product on the market.

Miracle-Gro Garden Weed Preventer Specs:
  • Type: Pre-Emergent
  • Active Ingredient: Dithiopyr
  • Inert Ingredients: 28.72%
  • Application Rate: 2.5 lb/1,000 sq ft
  • Coverage Area: 10,000 sq ft
  • Product Form: Granules
  • Manufacturer: Miracle-Gro
  • EPA Reg. No.: 713-172
pros:
  • Comes in a convenient container that’s easy to use
  • Offers impressive coverage
  • it’s affordable, so you can keep your garden looking great without breaking the bank.
cons:
  • Not effective in preventing all types of weeds
  • The application can be a bit messy
Features and facts:
  • Prevents weeds from growing in your garden
  • It’s easy to use; just sprinkle it on the soil around your plants and water it in
  • Rainproof in 2 hours, so you can plant right after application
  • It lasts up to 3 months, so you can enjoy a weed-free garden all season long
  • Safe to use around children and pets and will not harm your plants

3# Ortho Weed B Gon Weed Killer: Best for Lawns

Ortho Weed B Gon Weed Killer is a granular herbicide that is applied to the soil. It contains the active ingredient Prodiamine, which is a pre-emergent herbicide that prevents the germination of weed seeds. Ortho Weed B Gon Weed Killer is safe to use around children and pets, and it will not harm your lawn.

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One of the great things about Ortho Weed B Gon Weed Killer is that it is very easy to apply. You simply spread the granules over the area you want to treat, and water them. The herbicide will then work its way into the soil, where it will prevent weed seeds from germinating.

Here’s why I think this model stands out from the rest in its category:

Ortho Weed B Gon is one of the most popular weed killers on the market, and for good reason. This product is designed to kill over 200 types of weeds, including dandelions, crabgrass, and clover. What sets Ortho Weed B Gon apart from its competitors is its unique formulation. Unlike other weed killers that rely on harsh chemicals, Ortho Weed B Gon contains a natural active ingredient that is derived from oranges.

As a result, this product is safe to use around children and pets, and it will not damage your lawn or garden. In addition, Ortho Weed B Gon is rainproof and provides up to four weeks of weed control. For these reasons, Ortho Weed B Gon is the ideal choice for anyone who wants to keep their lawn or garden free of weeds.

Quantitative measurements about how a product measures up in various categories of performance:

Ortho Weed B Gon is one of the most popular weed killers on the market, and it’s no wonder why. This product is highly effective, easy to use, and relatively affordable. But how does it measure up in terms of specific performance metrics? Ortho Weed B Gon is very effective at killing weeds. In most cases, it will kill weeds within 24 hours of application.

The Ortho Weed B Gon is very easy to use. Simply mix the concentrate with water, and then apply it to your weed-infested areas. It is relatively affordable. A one-quart bottle of concentrate costs less than $10, and that will make enough solution to treat up to 500 square feet of weeds. Overall, Ortho Weed B Gon is an excellent choice for anyone who wants an effective, easy-to-use, and affordable weed killer.

Ortho Weed B Gon Weed Killer Specs:
  • Type: Pre-emergent
  • Active Ingredient: Diquat dibromide
  • Inert Ingredients: 8.57%
  • Application Rate: 1 gal covers 8,000 sq ft
  • Product Form: Liquid
  • Manufacturer: Miracle-Gro
  • EPA Reg. No.: 1783-18
pros:
  • Ortho Weed B Gon Weed Killer is fast-acting, so you’ll see results in just hours
  • It comes in a variety of sizes, so you can find the perfect one for your needs
  • Ortho Weed B Gon Weed Killer is non-toxic to both pets and wildlife
  • Unlike many weed killers, it won’t kill your grass or other plants
  • This weed killer is safe to use around children and adults
cons: 
  • Ortho Weed B Gon Weed Killer may not be effective on all types of weeds
  • Ortho Weed B Gon Weed Killer can harm desirable plants if used incorrectly
Features and facts:
  • Kills weeds before they emerge
  • Works on lawns, landscapes, and gardens
  • Rainproof in minutes
  • Available in a ready-to-use spray or concentrate
  • Kills over 250 weed species

4# Preen Garden Weed Preventer Plus Plant Food: Best for Flower Beds

Preen Garden Weed Preventer Plus Plant Food is the best pre-emergent for flower beds. It not only prevents weeds but also provides plants with food to help them grow strong and healthy. This product is easy to use and works to keep your flower beds looking great.

Here’s why I think this model stands out from the rest in its category:

If you’re looking for a product that will help you keep your garden healthy and free of weeds, you may want to consider Preen Garden Weed Preventer Plus Plant Food. This unique product not only prevents weeds from taking root but also provides essential nutrients to your plants. The secret to its success is the active ingredient bispyribac-sodium, which works to prevent weed seeds from germinating.

As a result, you can apply Preen Garden Weed Preventer Plus Plant Food before planting and know that you won’t have to worry about pesky weeds sprouting up in your garden. In addition, the bispyribac-sodium will help to ensure that your plants stay healthy and vigorous. With Preen Garden Weed Preventer Plus Plant Food, you can have a beautiful garden that is free of weeds.

Quantitative measurements about how a product measures up in various categories of performance:

Preen Garden Weed Preventer Plus Plant Food is an effective way to prevent weeds and feed your plants at the same time. This product contains a blend of corn gluten meal, fertilizer, and weed preventer that will help your garden look its best.

The corn gluten meal will help to prevent weeds from taking root, while the fertilizer will provide essential nutrients to your plants. The weed preventer will also help to keep your garden free of unwanted vegetation. Overall, this product is an excellent choice for those who want to keep their gardens healthy and free of weeds.

Preen Garden Weed Preventer Plus Plant Food Specs:
  • Type: Pre-emergent
  • Active ingredients: 0.75% dithiopyr and 9% nitrogen
  • Inert Ingredients: 90.25%
  • Application Rate: 3.75 lb/1,000 sq ft
  • Coverage Area: 8,333 sq ft
  • Product Form: Granules
  • Manufacturer: Preen
  • EPA Reg. No.: 72983-19
pros:
  • Feeds plants and strengthens their defenses against diseases while preventing weed growth.
  • Great for large gardens – covers up to 20,000 square feet!
  • A little bit goes a long way – just 1.5 tablespoons per square yard of the garden.
  • Simply sprinkle around your plants and water them in for the best results.
  • Reduces the number of weeds in your garden by up to 90%.
  • Safe to use around children and pets.
cons: 
  • Some people find the product difficult to apply
  • The container is a bit heavy
  • The product can only be used on outdoor plants
Features and facts:
  • Kills weeds before they grow
  • Easy to use, just mix with water and pour around plants
  • Protects plants from up to 12 weeks
  • Safe for use around children and pets
  • Can be used on flowers, vegetables, shrubs, and trees

5# Preen Natural Vegetable Garden Weed Preventer: Best Natural

Preen Garden Weed Preventer is a natural pre-emergent herbicide that can be used to prevent weeds in your garden. It is made of corn gluten meal, which inhibits the germination of weed seeds. Preen Garden Weed Preventer is safe for use on vegetables and other plants in your garden, and it will not harm your soil.

Preen Natural Vegetable Garden Weed Preventer is a pre-emergent herbicide that prevents weed seeds from germinating. It is made of corn gluten meal, an organic by-product of milling corn, and has been registered with the EPA for use as a herbicide since 1993. Preen Natural is safe to use around children and pets, and will not harm your vegetables or flower beds. It is also effective at preventing crabgrass and other grassy weeds. Apply Preen Natural Vegetable Garden Weed Preventer in early spring before weed seeds have a chance to germinate, or in late fall to prevent winter annual weeds from sprouting in the spring. Re-apply every 4-6 weeks for best results.

Here’s why I think this model stands out from the rest in its category:

Any avid gardener knows that weeds are the bane of a beautiful garden. Not only do they steal valuable nutrients from your plants, but they also add unsightly clutter to your carefully curated landscape. But fear not! There is hope in the form of Preen Natural Vegetable Garden Weed Preventer.

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This unique product uses corn gluten meal to prevent weed seeds from germinating, meaning you can finally put your foot down (literally) on those pesky intruders. And because it’s made from natural ingredients, you can feel good about using it around your plants and in your soil. So don’t wait any longer, give Preen Natural Vegetable Garden Weed Preventer a try today!

Quantitative measurements about how a product measures up in various categories of performance:

If you’re looking for an organic way to prevent weeds in your garden, Preen Natural Vegetable Garden Weed Preventer is a great option. This product is made from corn gluten meal, which breaks down into nitrogen and other nutrients that help promote healthy plant growth.

Preen Natural Vegetable Garden Weed Preventer also contains acetic acid, which acts as a natural herbicide. When applied to garden beds, this product will prevent weeds from germinating for up to four weeks. And because it’s made from natural ingredients, you can feel good about using it around your flowers and vegetables.

Preen Natural Vegetable Garden Weed Preventer Specs:
  • Type: Pre-emergent
  • Active Ingredient: Corn gluten meal
  • Inert Ingredients: Coconut fiber, cornstarch
  • Application Rate: 3.75 lb/1,000 sq ft
  • Product Form: Granules
  • Manufacturer: Preen
  • EPA Reg. No.: 70385-19
pros:
  • Preen Natural Vegetable Garden Weed Preventer is an eco-friendly weed preventer that uses corn gluten meal as the active ingredient.
  • The product is suitable for vegetable gardens and can handle the most common weed types.
  • It is safe to use around children and pets.
  • A little goes a long way, so the product is economical to use.
  • Preen Natural Vegetable Garden Weed Preventer is OMRI listed and compliant for organic gardening.
cons: 
  • Can be harmful to plants if used in excess
  • Eco-friendly and organic, but also expensive
Features and facts:
  • Preen prevents weed growth before it starts, meaning you spend less time and energy battling weeds in your garden.
  • Preen is a natural product made of corn gluten meal, which inhibits the root formation of weed seeds as they germinate.
  • One bag of Preen covers up to 5,000 square feet and lasts for four months.
  • Preen is safe for use around children and pets, and will not harm your plants.
  • Preen is rainproof within two hours of application.

My Verdict

There are many different pre-emergent herbicides on the market, so how do you know which one is right for you? I’ve done the research and here is my verdict on the best pre-emergent herbicides out there.

Quali-Pro Prodiamine is a reliable herbicide that tackles a wide range of weeds and prevents them from sprouting. It’s a great choice for those who want a one-stop solution for their weed control needs.

Miracle-Gro Garden Weed Preventer is a more budget-friendly option that comes in an easy-to-use shaker bottle. It provides up to 800 square feet of coverage, making it a great choice for small gardens. Whichever pre-emergent herbicide you choose, be sure to follow the instructions on the label carefully to get the best results.

FAQs

What is the best pre-emergent herbicide?

The best pre-emergent herbicide will depend on your specific needs. If you’re looking for a one-stop solution to your weed control needs, Quali-Pro Prodiamine is a great choice. For a more budget-friendly option, try Miracle-Gro Garden Weed Preventer.

How do I apply pre-emergent herbicide?

Pre-emergent herbicides can be applied either with a garden hose attachment or by hand. Be sure to follow the instructions on the label carefully to avoid damaging your plants.

When should I apply pre-emergent herbicide?

Pre-emergent herbicides should be applied in early spring before weeds start to germinate. This will prevent them from taking over your garden.

What are the active ingredients in pre-emergent herbicides?

The active ingredients in pre-emergent herbicides vary depending on the product. Some common active ingredients include corn gluten meal, acetic acid, and prodigiosin.

What are the side effects of pre-emergent herbicides?

Pre-emergent herbicides can be harmful to plants if used in excess. Always follow the instructions on the label carefully to avoid damaging your plants.

Can I use pre-emergent herbicide on my lawn?

Yes, you can use pre-emergent herbicide on your lawn to prevent weeds from sprouting. Be sure to follow the instructions on the label carefully to avoid damaging your grass.

What are the dangers of pre-emergent herbicides?

Pre-emergent herbicides can be harmful to plants if used in excess. Always follow the instructions on the label carefully to avoid damaging your plants.

Do pre-emergent herbicides work?

Yes, pre-emergent herbicides are effective at preventing weeds from sprouting. Be sure to follow the instructions on the label carefully to get the best results.

How long does pre-emergent herbicide last?

Pre-emergent herbicides typically last for four months. However, this will vary depending on the product you use. Be sure to follow the instructions on the label carefully to get the best results.

What is the best time to apply pre-emergent herbicide?

Pre-emergent herbicides should be applied in early spring before weeds start to germinate. This will prevent them from taking over your garden.

Can I use a pre-emergent herbicide in the winter?

Yes, you can use a pre-emergent herbicide in the winter to prevent weeds from sprouting. Be sure to follow the instructions on the label carefully to avoid damaging your plants.

Can I use a pre-emergent herbicide in my vegetable garden?

Yes, you can use pre-emergent herbicide on your vegetable garden to prevent weeds from sprouting. Be sure to follow the instructions on the label carefully to avoid damaging your plants.

Can I use a pre-emergent herbicide in my flower garden?

Yes, you can use pre-emergent herbicide on your flower garden to prevent weeds from sprouting. Be sure to follow the instructions on the label carefully to avoid damaging your plants.

Can I use pre-emergent herbicide on my trees?

Yes, you can use pre-emergent herbicide on your trees to prevent weeds from sprouting. Be sure to follow the instructions on the label carefully to avoid damaging your plants.

What are the best pre-emergent herbicides for my garden?

The best pre-emergent herbicide will depend on your specific needs. If you’re looking for a one-stop solution to your weed control needs, Quali-Pro Prodiamine is a great choice. For a more budget-friendly option, try Miracle-Gro Garden Weed Preventer.

Can I use pre-emergent herbicide on my patio?

Yes, you can use pre-emergent herbicide on your patio to prevent weeds from sprouting. Be sure to follow the instructions on the label carefully to avoid damaging your plants.

Can I use pre-emergent herbicide on my deck?

Yes, you can use pre-emergent herbicide on your deck to prevent weeds from sprouting. Be sure to follow the instructions on the label carefully to avoid damaging your plants.

Why trust Handyman.Guide?

s written by Itamar Ben-Dor, who has 25 years of experience in renovations, carpentry, locks, creation, landscaping, painting, furniture construction, and furniture renovation, works with concrete, plumbing, door repair, and more.

Itamar Ben-Dor has been in the home improvement business for over 25 years. Itamar Ben-Dor is a jack of all trades. He's worked in the renovation field for years, doing everything from locksmithing to carpentry. He's a small repairs specialist. But his true passion lies in furniture construction and renovation - he loves seeing old pieces come back to life with some new woodwork or a fresh coat of paint.

He has taken courses on many topics in these fields at professional colleges in Israel. Over the years, Itamar has also become quite skilled in gardening, carpentry, and renovations. He's worked on projects of all sizes, from massive renovations to small repairs. No job is too big or too small for him!


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