5 Best Weed Controls 2021 Reviews | Lawnscanner

Spring arrival makes your grass green and healthy. And brings unwanted weeds to your lawn. Applying the best weed control to your yard eliminates the risk of weeds growth.

We made this list of the top 5 best weed preventers based on personal experience, customers reviews, brand reputation, price, market analysis, and more.

Our Top 5 Best Weed Control For Your Lawn and Garden

IMAGE PRODUCT FEATURES PRICE
EDITORS CHOICE
NETGEAR Nighthawk Smart WiFi Router
Scotts Liquid Turf Builder with Plus 2 Weed Control Fertilizer
  • Control weeds quickly
  • Give quick boost of nitrogen
  • Fertilize the lawn
  • Visible results in 3 hours
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EDITORS CHOICE
NETGEAR Nighthawk Smart WiFi Router
Preen 2464161 Extended Control Weed Preventer
  • Controls 125 types of broadleaf and grassy weeds
  • Creates barrier that stops the weeds
  • Prevents weeds for 6 months
  • Does not harm the lawn
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TOP CHOICE
NETGEAR Nighthawk Smart WiFi Router
The Andersons Barricade Granular Pre-Emergent Weed Control
  • Pre-emergent weed control
  • Controls over 30 grassy and broadleaf weeds
  • More particles per square inch of chemical
  • Best for large area
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TOP CHOICE
NETGEAR Nighthawk Smart WiFi Router
Roundup 5708010 Extended Control Weed and Grass Killer Plus Weed Preventer
  • Kill existing weeds and prevents new one
  • Kill weeds down to the root
  • Controls the weeds up to 4 months
  • Visible results in just 3 hours
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TOP CHOICE
NETGEAR Nighthawk Smart WiFi Router
Scotts WeedEx Prevent with Halts – Crabgrass Preventer, Pre-Emergent Weed Control for Lawns
  • Pre-emergent weed control
  • Prevents germination of crabgrass
  • Also prevents winter weeds
  • Apply during any season
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Best Weed Control Fertilizer: Scotts Liquid Turf Builder with Plus 2 Weed Control Fertilizer

TOP PICK
Goxawee Cordless Drill Screwdriver
9.8/10 Our Score

Specifications

  • Give quick boost of nitrogen
  • Work best when weeds are small and actively growing
  • Covers up to 6,000 sq. ft.
  • N-P-K: 25-0-2
Pros
  • Control weeds quickly
  • Fertilize the lawn
  • Easy to use
  • Visible results in 3 hours
Cons
  • Not recommended for St. Augustine, Buffalograss and Dichondra

Scotts Liquid Turf Builder with Plus 2 Weed Control Fertilizer controls the weeds and enhances nitrogen in your lawn.  The formula controls chickweed, clover, dandelion, pigweed, ragweed, buckhorn, and other broadleaf weeds.

It’s the best liquid weed control that fertilizes the lawn and controls the weeds within few days. Tough weeds require another application within 2-4 weeks. Apply when weeds are actively growing.

Shake the spray before use. Simply connect the bottle with the hose and turn on the water. And point the nozzle of the spray towards the weeds.

It controls chickweed, knotweed, dandelion, clover, poison ivy, broadleaf, and other grassy weeds before they mature.

Apply this best weed control formula on Bluegrass, Bermudagrass, Centipedegrass, Zoysiagrass, Bahiagrass, Fescue, and Ryegrass. Do not use on St. Augustine, Buffalograss, Dichondra, and lipid. Make sure to cover the desirable flowers, vegetables, and ornamental planting before the application.

Best Liquid Weed Control: Preen 2464161 Extended Control Weed Preventer

TOP PICK
Goxawee Cordless Drill Screwdriver
9.8/10 Our Score

Specifications

  • Creates barrier that stops the weeds
  • Water in to activate after the application
  • Remove existing weeds
  • Controls 125 types of broadleaf and grassy weeds
Pros
  • Prevents weeds for 6 months
  • Guarentee results
  • Does not harm the lawn
  • Easy to apply
Cons
  • Not recommended for St. Augustine and Centipedegrass and around edible plants

Preen Extended Control Weed Preventer controls the weeds for up to 6 months. The formula can be applied to more than 600 perennials, groundcover, shrubs, and trees. It creates a barrier beneath the surface that stops the weeds to grow.   

Apply Preen lawn weed control to your lawn when weeds are actively growing kills them without harming your lawn. Remember, mow the area 24-48 hours before you intended to treat it.

Use Preen early in the morning when the grass is covered with dew. If dew is absent, lightly water the area to be treated with a garden hose. Moisture is needed to make preen stick to weeds and reduce the chance of drift.

Sweep any stray granules for driveways and another hard surface to the lawn. Water the lawn thoroughly after 48 hours. Do not apply more than twice a year. Do not apply to carpetgrass, St. Augustine grass, around edible plants, or when the temperature is above 90 degrees Fahrenheit.

Follow all directions on the label and wash your hand after using.

Best Pre-Emergent Weed Control: The Andersons Barricade Granular Pre-Emergent Weed Control

TOP PICK
Goxawee Cordless Drill Screwdriver
9.8/10 Our Score

Specifications

  • Pre-emergent weed control
  • Prevents the germination of weeds
  • Dg Technology makes the application process more effective
  • More particles per square inch of chemical
Pros
  • Controls over 30 grassy and broadleaf weeds
  • Best for large area
  • Do not harm the desirable plants
  • Pet and kids safe
Cons
  • Not recommended against Dandelion and Clover
  • Not recommended for existing weeds

The Andersons Barricade Professional-Grade Granular Pre-Emergent Herbicide prevents unwanted weeds in turf and landscape ornamentals. Prodiamine is beneficial in controlling weeds without harming the plants. Barricade is designed for use in turfgrass, gardens, flowerbeds, and non-crop growing areas.

Since Barricade is a pre-emergent herbicide. It is great for preventing weed growth, but it will not kill already sprouted or established weeds.

Depending on your turf type, you’ll apply between 1.5 to 4 pounds per 1,000 square feet. Check the label to get your exact rate for your lawn’s grass type. If you are treating landscape ornamentals, use 2.5 to 5.94 pounds per 1,000 square feet.

Load your measured amount of Barricade into your spreader. Broadcast half your granules in parallel lines once across your area, then broadcast the other half at a perpendicular angle to cover the area in its entirety. Once the product is fully applied, water it in. The most effective weed control can be achieved with at least half an inch of water within 14 days of application.

Pre-emergent herbicides are best used in spring or fall to control summer or winter weeds, respectively. Spring pre-emergent applications should take place when the soil temperature has been constantly 65-70 degrees Fahrenheit, while fall pre-emergent applications should be applied when the soil temperature has been constantly 55-60 degrees Fahrenheit.

Before you apply the best weed control application, it’s important to wear your proper personal protective equipment. Because this is a granular product, you will need a rotary or spreader.

Best Weed and Grass Preventer: Roundup Extended Control Weed and Grass Killer Plus Weed Preventer

TOP PICK
Goxawee Cordless Drill Screwdriver
9.8/10 Our Score

Specifications

  • Kill existing weeds and prevents new one
  • Fast and easy way to kill weeds
  • Kill weeds down to the root
  • Rainproof in 10 minutes
Pros
  • Controls the weeds up to 4 months
  • Easy to refill and use
  • Guarentee results
  • Visible results in just 3 hours
Cons
  • Do not use to spot treat in your lawn

Roundup Extended is the best weed & grass killer fertilizer. The formula controls the new weeds from growing up to 4 months. Rainproof in 10 minutes and visible results in three hours.

It’s always ideal to catch weeds in the early stages of growth. It’s most effective when it’s a good day to spray. You have to check the weather and make sure the temperature is between 45 and 90 degrees Fahrenheit.

Apply the Roundup control in and around vegetable gardens, flower beds, tree rings, mulch beds, driveways, patios, and walkaways. Remember, do not use this product on favorable grass and spot treatment on your lawn. Only apply when weeds are actively growing.

Roundup offers a money-back guarantee if the customer is not happy with the product.

Best Weed Preventer: Scotts WeedEx Prevent with Halts – Crabgrass Preventer,

TOP PICK
Goxawee Cordless Drill Screwdriver
9.8/10 Our Score

Specifications

  • Pre-emergent weed control
  • Prevents germination of crabgrass
  • 1 bag cover 5,000 sq. ft.
  • Use on all grass types
Pros
  • Stop crabgrass and other weeds before it start
  • Also prevents winter weeds
  • Apply during any season
  • Easy to Apply
Cons
  • Do not apply to dichondra and bentgrass lawn
  • Not recommended for establish weeds

Scotts WeedEx is the best formula to control the crabgrass and other weed problems in your lawn. It’s a pre-emergent herbicide. It is great for preventing weed growth, but it will not kill already sprouted or established weeds. That’s why apply when weeds are actively growing.

Rain, snow, and freezing weather won’t affect the performance of the fertilizer. Spring application prevents crabgrass for a long time. And fall application prevents winter weeds such as chickweed, henbit, and Poa annua.

The fertilizer prevents the germination of crabgrass. First, determine your lawn area and pour the product in the spreader and adjust the setting according to the label instructions.

The formula can be applied on all grass and lawn except dichondra and bentgrass. Do not use this application more than twice a year.

Use this application in spring to prevent crabgrass, foxtail, oxalis, and other weeds problems. In fall, it prevents the chickweed, henbit, and Poa annua.

If any of the reasons, the customer is not happy with the application. Don’t worry, Scotts offers a money-back guarantee.

Best Weed Control Buyer’s Guide

Applying the best weed control in your lawn will help you to grow a healthier and weed-free lawn. Here is the definitive guide for selecting the best weed preventer for you.

If your lawn was affected by weeds last season. Then, there are most chances that your lawn will also affect the incoming season. So, you need a weed preventer to stop the germination of weeds.

Tips & warnings

Mow the area 24 to 48 hours before you intend to treat it with the best weed control formula. Measure the length and width of the section of lawn you wish to treat. Multiply length times width to get the total area in square feet. If the area is an irregular shape, break it into square or rectangular sections. Then add those areas to give total square feet to be treated.

Water thoroughly the area to be treated the evening before you intend to apply weed control. You won’t be able to water again until 48 hours after treatment. This will keep the lawn hydrated. Calculate how many pounds of weed control you need to treat your total each 1,000 square.

Do not apply more than two times per year. Allow 30 days between applications because the product leeches into the ground when watered in. And should not be applied in areas with tree roots or plants you want to keep.

Weed control is toxic to humans and residue will damage plants. Protect yourself when handling the product by wearing long sleeves, pants, eye protection, and chemical-resistant gloves and shoes. Follow all warnings on the label and wash hands after using. 

Things you will need

  • Lawn mower
  • Tape measure
  • calculator
  • Chemical resistant gloves and shoes
  • Eye protection
  • Bathroom scale
  • Container
  • Spreader
  • Garden hose with sprayer

Spreader Setting

Set the spreader to the recommended setting for your type and brand of the spreader. Recommended settings are found on the best weed control label. When using a broadcast spreader, start on the perimeter and walk around the area in a circular motion toward the center. Apply to each end of the area first then walk back and forth along the length of the lawn.

Work your way from one side of the lawn to the other. Shut off the spreader when making turns at each end. So, you don’t over-treat those areas. Reduce the chance of over spraying the best weed control onto sidewalks and other hard surfaces.

FAQs

Best Time to Apply Weed Control in Your Lawn?

Weed control works best when the weeds are small and there are chances that your lawn can grow the seasonal weeds.

Apply the best weed control early in the morning when the grass is covered with dew. If dew is absent, lightly water the area to be treated with a garden hose. Moisture is needed to make stick the weeds and reduce the chance of drift. Water the lawn thoroughly after 48 hours.

How Weed Controls Works?

Weed Controls creates the barrier beneath the surface and stops the germination of weeds. And this is the most effective way to control weeds.

Best Weed Control are Safe For People and Pets?

Most of the best weed control formula contains the chemicals that can cause eye irritation and skin problems. Keep the children and pets out of the area until the application is dried. Wear gloves and glasses during the application.

Always read the instruction on the label before application.

Quick Recommendations

Hope, the above guide will help you in selecting the best weed preventer for your lawn. The Anderson Barricade is the best weed control. because it controls the germination of weeds and control over 30 grassy and broadleaf weeds.

Roundup-ready to use gives you quick results. It controls existing weeds and prevents new weeds to grow. Preen Extended controls over 125 types of broadleaf and other existing weeds.

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