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How To Spray Weeds In Lawn

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How Many Times To Fertilize Lawn Or Spray For Weeds Grubs Fungus Etc

How to Spot Spray Weeds in the Lawn

Its not uncommon for homeowners to ask us how many lawn treatments they need each year. Whether its how many times to fertilize the lawn, how many times to spray for weeds, or something elsehomeowners want to feel confident that theyre not receiving too few treatments.

Of course, with so many lawn care companies packaging their programs in different ways, it can be easy to understand the confusion.

Were here to be your guides in lawn care advice, which is why weve put together this article that will hopefully answer some of your common lawn care questions. When you are investing in professional services, you deserve to know that your lawn is getting what it needs.

What You Might Need

What you will need is a selective herbicide that targets broadleaf weeds like dandelions. A non-selective herbicide like Round Up will target everything including healthy grass, shrubs and bushes.

So, youâll want to avoid that unless you want to start over. Wait several weeks after treating an area with both types of herbicides before you can plant new grass seed because the herbicide will prevent new seed from germinating.

Even selective herbicides such as 2,4 D can do damage to shrubs and bushes, so be careful where you spray it.

There are two types of weed control: One is granular, and the other is liquid. The granular type is what you would likely get at Home Depot, Loweâs and other stores if youâre going to do it yourself. Scotts Turf Builder weed and feed is an example of granular.

The liquid type is what you would likely buy to spot treat weeds. Ortho Weed B-Gon is a liquid spray that doesnt contain fertilizer.

Lawn care companies may use either kind. If theyâre treating an entire lawn with liquid, it will probably contain a fertilizer to give your lawn a shot of nitrogen.

This time of year, grass is already green and growing like crazy. A fertilizer will help boost color and growth, and its also definitely good for helping a new lawn get established.

Avoid weed control on a new lawn until it is established.

As for the application, itâs always best to follow the instructions on the bag or bottle.

Can I Get Rid Of Weeds In A Lawn Naturally

Yes! But it may take more time and effort. Spraying vinegar directly on weeds is a natural way to get rid of them. It dries out the plant leaves and kills whats above the ground.

Also, pick vinegar that contains more than the standard 5 percent acetic acid. Head to a home improvement store instead of the supermarket to find vinegar with 10 to 20 percent acetic acid.

If you spray that, you can kill 80 to 100 percent of weeds top growth, found USDA research.

This method works best for a few weeds spread throughout the lawn. For larger spreads, its best to go with a safe, effective herbicide.

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Effective Weed Control For Your Southern Ontario Lawn

Keeping weeds out of your life and out of your lawn can be a struggle anywhere, and especially here in Southern Ontario. You want a lawn you can be proud of without overusing particular products or using something that doesnt work. Heres the scoop on effective weed control for a thick, green weed-free lawn.

What Is The Proper Way To Apply A Broadleaf Herbicide To The Lawn

Weed Spraying in minneapolis Lawn

Broadleaf herbicides can be applied as liquids or granules. Before applying any herbicide, carefully read and follow label directions.

When applying liquid formulations, avoid potential spray drift problems by following simple precautions. Dont spray when winds exceed 5 mph. Also, dont spray when temperatures are forecast to exceed 85 degrees Fahrenheit within 24 hours of the application. Since coarse droplets are less likely to drift than fine sprays, select a nozzle that produces coarse droplets and use low sprayer pressure when applying liquid broadleaf herbicides.

When spraying, keep the nozzle close to the ground. If only a few areas in the lawn have broadleaf weeds, spot treat these areas rather than spraying the entire lawn. Apply just enough material to wet the leaf surfaces. A single application of a broadleaf herbicide kills many broadleaf weeds. Difficult-to-control weeds, such as violets, will likely require two applications.

Granular broadleaf herbicides are usually combined with fertilizers. Apply granular broadleaf herbicides and fertilizer/broadleaf herbicide combinations when the foliage is wet. Broadleaf herbicides are absorbed by the weeds foliage, not its roots. To be effective, the granules must stick to the weeds and the herbicide absorbed by the weeds foliage. Apply granular products in the early morning when the foliage is wet with dew or irrigate the lawn prior to the application.

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The Best Time To Spray Weeds: Throughout The Season

It would be great if we could announce in a booming voice: The best time to spray weeds is May 7 at 3 pm. But it doesnt work that way.Weed control isnt a one-time thing. Its actually a continuous process.Different lawn weeds here in Wisconsin and Minnesota are active at different times of year. Many of the peskiest spring weeds actually germinate in the fall.Spring preventative treatments are based on soil temperature. Around here, that means our start time can range from March to May. Curative weed spray treatments occur from April through early October. This whole timing thing is kind of complicated. Theres a lot more involved than just applying products on your lawn.Thats why you need a complete, proactive lawn care program that includes both weed preventative and curative treatments from early spring to late fall.

Best Time To Spray Weeds In Lawn

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The lawn weed control timing chart was developed to help remove confusion and guesswork when determining the recommended time of year to control various weeds in lawns. For better results, you have to be sensible enough about the best time to spray weed killer on your garden.

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When Should I Spray My Lawn For Weeds In The Fall


Control this prickly weed with a fall application of a pre-emergent herbicide. For perennial weeds such as Plantain, Dandelion, Knotweed and Clover, apply a post-emergent herbicide in fall to send the killing chemicals directly to roots. This treatment will help reduce the numbers of these weeds in spring.

Secondly, what is the best time to kill weeds in lawn? You will only kill weeds when they are actively growing. This means commencing sometime in April and finishing sometime in late September or early October. I would not rush to apply lawn weed killer to the whole lawn in the early spring as there will be a lot of weeds that won’t surface until later on.

One may also ask, should I kill weeds in the fall?

In contrast, fall is the ideal time to control weeds because, unlike the summer when weeds are focusing on top-growth, in the fall weeds are storing energy in their root system and are more susceptible to herbicide applications.

Is Roundup effective in the fall?

However, Roundup is still the most effective herbicide on quackgrass. Roundup applied in the fall or in the spring before planting may give more consistent control of quackgrass than any of the postemergent grass herbicides.

Best Weed Killer For Your Yard

How to spray weeds in the lawn

Weed killers, also called herbicides, and weed preventers are important tools for every gardener. While hand-pulling helps when it’s done before the weeds flower, it’s better to prevent them from growing in the first place and kill the ones that do pop up down to the roots.

Use this guide to learn about different types of weed killers and find the best weed killer for your yard.

Always follow the manufacturer’s directions on the weed killer you use.

Weed killers contain chemicals that kill plants or inhibit their growth. The best weed killer for your yard depends on what kinds of weeds you have. Some herbicides kill weed seedlings while others kill weeds after they are up and growing.

There are four basic ways to talk about how herbicides work. These are emergence, selectivity, persistence and translocation. Understanding each one will help you read product labels and find the best weed killer for your yard.


This refers to when weed killers actually work. Weed killers are either pre-emergents that target germinating seedlings or post-emergents that kill weeds that are already growing. Apply a pre-emergent two to three weeks before the weeds germinate and a post-emergent after the plants are up.



Persistence means how long the herbicides work. Those that last for a short time are called non-persistent. Those that kill the weeds and help keep them from coming back are called persistent.


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When Is The Best Time To Apply Weed Killers

Use herbicides when temperatures are between 65 and 85 degrees Fahrenheit. Do not apply it when temperatures are expected to rise above 85 degrees Fahrenheit within 24 hours of application. To minimize the danger of herbicide drift, spray weeds during a calm part of the day when theres little or no wind. Dont apply when rain is expected within 24 hours of application, and avoid watering for 24 hours after application.

A one- to five-gallon sprayer is often used to apply herbicides. Once a sprayer is used for herbicides, it should only be used for that purpose -not for applying liquid fertilizers, insecticides or fungicides. Easy-to-use, inexpensive garden hose sprayer attachments also are available. Application is accomplished by putting the herbicide into the attachment where its mixed with water as it comes from the hose. Uniform application and spray control are more difficult with this type of sprayer.

How Often Can You Use Lawn Weed Killers

This all depends on the weedkiller being used. Each manufacturer is different so do read the label.

Our recommended weed killers Resolva and Weedol suggest only one treatment per year but if you use each one once that allows you two full lawn treatments in a year. This only applies to weed killer for the coverage of the whole lawn NOT ready to use for spot treatments.

My advice would be a maximum of 2 treatments per annum using two different weed killers with different active ingredients. Further, you are only likely to treat this often in the first and possibly second year to get rid of established weeds. Once you get in to subsequent years a treatment in September will be the most youll need if you do some weed control with a spot weed killer during spring and summer. If you have good lawn care practices youll find you wont need a complete lawn treatment for several years. I give my lawn a full treatment about every 3 years!

  • This method is a cost effective way to kill weeds in a small lawn by using weedkiller concentrate mixed with water in a watering can.

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When To Spray Lawn For Weeds: Yearly Timing

The ideal lawn is a smooth stretch of grass, so making sure there arent any weeds to disrupt the enjoyment of your yard is always top of the maintenance list. As all homeowners know, this is an ongoing activity that needs to be done at different times throughout the year for the best results.

Where youre treating weed growth will define your approach. Spraying for weeds over sidewalks, driveways, and other paved areas can take a more blanket strategy than spraying weeds in your lawn or garden.

The best time of the year to spray weeds in the lawn is going to depend on when the weeds show up each spring, summer, and fall. Weeds can be hearty plants competing with your grass for soil nutrients, water, space, and sunlight, so a watchful eye and a good schedule will help you keep the grass clear of unwanted growth.

A Mowed Lawn Always Has Open Grass Blades That Need Time To Heal

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Best time to spray weed killer on your lawn. By doing this, you can minimize the problem come the following spring. Granular weed killers, though, benefit from a soil that is slightly damp. People often get it wrong, ferguson notes.

For better results, you have to be sensible enough about the best time to spray weed killer on your garden. For granular weed killers, its best to apply them evenly over the lawn area using a fertilizer spreader. If you go the chemical route of using herbicides, sprinkling them on your weeds at the right time can help maximize your success in the weed war.

Wind speed below 5 mph . Lawn should be dry of rain and dew. The time of day and year are important considerations to keep in mind when applying herbicides.

The best time of the day to apply weed killer is late morning. Over the day, plants can grow fast or slow depending on light level, temperature and local clime. Spray the weed killer in early spring, then another application eight weeks later.

In summer, in early morning and late afternoon, it is warm and not too hot, which is suitable for weed to grow fast. If the procedure is to be repeated, there is always time until the harsh weather renders it impossible. However, some individuals opt to spray weed killers directly on their lawn for an effective result.

The best way to get rid of. Dont mow for a further 3 days. Youll get the best out of the weed killer if your grass is well.

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Classes Of Weeds: Broadleaf Grassy Sedge

First, know your target. Weeds fall into three classes: broadleaf, grassy and sedge.

Broadleaf weeds produce two seed leaves as the plant emerges and generally display wider leaves and branched stems. Broadleaf weeds include white clover, dandelion, thistle, pokeweed and even poison ivy.

Grassy weeds produce one seed leaf, like regular turfgrass. Examples include goosegrass, crabgrass and rushes.

Sedges also produce just one seed leaf, but in cross-section, the leaves show a triangular shape, as with yellow nutsedge.

Natural Methods For Weed Removal In Your Lawn

If you dont like the idea of using chemical herbicide on your lawn then here are some natural methods you can try:

Pulling Weeds By Hand

Sometimes, the traditional way is the best. If you only have 1 or 2 plants to remove, then weeding by hand is usually quick and effective.

Use a trowel to dig down around the plant and remove it from the ground. Make sure you take the roots as well.

If you want to make the job easier, you can use a weed puller. This tool allows you to stand as you pull the weeds out of the ground.

The main drawback of removing them by hand is that it takes a lot of hard work if you have a lawn full of weeds.

And because some plants grow back quickly if you leave any of the root system behind, it can be difficult to completely get rid of them without taking great care.

A common problem weed thats very difficult to control by hand once its well established in your yard is nutsedge.


Another natural method that people often recommend is vinegar. This burns the weed on contact, killing every part it touches. Pour it into a handheld sprayer and then apply it to all visible parts of the plant.

Youll have to use a strong acetic acid solution of somewhere between 10-20% concentration. Normal table vinegar isnt usually powerful enough for the job.

But there are two problems with using vinegar.

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The Chemical Way To Remove Grass Weeds Without Killing The Lawn

If you are set on trying some specialised products for eliminating the unwanted plants in your lawn, then you will need the right herbicide. There are basically two types:

  • Selective herbicides These are meant to kill specific kinds of weeds. Such are the broadleaf herbicides, which provide control over dandelion, bindii, clover and the likes.
  • Non-selective herbicides As the name suggests, these are more generic products. They can kill everything and usually work down to the root.

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Weed And Feed Considerations

How To Spray Weeds In The Lawn

The lawn improvement marketplace is full of convenient weed and feed products. However, these mixtures do not kill established weeds rather they use preemergent herbicides to impede weed germination. If you have an established weed problem, avoid the weed and feed mixtures and use the spot spray strategy. Overall, using herbicides and fertilizers separately allows you to control their application closely for the best lawn care.


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How Many Times To Spray For Weeds

Good weed control is all about optimally timed treatments that are varied as the season and property need them to be. For instance, in the early spring, we are applying perfectly timed pre-emergent applications that will prevent weed growth in the first place. The timing is crucial as pre-emergents work by inhibiting germination .

Following pre-emergents, we are hitting weeds with post-emergent throughout the rest of the year. Most likely this could be all 9 visits. Basically, if we see weeds when we are on-site, were going to treat. And since different weeds occur at different times of the year, this is truly an ongoing problem that needs to be continually addressed with a customized approach that takes into account the specifics of your property. After all, the weeds that you are dealing with may be different from some of the weeds our other customers are seeing. That is why our approach is varied.

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