Specticle FLO Herbicide

5 out of 5 stars 1 Reviews | 26 Q&A

Specticle FLO Herbicide
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5 out of 5 stars Rating: 5

1 Review | 26 Q&A

Product Overview

Specticle FLO Herbicide is a professional-grade pre-emergent herbicide for long-lasting prevention of annual grassy and broadleaf weeds in established warm-season turf. Containing 7.4% indaziflam, Specticle FLO controls or suppresses more than 75 weeds, including crabgrass, annual bluegrass (Poa annua), goosegrass, annual sedges, kyllinga, spurge, and oxalis. It can be used as part of spring and fall pre-emergent weed control programs in residential and commercial lawns and other labeled sites.

Specticle FLO is a Group 29 herbicide that inhibits cellulose biosynthesis in developing weed seedlings, preventing susceptible weeds from becoming established. While primarily a pre-emergent, it also provides limited early post-emergent activity against certain weeds, including annual bluegrass, crabgrass, and oxalis. It will not control plants emerging from established tubers, rhizomes, bulbs, corms, rootstocks, or woody vegetation.

The low-odor, non-staining liquid formulation is labeled for use in lawns, sod farms, sports fields, parks, cemeteries, golf course roughs and fairways, landscape ornamentals, hardscapes, Christmas trees, conifers, and other labeled areas. Avoid contact with the leaves or green stems of susceptible plants, as yellowing or tissue damage may occur.

For applications to sod farms, golf courses, and non-crop areas other than lawns, do not apply within 25 feet of ponds, lakes, rivers, streams, wetlands, or habitats containing aquatic or semi-aquatic plants.

Note: Bayer Environmental Science Professional is now Envu. Specticle FLO packaging may feature either Bayer or Envu branding.

Features and Specs

Active Ingredient Indaziflam 7.4%
Target pests Broadleaf weeds: American black nightshade, bittercress, California burclover, carpetweed, clover, common chickweed, common groundsel, common purslane, dandelion, doveweed, eclipta, evening primrose cutleaf, Florida pusley, hairy fleabane, horseweed, Kochia, lambsquarters, lawn burweed, little mallow, oxalis, panicle willowherb, plantain, prostrate pigweed, redmaids, shepherds purse, sowthistle (annuals), spurge, swinecress, wild mustard

Grassy weeds: Annual bluegrass/Poa, cheat grass, common barnyard grass, crabgrass, foxtail brome, giant foxtail, goose grass, green foxtail, guinea grass, large/hairy crabgrass, mouse barley, nutsedge (annual), perennial rye grass, rice flatsedge, smooth crabgrass, tufted lovegrass, yellow foxtail

Sedges: Annual Sedges and Kyllingas
For use in Warm-Season Turf-grasses Only: Bermudagrass, Zoysiagrass, Centipedegrass, St. Augustine, Buffalo, and Bahiagrass

Not For Use on Cool Season Turf such as Fescue, Kentucky Bluegrass, Ryegrass or Bentgrass
Application * See label for complete application instructions
Pet safe Yes, if used as directed on label
Formulation Professional Product
Group 29 Herbicide
NOT FOR SALE TO AK, DC, HI
NY (Restricted To Licensed Applicators Only)
Shipping Weight 1.35 lbs
Manufacturer Envu (Formerly Bayer) (Mfg. Number: D00000991)
EPA Registration 101563-207

Details

Specticle FLO Herbicide offers long-lasting weed prevention for established warm-season lawns and other labeled areas. Proper application timing, rate, and activation are important for getting the best results from this pre-emergent treatment. Use the information below to learn when and how to apply Specticle FLO, where it can be used, and what to expect after application.

 

What weeds does Specticle FLO Herbicide control?

Specticle FLO provides pre-emergent control of more than 75 annual grassy and broadleaf weeds, including many difficult-to-control lawn weeds.

Common grassy weeds and sedges controlled include:

  • Crabgrass, including large, hairy, and smooth crabgrass
  • Annual bluegrass (Poa annua)
  • Goosegrass
  • Annual sedges
  • Kyllinga
  • Foxtails
  • Barnyardgrass
  • Annual ryegrass

Common broadleaf weeds controlled include:

  • Spurge
  • Oxalis
  • Chickweed
  • Clover
  • Dandelion
  • Doveweed
  • Florida pusley
  • Lawn burweed
  • Plantain
  • Purslane
  • Pigweed
  • Wild mustard

Refer to the Specticle FLO Herbicide label for the complete list of controlled and suppressed weeds.

 

Is Specticle FLO a pre-emergent or post-emergent herbicide?

Specticle FLO should primarily be used as a pre-emergent herbicide to prevent weeds before they emerge. It works in the soil to inhibit the development of susceptible weed seedlings as they germinate.

  • It has limited early post-emergent activity against certain weeds, including annual bluegrass, crabgrass, and oxalis.
  • It should not be relied on as a general post-emergent herbicide for established weeds.
  • It does not control weeds or other plants emerging from established tubers, rhizomes, bulbs, corms, rootstocks, or woody vegetation.
 

What grass types can Specticle FLO Herbicide be used on?

Specticle FLO is labeled for use on established warm-season turfgrasses, including:

  • Bermudagrass
  • Zoysiagrass
  • St. Augustinegrass
  • Centipedegrass
  • Bahiagrass
  • Buffalograss

Do not use Specticle FLO on cool-season turfgrasses such as fescue, Kentucky bluegrass, perennial ryegrass, or bentgrass.

Always follow the label for turf-specific application rates and restrictions.

 

When should I apply Specticle FLO Pre-Emergent Herbicide?

Apply Specticle FLO before target weeds germinate. Application timing should be based on the weeds you want to prevent and local growing conditions.

  • Fall: Apply before winter annual weeds such as annual bluegrass (Poa annua) germinate.
  • Spring: Apply before summer annual weeds such as crabgrass and goosegrass germinate.
  • Apply early enough for rainfall or irrigation to activate Specticle FLO in the soil before weed germination begins.

Soil temperatures and local weed germination patterns are more useful for determining application timing than a specific calendar date.

 

How long does Specticle FLO last?

Specticle FLO can provide residual weed control for up to 8 months, depending on factors such as:

  • Application rate
  • Target weed
  • Soil conditions
  • Weather and environmental conditions

Always use the labeled rate for your turfgrass and target weeds and do not exceed the maximum annual application rate.

 

How much Specticle FLO Herbicide should I use per 1,000 sq. ft.?

The correct Specticle FLO rate depends on your turfgrass, target weeds, and desired length of control.

  • At the maximum rate of 10 fl. oz. per acre, this equals approximately 0.23 fl. oz. per 1,000 sq. ft.
  • The amount of water is based on how much your sprayer requires to evenly cover 1,000 sq. ft.
  • Measure Specticle FLO based on the area being treated, rather than simply using a set amount per gallon of water.

Refer to the Specticle FLO label for the appropriate application rate for your specific treatment.

 

Does Specticle FLO need to be watered in after application?

Yes. Rainfall or irrigation is required to activate Specticle FLO in the soil for maximum pre-emergent control.

  • Apply before target weeds germinate.
  • Water the treatment into the soil according to label directions if sufficient rainfall does not occur.
  • Activation should occur before weed germination.
  • Avoid excessive irrigation that could cause runoff into non-target areas.

Once activated, Specticle FLO establishes residual control in the soil to help prevent susceptible weeds from becoming established.

 

Can Specticle FLO Herbicide be used around trees, shrubs, and landscape ornamentals?

Yes. Specticle FLO is labeled for use around many field-grown woody ornamentals and established landscape plants, but applications should be made carefully.

  • Apply only to labeled sites and ornamentals.
  • Avoid contact with foliage and green stems of desirable plants.
  • Prevent spray drift onto sensitive vegetation.
  • Follow all ornamental-specific restrictions on the Specticle FLO label.

Yellowing or tissue damage may occur if the spray contacts susceptible herbaceous plant tissue.

 

Can I seed or overseed after applying Specticle FLO?

Specticle FLO can interfere with desirable turfgrass establishment because its pre-emergent activity prevents susceptible seedlings from developing.

  • Apply Specticle FLO only to established turf.
  • Do not seed or overseed immediately after treatment.
  • Follow the label's required interval between application and reseeding.
  • Consider future seeding or overseeding plans before incorporating Specticle FLO into your pre-emergent program.
 

Can Specticle FLO be mixed with other herbicides?

Yes, Specticle FLO may be tank mixed with certain labeled herbicides when additional weed control is needed and both product labels permit the combination.

This can be particularly useful when existing weeds are present, since Specticle FLO is primarily intended to prevent new weeds from emerging.

When tank mixing:

  • Confirm both labels permit the intended combination and treatment site.
  • Follow all application rates and restrictions.
  • Test compatibility when appropriate.
  • Maintain proper agitation during application.
 

How long can Specticle FLO stay in the spray tank after mixing?

Mix only the amount of Specticle FLO needed for your application. If the mixture is allowed to sit, the product can settle in the tank.

  • Use the mixed solution within 24 hours.
  • Re-agitate thoroughly if the mixture has been allowed to sit.
  • Maintain adequate agitation during application.
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  • 5 of 5 Stars

    Great Product

    By Al on 11/25/2020

    Great product!

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Questions & Answers

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Q
How much do you mix per gallon for use in a tank sprayer?

I read the label on how much to use on an acre, but for those of us with tank sprayers I would prefer to know an amount of product per gallon of water.

A
As with most herbicides the exact volume of water is not very important, you just need to be sure you are getting the correct amount of product on a specific area. Specticle FLO may be applied at different rates depending on the turf you are spraying on and the weeds you are trying to control. If you are using the highest rate of 10oz per acre, it breaks down to roughly 0.23 oz of Specticle per 1000 sq/ft in no less than 1-2 gallons of water for full and even application. The thing you have to keep in mind is that the water is the carrier with herbicides, not the diluter. So whether you mix the .23oz of Specticle in 1 gallon and spread it over 1000 sq/ft, or in 5 gallons over a 1000 sq/ft, both are correct. For maximum weed control with broadcast applications, add non-ionic surfactant

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60 of 72 people found this answer helpful

Q
What is the difference among these herbicides: Specticle G Herbicide, Specticle FLO, and Specticle 20 WSP Pre-Emergent ?

I'm looking for a long lasting herbicide. If it is a pre and post emergent product will be great, no matter the price

A

Specticle G Herbicide, Specticle FLO, and Specticle 20 WSP are all different versions of the same active ingredient, Indaziflam, and would be comparable.  G is for granules, FLO is a liquid and WSP is water soluble packets. The WSP form is no longer available.  Either the G or FLO would be good options to use but will only prevent weeds from emerging and will not affect actively growing weeds. 

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36 of 38 people found this answer helpful

Q
Do I use Specticle FLO as I do Prodiamine with a split application two times a year?
A

No, Specticle FLO is a pre emergent herbicide that can only be used once in a 12 month time period.   

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22 of 83 people found this answer helpful

Q
What is the timing of applying Specticle FLO?

If I apply in Fall, it tells to follow up with another treatment 45-90 days later. If you do that, will there be a need to re-apply a pre emergent in the spring?

A
The need for a spring application of a pre-emergent is almost always needed, but it truly is going to be dependent on the weeds you are primarily looking to prevent and when they germinate the most in your area. You can often consult with your local cooperative extension office or local master gardner to find out when the weeds you are looking to target germinate in your area for a better idea of application intervals that will best suit your needs for thorough application and results.

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18 of 22 people found this answer helpful

Q
How long will Spectical Flo last in a 200 gallon tank after its mixed?
A

You should use your Specticle Flo within 24 hours of mixing it in the tank.   Per their label: Mix the amount of Specticle FLO needed for immediate application needs. Settling can occur if the spray mixture is allowed to sit over an extended period of time. Re-agitate the spray solution before application.

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11 of 13 people found this answer helpful

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Specticle FLO Herbicide 5 out of 5 stars Rating: 5 (1 Reviews / 26 Q&A)

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