12 best crabgrass controls

Product description

Looking for a way to prevent weeds for a beautiful lawn all season long? A single application of Scotts WeedEX Prevent with Halts in the early spring can prevent crabgrass and problem weeds. Rain, snow, or freezing weather won't affect the product performance, so you don't have to worry about the elements after you've applied. Apply easily with a Scotts broadcast, drop, hand-held or Wizz spreader to all lawn and grass types (except dichondra or bentgrass).

• Scotts WeedEX Prevent with Halts prevents crabgrass all season long
• Stops crabgrass before it starts
• Apply in early spring for season-long prevention of crabgrass, Fall application prevents winter weeds such as poa annua, henbit and chickweed
• Effective pre-emergent control of crabgrass, foxtail, spurge, oxalis, and other grassy and broadleaf weeds
• Use on all lawn and grass types (except dichondra or bentgrass)

User questions & answers

Question:	It says early spring application. Will this still work after the weeds have grown or only before they take root
Answer:	Scotts WeedEx Prevent with Halts is a pre-emergent. If applied when the targeted weeds have already germinated, it will not help control them, or prevent them from coming back.
Question:	How many times do I need to apply in the fall for Poa Annua
Answer:	You should only need to apply this product once in the fall before soil temperatures drop below 70°F.
Question:	Will this kill sandburs
Answer:	This is a "PRE-Emergence" which means it will prevent weeds from sprouting. EXCELLENT control from Crabgrass
Question:	Is this a 10lb bag? Does it come in bigger bags
Answer:	Yes, 25 lb, but don’t know if Amazon sells it.

Product features

Apply in Early Spring for Season-Long Prevention of Crabgrass

Looking for a way to prevent weeds for a beautiful lawn all season long? A single application of Scotts WeedEX Prevent with Halts in the early spring can prevent crabgrass and other problem weeds as listed.

Weed Control

Controls the following weeds: crabgrass, foxtail, spurge, barnyardgrass, fall panicum, goosegrass*, henbit, chickweed, poa annua, corn speedwell and oxalis (common yellow woodsorrel).*For goosegrass control, repeat application in 8 weeks.

Stops Crabgrass Before It Starts

Apply in early spring for season-long prevention of crabgrass. Rain, snow, or freezing weather won’t affect the product performance, so you don’t have to worry about the elements after you’ve applied.

Prep & Apply

Apply Scotts WeedEX Prevent with Halts in early spring when the lawn is dry to prevent germination of crabgrass. It’s easy to use; first calculate the size of your lawn with the Scotts MyLawn app to determine coverage amount. Then pour product into your spreader and adjust setting per the product label requirements and apply. One bag treats up to 5,000 sq. ft. See label for full product instructions.

Product description

Get your lawn off to a great start with an early spring fertilizer and crabgrass weed preventer. Use Scotts Turf Builder Halts Crabgrass Preventer with Lawn Food to keep your lawn protected from crabgrass all season long. Apply in early spring before 3rd or 4th mowing when lawn is dry and before temperatures are regularly in the 80s to stop crabgrass in early stages of growth. In addition, the lawn food fertilizes your lawn for a fast green-up after winter.

• Stops crabgrass before it invades and protects your lawn all season long
• Lawn fertilizer feeds for a fast green-up after winter and builds strong, deep grass roots
• Rain, snow or freezing conditions after application won't affect product performance
• For best results, lawn should receive 1/4 to 1/2 inch of water from rainfall or watering within 2-3 days after application
• Not for use on dichondra or bentgrass lawns

User questions & answers

Question:	It is ok to put Weed and Feed after putting this product but before 30 days are over. Says at the back to wait for 30 days before another application
Answer:	You would want to wait the entire time before applying another product with fertilizer. If you have broadleaf weeds now, you can spot treat with Ortho Weed B Gon.
Question:	I just applied Crabgrass preventer. How long must i wait to lay down seed to grow grass
Answer:	In what I’ve read before, 6-8 weeks. At that point you should wait until fall, which is there ideal grass time in most climates. It gives the grass a chance to start growing on top, then winterize and grow strong roots so that spring will be awesome. About 3 years now I’ve been applying this strategy and find my grass is greener than all the neighbors. There is one neighbor who has a thicker lawn but he has a different slope in his yard and has been at it much longer. I will overtake him!
Question:	How soon can I throw down some new seed? I would like more kentucky blue in my lawn
Answer:	you have created a force field. only way is to put down new loam 1/2'' thick then seed . late august aerate lawn then seed,& do it like your feeding the chicken & those hens are hungry. next year you will not believe, keep your deck clean & blades sharp. GOOD LUCK
Question:	Okay to use in August
Answer:	I have Poa Annua and have been doing a lot of research on it. Many websites with information about Poa Annua say for effective control, besides Spring treatment it is good to put pre emergent down in August/September. Here is a quote from the Purdue University Extension website: "Poa annua is a winter annual that germinates in the late summer/early fall once soil temperatures fall below 70o F. Seedlings mature in the fall, overwinter in a vegetative state, and flower and produce seed in late spring and early summer." I just chatted with Scott's website and they said this product can be effective when used in this manner. I plan to apply it then AND next Spring. Most of the lawns in my development have been taken over by Poa Annua but I am still fighting the fight and hope to win or at least keep it to a minimum.

Product features

Get An Early Start This Spring

Protect your lawn all season long against listed weeds, including crabgrass, all while feeding for a fast green-up after winter.

When To Apply To Prevent Weeds

Apply in early spring to prevent the germination of crabgrass, chickweed, poa annua, and other common lawn weeds, before they start to spread. Apply before the 3rd or 4th mowing to protect all season long.

Tips For Lawn Care Success

First, regular feedings help your lawn look it’s best and provide the nutrients it needs to withstand the stress of weeds, weather and activity. Secondly, after you mow leave the grass clippings on the lawn. This allows grass to use water more effectively. Finally water, utilize nature’s sprinkler as much as possible. When you do have to water, do it between 6 and 10 am - less water is lost to evaporation and more reaches the roots.

User questions & answers

Question:	Does it prevent crabgrass
Answer:	Yes - this product is very effective in the prevention of crabgrass and other weeds as listed on the product label.
Question:	Can this be used on Zoysia Grass
Answer:	Yes this may be used in established Zoysia.
Question:	What are the spreader settings for a scotts edge guard spreader
Answer:	It varies depending on how much of a coat you want to apply. The pictures on the page show that the edge spreader can range from 4 to 7.5
Question:	When should I put it down
Answer:	In the late winter or early spring. Crabgrass and other annual weeds that you are trying to prevent often germinate after several days with soil temperatures (NOT air temperatures) being around 55 degrees. The microbes in the soil are what break down this pre-emergent and since microbes in the soil are fairly dormant in cold weather, that means you can put this down early, well before the soil reaches 55 degrees and the pre-emergent herbicide will still be active when the soil reaches the temperatures where annual weeds start to germinate. This does not kill the seeds, it stops root development as the seeds germinate so the weed/plant does not reach a stage where it will emerge from the soil and grow. Many lawn care professionals put down their pre-emergent herbicides when the soil temperatures are in the 35-45 degree range to prevent weeds. Oddly, I have yet to see anybody state an actual temperature for the soil as a guide to apply pre-emergence herbicides in he fall...? Keep in mind this will prevent plants from growing, so if you are planning on putting down new grass seed or overseeding to thicken growth in your lawn, this will also prevent desirable plants and grass from germinating as well.

Product features

Prevent Weeds All Season Long

Barricade is The Andersons professional-grade pre-emergent weed control. Containing 0.48% of the active ingredient prodiamine, Barricade is one of the best and most cost-effective granular weed preventers on the market. It can be used on established lawns and landscape beds to prevent over 30 grass and broadleaf weeds like crabgrass, goosegrass, foxtail, lambsquarter, henbit and more.

Barricade features The Andersons patented Dispersible Granular (DG) Technology which allows each granule to disperse into thousands of micro particles after coming into contact with water. Because of DG Technology, Barricade can move past the thatch layer of your lawn and into the soil where it prevents the germination of weed seeds.

When To Apply Barricade - Spring and Fall

Barricade is a pre-emergent weed control, which means that is designed to prevent weeds. Application timing is critical to the product's performance.

To prevent summer annual weeds in both northern and southern turf types, apply Barricade in early spring prior to soil temperatures reaching 55 degrees Fahrenheit at a four inch depth. Applying at this time will prevent weed seeds from germinating.

In southern zones, Barricade can be reapplied in the fall to prevent annual winter weeds like poa annua, also known as bluegrass.

Remember, Barricade must receive irrigation or light rainfall of at least .05 inches for the herbicide prevention to activate.

Barricade and Seeding

In the same way that Barricade prevents the germination of weeds, it can also inhibit the germination of turf.

If you already seeded wait 60 days or until after the second mowing, whichever is longer, before you apply Barricade.

How long you should wait to seed or overseed after applying Barricade depends on your climate. Refer to the table below for recommended intervals.

Product description

Preen Lawn Crabgrass Control prevents crabgrass and other grassy and broadleaf weeds for up to 4-months when applied prior to their germination in lawns and ornamental turfgrasses. It also provides post-emergence control of seedling crabgrass for up to 4-weeks after it germinates. Don't choose between killing and preventing get both. Because it can be applied later in spring, Preen Lawn Crabgrass Control provides season-long control for some of the toughest weeds, including crabgrass, chickweed, henbit, yellow foxtail and spurge. Use it on many types of cool and warm season grasses, including Bent grass, Fescues, Kentucky bluegrass, Ryegrass, Bermudagrass, Carpet grass, St. Augustine grass and Zoysiagrass.

• Stops crabgrass all season and can be applied up to 4-weeks after crabgrass emerges
• Prevents crabgrass and 40+ common lawn weeds
• Prevents crabgrass all season
• Can be used on cool and warm season grasses: creeping bentgrass, Kentucky bluegrass, fine fescue, tall fescue, perennial ryegrass, bahiagrass, bermudagrass, buffalograss, carpetgrass, centipedegrass, St. Augustinegrass, zoysiagrass, apply as directed
• Covers 5, 000 sq ft

User questions & answers

Question:	Is it corn gluten
Answer:	Thank you for your inquiry! Preen Lawn Crabgrass Control active ingredient is Dimension, which is a pre-emergent for crabgrass. If you are looking for a Preen product that is 100% corn gluten meal it would be Preen Natural Vegetable Garden Weed Preventer.
Question:	How soon after I apply scotts turf builder can I apply this
Answer:	You should be able to apply the same time. It's a crabgrass control. Not a feet. Turf builder is a fertilizer.
Question:	How soon can I plant grass seed after applying this
Answer:	Thank you for your inquiry. You would not be able to plant grass seed for 12 weeks, after applying Preen Lawn Crabgrass Control.
Question:	Is this safe for shrubs
Answer:	Thank you for your inquiry! Preen Lawn Crabgrass Control cannot be applied around shrubs.

Product features

Pre & Post Emergent Crabgrass Control

Preen Lawn Crabgrass Control gives you both pre and post-emergent control of crabgrass and other listed weeds when applied either in spring or fall. This product provides pre-emergence control of crabgrass and control or suppression of other listed weeds for up to 4 months when applied prior to germination. It also provides post-emergence control to crabgrass, and is effective for up to 4 weeks after it has germinated.

Prevents Crabgrass & 40+ Common Lawn Weeds*

Preen Lawn Crabgrass Control provides pre-emergent control of crabgrass, as well as control or suppression of other broadleaf weeds and grasses including barnyardgrass, foxtail, carpetweed, henbit, knotweed, and spurge. Whether your weeds cover the whole lawn or you just have a patch in need of spot treatment, this product has it covered. *See use directions for complete list of treated weeds.

Compatible Grass Types

Preen Lawn Crabgrass Control can be used on the cool and warm season grasses listed on the label. Apply using a drop or rotary spreader designed for granular lawn care products. See complete use instructions on the product label.

Product description

GreenView Crabgrass Control plus Lawn Food with Preen prevents crabgrass all season and contains fertilizer to set the stage for exceptional performance because it provides what the lawn needs to thrive. With both readily available and controlled release nutrients that improve grass plant vitality. When fertilized with GreenView Crabgrass Control plus Lawn Food with Preen, lawns are better able to withstand the stresses of heat and drought and they maintain green color longer and exhibit quicker green up. You can count on GreenView Crabgrass Control plus Lawn Food with Preen to provide consistent, green color and even turf growth.

• Prevents crabgrass all season
• Restores nutrients to the soil
• Speeds root growth to improve nutrient absorption and helps lawns retain water to protect against drought
• Apply in spring; features both immediate release and time-released nitrogen providing continuous feeding for up to 8 weeks
• Covers 15,000 sq ft
• GreenView Yard Wide Guarantee - Your Satisfaction Guaranteed Or Your Money Back

Product description

Kills lawn weeds plus crabgrass without harming the lawn.

• ALL-in-ONE FORMULA: BioAdvanced's All-in-One formula kills listed lawn weeds and crabgrass without harming the lawn
• WEED KILLER: Kills over 200 listed broadleaf weeds like dandelion and clover PLUS crabgrass
• ROOT KILLER: Kills even the toughest weeds to the root
• RAINPROOF PROTECTION: Systemic rainproof in 1 hour
• COVERAGE AREA: Treats up to 6,250 square feet
• RESTRICTIONS: Not for sale in HI, NY, TX

User questions & answers

Question:	will it damage shrubs and flowers
Answer:	Keep the spray away from any type of ornamental flowers or Shrubs. It is made for lawn weed control only, not flower beds. You may try using preen granules around your flower beds. If you use colored mulch around those flowers and shrubs you will help control the weed population and enhance the beauty of the shrubs and flowers. Hope this helps. Steve
Question:	how may square feet does the entire 40 ounces of the product treat
Answer:	According to the manufacturers (Bayer's) directions 3.2 fl. oz. mixed in one gallon of water treats 500 sq. ft. - So your 40 fl. oz. divided by 3.2 equals 12.5, then times 500 gives you 6,250 sq.ft.Anthony
Question:	does it contains quinclorac
Answer:	yes Quinclorac 1.61%
Question:	it does not say what the mix is, how much per gallon of water
Answer:	3.2 oz per gallon treats 500 sq ft.

Product features

BioAdvanced All-In-One Lawn Weed & Crabgrass Killer

Our exclusive formula kills listed lawn weeds plus crabgrass in one easy step. Treats 5000 square feet, making it ideal for large areas. Controlling lawn weeds plus crabgrass in your lawn has never been easier.

• Kills over 200 listed broadleaf weeds like dandelion and clover
• Won't harm lawns when applied as directed
• Rainproof in 1 hour

EZ-Grip One Touch Sprayer

Application for large areas just got easier. Simply attach this product your garden hose, turn on the water and use your thumb to activate the sprayer. Use this tip when finished spraying: turn off the hose, then turn the sprayer on once more to relieve the water pressure before detaching.

Kills Crabgrass To The Root

Plus, it kills foxtail, sandbur, Japanese stiltgrass, barnyard grass, panicum and other listed weeds.

Kills To The Root

Exclusive formula kills listed lawn weeds, plus crabgrass to the root in one easy step. Treats 5,000 square feet, making it ideal for large areas.

Product description

Ortho Weed B Gon plus Crabgrass Control Ready-To-Use2 is guaranteed to kill crabgrass, dandelions, and other listed common lawn weeds to the root! With the convenient trigger applicator, you can kill 200+ weeds without damaging your lawn (When used as directed) for easy and effective spot treatment. And Ortho Weed B Gon starts working immediately; see results in hours!

• Kills crabgrass, dandelions and other common lawn weeds
• Kills weeds to the roots
• Kills 200+ weeds
• Won’t harm the lawn— (when used as directed)
• Starts working immediately

User questions & answers

Question:	does this item have 2 wands to go with it
Answer:	No only one
Question:	Does this kill clover
Answer:	It did not seem to kill our clover. We have red clover w yellow flowers& reg. Green clover. It was used on it a couple of x’s but is nice & healthy.
Question:	Will this get rid of quackgrass
Answer:	yes
Question:	How much do I use for crabgrass
Answer:	This stuff contains Quinclorac which is the same stuff we used commercially with good results. The thing about crabgrass, (or any undesirable grasses), is they take a long time to kill. You can up the dosage but take the risk of killing the good grass as well. When Crabgrass starts to die, it first turns colors or red, purple or orange. It will not disappear completely like dandelions or any broadleaf. However it will not come back the next year. That said, this Quinclorac does not prevent any new seeds from sprouting which is what you might have had. Crabgrass puts out a tremendous amount of seeds each year if not killed early enough. (They only spread by seeds and all of it dies at the first frost. ) The key is to hit it hard and often early when it first sprouts before it goes to seed. Any weed seeds can last up to 5 years in the soil before they germinate depending on the soil moisture and temperature. This is why you may see new weeds when you disturb the soil in any way. A lush thick lawn will keep the soil temps down and many seeds will rot before germinating. This is why crabgrass and other weeds tend to sprout next to driveways, etc. because the temps are higher. A neglected, (problem) lawn can take 3-4 years of constant attention to become weed free. Your first application in the spring should be a strong fert with pre-emergent. This will kill off any seeds, (including grass seeds), that try to germinate. Pre-emergent lasts about 90 days. As the temps get hotter, back off on the fert, (unless you water in between the raindrops), and spot treat weeds as needed. No need to weed control the whole lawn as this is a waste. In the fall as temps drop and rain comes back, step up the fert and weed killer again. If you plan to spread new seed wait until fall. The temps are lower, there is usually more rain, the pre-emergent is done, and traffic on the lawn is mostly done. When reseeding, stay off the lawn as much as possible. No foot traffic, dogs, or weed control. I always told my customers to seed an area that they could cover with a few sprinklers and an automatic timer. Otherwise the seed won't take. Also, stay off the lawn when there is frost on it as you can kill the grass. Unfortunately, a very lush, thick lawn is fairly expensive as it can require a lot of water and or chemicals. A full sun lawn requires much more water than a shaded lawn, but recovers from damage quicker. The best lawns I have seen had an underground sprinkler system and had a good, timed lawn care service. Once we got the weeds under control in such a lawn, they required little, if any, weed killer.

Product features

Concentrate

Great value - ideal for large or small areas. Available sizes include: 32 oz. covers up to 5,000 sq. ft. and 40 oz. covers up to 6,400 sq. ft. Use with a Tank Sprayer or Ortho Dial N Spray.

Ready to Use

Perfect for spot treatments. Available in 24 oz. Ready to Use, 1.33 Gallon Ready to Use with Comfort Wand or 1 Gallon Ready to Use with Trigger. Comfort Wand provides precise control - spray only what you want - and is reusable with the refill bottle.

Ready to Spray

Connect directly to a garden hose to use for a broadcast application with no mixing or measuring. Available in 32 oz. size that covers up to 5,000 sq. ft.

Product description

Tenacity herbicide can be used for pre- and post-emergence control of more than 46 broadleaf weed and grass species. Its active ingredient, mesotrione, is based on a naturally occurring compound produced by the bottlebrush plant (Callistemon citrinus) that inhibits photosynthesis in susceptible plant species. It is absorbed by plants through the roots, shoots and leaves and distributed throughout the plant by both xylem and phloem translocation. KEY FEATURES Weeds controlled include crabgrass, ground ivy, yellow foxtail, yellow nutsedge and nimblewill. It also controls unwanted bentgrass. Provides post-emergent control of tough-to-control weeds Controls weeds at seeding reducing weed competition KEY BENEFITS Prevents and controls crabgrass pre or post up to four tillers Eliminates weeds at seeding so new grass can flourish.

• Tenacity is a systemic pre-emergence and post-emergence herbicide for the selective contact and residual control of weeds in turfgrasses.
• When applied as a pre-emergent, weeds absorb Tenacity during emergence from the soil.
• Target pests: Barnyardgrass, Carpetweed, Chickweed, Clover, Crabgrass (large & smooth), Dandelion, Foxtail, Goosegrass, Henbit, Yellow Nutsedge, Purslane, Thistle, Wild Carrot and others
• Active Ingredient: Mesotrione 40%
• Date printed on bottle is Manufacture Date, not expiration. Shelf Life: 5-8 years from date of manufacture when properly stored. Keep out of direct sunlight and extreme temperatures

User questions & answers

Question:	How much lawn will this 8oz bottle cover? We have .3 of an acre
Answer:	The 8 oz bottle will produce 96 gallons of solution using 1/2 teaspoon per gallon of water. I forget what the coverage is but it will certainly cover .3 acres using a pump sprayer.I have been using mine on my .5 acre for two years and I have only used about 1/3 of the 8 oz.
Question:	Anyone know how tenacity compares to a product called "dismiss"? i have some nutsedge to get rid of and i'm trying to decide which to get. thanks
Answer:	tenacity is labeled for nutsedge. . Dismiss is the the better choice, however. Usually with tenacity, you have to apply it at least two to three times, at two week intervals. They are both broad spectrum. Tenaciity's claim to fame is its ability to kill grassy weeds, like Nimblewill. They are both labeled for Goose grass. I don't think Dismiss is labeled for Nimblewill. PS: spectricide makes a good 4 way for the home owner. It has 24d, dicamba, quinchlorac, and sulfantrazone (dismiss). spelling. they sell it on amazon and lowes.
Question:	can i apply over
Answer:	The official answer is no for most herbicides. Depending on what you're trying to control. Here is a link to one of the best reports I have found - http://archive.lib.msu.edu/tic/golfd/article/2012oct33.pdf. This report shows great results with mid-80 degree temperatures in the control of POA ANA (Which is what I'm challenged with controlling). The general rule of thumb with Tenacity is the higher the temperatures the more applications (small dosage) needed for control. Tenacity has a half-life of 5-15 days depending on the temperatures - the higher temperatures the lower the half-life. The report and other reading also indicates that Tenacity needs to stay in the plant at or above the half life levels for ~ about 14 days or so to gain a high level of control. My advice would be to look for a week when temperatures are expected to average below 90 degrees and make a couple applications during that week and observe the control that you achieve - then goo from there. I experimented for a couple seasons using this report to get a feel for the best application frequency, rates, temperatures and timing (time of year). I hope this is helpful. Good luck and all the best.
Question:	what is surfactant? Is it included with tenacity
Answer:	A surfactant is a separate product that you add to your applicator tank. It helps the Tenacity stick to leaf blades and better kill the weeds. I used Bonide Turbo spreader sticker. It, or something similar is available in small bottles in garden centers. The ratio I used for nimblewil was 1 teaspoon of Tenacity and four teaspoons of surfactant per 1 gallon of Water.

Product description

Quali-Pro's Prodiamine 65 WDG provides pre-emergent grass and broadleaf weed control. Flexible application allows for both spring and fall use providing season long crabgrass control. Available in a 5 pound bottle.

• PRE-EMERGENT HERBICIDE: Quali-Pro's Prodiamine 65 WDG provides pre-emergent grass and broadleaf weed control. Flexible application allows for both spring and fall use providing season long crabgrass control. Available in a 5 pound bottle.
• FEATURES & BENEFITS: Excellent tank mix partner with fertilizers and iron solutions
• USE SITES: Nurse, Landscape, Turf, Trees, Golf Courses
• EFFECTIVE AGAINST: Annual bluegrass (Poa annua), Henbit, Knotweed, Chickweed, Spurge, Foxtail, Goosegrass
• ACTIVE INGREDIENT: Prodiamine 65%

User questions & answers

Question:	How often do you need to apply this treatment
Answer:	As often as you want as long as you do not go over the maximum amount for your turf type per year. For some turf types, that is about .83 ounces by weight of this dry granule per 1,000 sq. ft. Most typically people apply this in the late winter or early spring. Many say to put this down when the soil temps are at 55 degrees in the winter/spring, but that is when crabgrass starts to germinate. Many lawn care professionals say to put this down earlier, when the temps are 40 to 45 degrees because it is the bacteria in the soil that break down the product and at these temperatures, the bacteria are pretty much dormant. You apply at 0.185 ounces by weight per 1,000 sq. ft. (for any grass type) and that will give you 3-4 months of protection when put down at those temps above. Put down 0.28 ounces per 1,000 sq. ft. to give 4 months of protection in the fall. I apply when the night time temperatures start dropping into the low 70's and upper 60's. I saw someone say you want this down before the soil temperatures drop to 70 in the late summer/early fall, but I have not confirmed this. So if the day temps are in the 80's and 90's and the night temps are in the 70's or upper 60's, you should still be ahead of the annual weeds you're trying to prevent in the fall.
Question:	Is this product safe for centipede grass thats 1 year old
Answer:	This should be safe on any established grass which typically means the grass has grown enough to be mowed 4+ times. You can put it down a little earlier depending on the grass type, but better safe than sorry. If you put this down too soon you can harm the new grass while it is maturing and if you do this, the prodiamine will stop new grass seed (as well as weeds) from germinating for a few months.
Question:	Will it prevent crabgrass
Answer:	Yes. Prodiamine is broken down by the microbes in the soil, and the microbes do not really start to become very active until the soil temperatures are higher...like 50+ degrees (not 100% positive of what temp here, but you get the idea). Crabgrass seeds start to germinate once the ground temperatures start to reach about 55 degrees. So you can put this down when the ground temperatures are 40-45 degrees and it will still be very effective once the ground temperatures reach ~55 degrees and provide the protection you need, versus waiting until the ground temps are already at 55 degrees and you may be too late. What this does it once the crabgrass and other seeds start to germinate, Prodiamine will stop the roots from progressing once the seeds start to germinate, which kills the plant before it completely germinates and breaks through the soil. What I like to do (heard this from a lawn care professional - YouTube channel 'Pest & Lawn Ginja') is get use a cheap meat thermometer and check the soil temps and once the ground temps are around 55 degrees, put down a different pre-emergent called Dithiopyr. This will also stop seeds from fully germinating as the Prodiamine does, but Dithiopyr also acts as a post-emergent for very young weeds and crabgrass up to 2-3 tillers. So you get early protection and a second layer of protection if required.
Question:	will it work with no pre mixing sprayer connected to water hose? if so, is setting of 2tsp for one gallon will work
Answer:	I wouldn't recommend it. Prodiamine, straight out of the container, is in granular form. Each granule is about 1 mm in diameter. All the hose end sprayers I know of require dispensing of the product as a liquid. For my application, which is to treat for Annual Bluegrass (Poa Annua) in a Zoysia lawn, I used a 3 gallon backpack tank sprayer. I measured 3/4 Tbsp. Prodiamine and poured it into a quart container. I then added 3 cups water and mixed the two together into a concentrate. I then poured the concentrate into the backpack tank sprayer and added water to make 3 gallons. 3 gallons will treat 750 sq. ft. The amount to use is 1/4 Tbsp. Prodiamine per gallon of water. Each gallon will treat 250 sq. ft.There are 3 tsp. in a Tbsp.

Product description

Vpg hi-yield, 9 lb, 5,000 soft coverage, Crabgrass control, balan/TREFLAN, provides season long control of pre-emergent Crabgrass, foxtail & others in most turf grass.

• Vpg hi-yield
• This is easy to use
• This product is manufactured in China

User questions & answers

Question:	bag covers how many sq. ft
Answer:	Yes, you can bake a cake. I bake cornbread all the time. Since it is a convection oven it will cook in less time. It is large enough you can bake a pizza in it. I just do not like to bake things that will splatter and get it dirty inside.
Question:	Can this be used on Kentucky blue grass
Answer:	Very quickly. I use my little oven almost every day. I have been in this home for 22 months and have used my $3,500.00 Kitchen-aid double oven twice! Don't know about a "refurbished" one, but I love mine! If and when it dies, I'm going to replace it with the upgraded model with "Air Fry".
Question:	When is the best time to use this crabgrass killer
Answer:	The unit is rated as 1800 watts. That means that its peak load will be 15 amps r.m.s.(1800 watts divided by 120 volts).

Product description

GreenView Crabgrass Control plus Lawn Food with Preen prevents crabgrass all season and contains fertilizer to set the stage for exceptional performance because it provides what the lawn needs to thrive. With both readily available and controlled release nutrients that improve grass plant vitality. When fertilized with GreenView Crabgrass Control plus Lawn Food with Preen, lawns are better able to withstand the stresses of heat and drought and they maintain green color longer and exhibit quicker green up. You can count on GreenView Crabgrass Control plus Lawn Food with Preen to provide consistent, green color and even turf growth.

• Prevents crabgrass all season
• Restores nutrients to the soil
• Speeds root growth to improve nutrient absorption and helps lawns Retain water to protect against drought
• Apply in spring; features both immediate release and time-released nitrogen providing continuous feeding for up to 8 weeks
• Covers 5,000 sq ft
• GreenView Yard Wide - Your Satisfaction Or Your Money Back

User questions & answers

Question:	is this available in the 15000 sf bag
Answer:	I am not certain about a large area. I use it for spot killing of weeds. The product works well on some weeds, but doesn't phase others. Hope this helps you. Cheryl
Question:	Does this product prevent Bermuda grass seed from growing
Answer:	No. You spray as is. Honestly, I couldn't get it to work. I ended up requesting a refund. Such a bummer.
Question:	I live in Mass. It is April 17. Is it too late to apply this for this season? My grass is growing but i do not see any crabgrass yet
Answer:	The amount per fluid ounce used varies based upon the variety of grass you are spraying per 1000 sq ft. Once you determine your grass type you mix the recommended Sedge Ender amount into a one gallon sprayer of water. You can see more in details on http://www.bonide.com/lbonide/backlabels/l069.pdf
Question:	Is the active crabgrass preventer in this product Dithiopyr
Answer:	Typically it is best to wait 2-3 days after application before mowing

Product description

Ortho Weed B Gon plus Crabgrass Control Ready-To-Spray is guaranteed to kill crabgrass, dandelions and other listed common lawn weeds to the root! When used as directed, you can kill over 200+ weeds without damaging your lawn. It starts working immediately!

• Kills crabgrass, dandelions and other common lawn weeds
• Kills weeds to the roots
• Kills 200+ weeds
• Won't harm the lawn—guaranteed* when used as directed.
• Starts working immediately

User questions & answers

Question:	is it pet freindly
Answer:	According to the label once dry it is pet saf. I have never had a problem with my dogs by following that suggestion by manufacturer. I have been using this for more than 20 years and never seem to go without canine
Question:	Can this product be used in conjunction with grub spray
Answer:	I am not an expert, but I would not spray grub control on the same day.
Question:	will this product burn my lawn in the extreme heat of Arizona? And will it kill spurge aswell as crabgrass
Answer:	It will only burn the lawn if it's over 90 degrees outside. I used to live in the west your going to have to wait for it to cool down to 90 or early morning when it's cooler. Must be below 90 though. Once it's dry you won't have any trouble if it gets hotter out.
Question:	Can this be used with Step 2 law care weed and feed stuff
Answer:	Depending on how even you covered your lawn. Fertilizer in the springtime only promotes top growth . Be cauious about applying during windy conditions. Weed and feed during the fallhelps promote strong grass roots and jump start next years lawn with less weeds.

Product features

Kill Crabgrass and Broadleaf Weeds - Won''t harm lawns when used as directed

Ortho Weed B Gon MAX Plus Crabgrass Control: Overview and Benefits

· Kills weeds, not lawns!

· Rainproof in 1 hour

· See results in 24 hours

The Ortho Guarantee:

If for any reason you, the consumer, are not satisfied with this product, mail us your original proof of purchase to obtain a full refund of your purchase price.

Visit the Ortho Amazon store for more Products

Ortho offers a full line of products specifically formulated to kill weeds. Whether it is crabgrass, dandelions or creeping charlie, Ortho has the product for you.