Coastal Herbicide

Coastal Herbicide

Have a Question? Ask Our Pros!

Call Us: 866-581-7378
Mon-Fri 9am-5pm ET
Email Our Pros
We're here to help
Live Chat
DIY Pros Available Now

You May Also Need

Advion WDG Insecticide

Average Rating

There are no reviews for this product yet. Be the first.

Product Overview

Coastal Herbicide is a powerful formula that provides pre- and post-emergent control of broadleaf and grassy weeds on four major warm-season turfs such as Bermudagrass, St. Augustine grass, Centipede grass, and Zoysia grass. It features a combination of three active ingredients Simazine, Prodiamine, and Imazaquin which offers different modes of action to widen broad-spectrum control of nuisance weeds, as well as eliminate the need for tank-mixing and allow better jug disposal. It also offers low lateral mobility and excellent resistance management, providing ultimate protection on different lawns and turfgrasses. It is effective against a wide variety of weeds on Southern grasses such as annual bluegrass, annual ryegrass, barnyard grass, black medic, burclover, buttercup, Carolina geranium, carpetweed, common chickweed, dollarweed, dovetail, fall panicum, fiddleneck, and more, including tough weeds like crabgrass and Poa annua. This economical formula is labeled for use on residential and commercial turf, golf courses, athletic fields, and sod farms. Available in a 2.5 gallon jug.

Features and Specs

Active Ingredient Prodiamine - 17.68% Imazaquin - 7.62% Simazine - 27.20%
Target pests Alyssum, amaranths, annual bluegrass, annual ryegrass, barnyardgrass, black medic, burclover, buttercup, carolina geranium, carpetweed, common chickweed, crabgrass, crowfootgrass, dollarweed, dovetail, eclipta, fall panicum, fiddleneck, etc.
For use in Established turf of Bermudagrass, Centipedegrass, St. Augustinegrass, and Zoysiagrass on golf courses (excluding golf course putting greens), athletic fields, commercial and residential turf, and sod farms/nurseries.
Application The use rates of this product range from 48 oz per acre up to the maximum rate of 64 oz per acre per application with a maximum of 113 fl.oz. per acre per year.
Pet safe Yes, if used as directed on label.
Formulation Liquid.
Dimensions 9.35 x 14.55 x 6.85 in.
Special Features Three active ingredients/modes of action broaden weed spectrum and reduce mixing time, and jug disposal. Excellent resistance management tool.
Shipping Weight 24.00 lbs
Manufacturer SipcamAdvan
EPA Registration 5481-629




  • The use of this product on sites with a known history of dinitroaniline-resistant or triazine-resistant weeds is not recommended.
  • Do not tankmix atrazine or additional simazine herbicide with this product.
  • Do not cut (harvest) treated sod before 90 days after application.
  • Do not graze or use clippings for animal feed.
  • Do not apply just prior to or during spring transition or during periods of very slow turf growth or severe discoloration could occur (see “Application Timing” section).
  • Do not use on dicondria or winter overseeded turfgrasses such as ryegrass, fescue, bentgrass or poa trivialis when those species are desirable.
  • Do not reseed or winter overseed for 4 months after treatment.
  • Do not apply more than 2 applications per year or 113 ounces of product total per acre per year.
  • Do not apply within drip line of Mesquite trees.
  • Do not apply to golf course putting greens.
  • Do not apply with wind conditions at or above 15 mph.
  • Do not apply by air, chemigation or through any type of Ultra Low Volume (ULV) spray system (<5>
  • Do not blend this product onto dry fertilizer or any other granular material.


  • To avoid turfgrass injury, do not apply to newly planted, sprigged or set sod until the sod has rooted and exposed edges have filled in.
  • Application made during high humidity and temperatures (above 85 degrees) may occasionally exhibit temporary phytotoxicity/yellowing; but normally is fully recovered within 3 weeks.

It is the pesticide user’s responsibility to ensure that all products are registered for the intended use. Read and follow the applicable restrictions and limitations and directions for use on all product labels involved in tank mixing. Users must follow the most restrictive directions for use and precautionary statements of each product in the tank mixture.


Begin application with a clean water spray tank (remove scale, pesticide residues, and other foreign matter, and flush the system with clean water).


  1. Fill the tank with 1/2 or 3/4 the desired amount of water.
  2. Start mechanical or hydraulic agitation.
  3. Add dry formulation pesticides (if tank mixing).
  4. Slowly add the specified amount of this product.
  5. Add emulsifiable concentrate tank-mix products last.
  6. Add the remaining volume of water.
  7. Add adjuvants if desiring post-emergence weed control. For non-ionic surfactants add 0.25% v/v or crop oil concentrates at 1% v/v.

Mix recommended rate of this product with water and apply in a spray volume of 10 to 40 GPA.

Maintain continuous agitation to keep the material in suspension. For best results, use spray mixture the same day it is prepared.


Application Timing:

Apply this product anytime from Sept 15 thru May 31 with the exception of just prior to and during the spring transition. Do not apply if spring transition is imminent or expected within 3-4 weeks unless delayed green-up and/or temporary yellowing can be tolerated.

Use Rates:

The use rates of this product range from 48 oz per acre up to the maximum rate of 64 oz per acre per application with a maximum of 113 fl.oz. per acre per year. Length of control duration, size, and spectrum of weeds controlled post-emergence increase with the higher use rates. The use of a spray adjuvant is required to obtain post-emergence weed control (see Mixing Instructions). Mix the recommended rate of this product with water and apply in a spray volume of 10 to 40 gallons per acre.

For Fall and Winter applications -- 64 fl.oz. per acre is recommended.

For Spring applications -- 48 fl.oz. per acre is recommended if spring transition is expected within a month. Higher labeled rates may be used if the spring transition is at least 4-6 weeks away or has already occurred. Do not exceed the maximum of 113 fl.oz. per acre per year. Do not apply if spring transition is imminent or expected within 3-4 weeks as delayed Greenup and temporary yellowing may occur. Do not use after May 31st.

Apply this product in a minimum of 10 gals./A (0.5 gals./1,000 sq. ft.) of the carrier (water and/or fluid fertilizer) using a calibrated, low-pressure sprayer with 50-mesh or coarser screens. A broadcast boom or handheld wand designed for herbicide or insecticide application will provide the best results. Select nozzle pressure and the gallonage to provide complete coverage.


Pre-Emergence Weed Activity List:

  • Alyssum
  • Amaranths
  • Annual bluegrass
  • Annual morning glory
  • Annual ryegrass
  • Barnyard grass (watergrass)
  • Black medic
  • Brachiaria spp.
  • Burclover
  • Buttercup
  • Careless weed
  • Carolina geranium
  • Carpetweed
  • Common chickweed
  • Crabgrass (large, smooth)
  • Crowfoot grass
  • Cut leaf evening primrose
  • Dollar weed
  • Dovetail
  • Downey brome (cheat)
  • Eclipta
  • Fall panicum
  • Fiddleneck
  • Field sandbur
  • Filaree
  • Fireweed
  • Fivehook bassia
  • Flora’s paintbrush
  • Florida pusley
  • Foxtails
  • Goosegrass
  • Groundsel
  • Hairy bittercress
  • Henbit
  • Johnsongrass (seedling)
  • Junglerice
  • Knawel (German moss)
  • Knotweed
  • Kochia
  • Lambsquarters
  • Lawn burweed
  • Lovegrass
  • Mouseear chickweed
  • Mustard
  • Nightshade
  • Panicum (texas, fall, browntop)
  • Parsley-piert
  • Perennial rye grass
  • Pepperweed
  • Pineappleweed
  • Pigweed
  • Prickly lettuce
  • Purple deadnettle
  • Purslane
  • Ragweed
  • Rattail fescue
  • Redmaids
  • Red sorrel
  • Rescuegrass (Suppression only)
  • Russian thistle
  • Shepherspurse
  • Shieldscress
  • Signalgrass (Brachiaria spp.)
  • Silver hairgrass
  • Smartgrass
  • Spanish needles
  • Speedwell
  • Sprangletop
  • Spurge, prostrate
  • Tansymustard
  • White clover
  • Wild oats
  • Wild mustard
  • Wiregrass
  • Witchgrass
  • Woolly cupgrass
  • Yellow flower pepperweed
  • Yellow woodsorrel

Note: The use of Coastal on sites with a known history of dinitroaniline- or triazine-resistant weeds is not recommended.

Post-Emergence Weed Activity List: (For best results, use the maximum rate allowed and make applications with daytime temperatures at 60 degrees Fahrenheit or higher).

  • Annual bluegrass
  • Dollarweed
  • Corn speedwell
  • Hairy bittercress
  • Henbit
  • Knawl
  • Purple deadnettle
  • White clover
  • Wild garlic
  • Wild onions

Suppression (may provide control on newly emerged weeds at maximum rate):

  • Annual sedge (suppression only)
  • Bahiagrass (suppression only)
  • Buttercup
  • Carpetweed
  • Chickweed
  • Cudweed (suppression only)
  • Cutleaf evening primrose
  • Dandelion (suppression only)
  • Globe sedge
  • Lawn burweed
  • Parsley - piert
  • Pennywort
  • Purple nutsedge
  • Red sorrel
  • Rice flatsedge
  • Tall fescue violets (suppression only)
  • Yellow nutsedge
  • Green kyllinga
  • Field Sandbur (suppression only)


This pesticide is toxic to aquatic invertebrates. Do not apply directly to water, to areas where surface water is present, or to intertidal areas below the mean high water mark. Runoff and drift from treated areas may be hazardous to aquatic organisms in neighboring areas. Do not contaminate water when disposing of equipment wash water.

Imazaquin demonstrates the properties and characteristics associated with chemicals detected in ground water. The use of this in areas where soils are permeable, particularly where the water table is shallow, may result in ground water contamination. Simazine can travel (seep or leach) through soil and enter ground water which may be used as drinking water. Simazine has been found in ground water as a result of its use as a herbicide. Users are advised not to apply Simazine to sand and loamy soils where the water table (ground water) is close to the surface and where the soils are very permeable, i.e., well-drained. Your local extension agencies can provide further information on the type of soil in your area and the location of ground water.

Products must not be mixed or loaded within 50 feet of intermittent streams and rivers, natural or impounded lakes and reservoirs. Product must not be applied within 66 feet of points where field surface water runoff enters perennial or intermittent streams and rivers or within 200 feet of natural or impounded lakes and reservoirs. If this product is applied to highly erodible land, the 66 foot buffer or setback from runoff entry points must be planted to crop, or seeded with grass or other suitable crop.

Product must not be mixed or loaded, or used within 50 feet of all wells, including abandoned wells, drainage wells and sink holes. Operations that involve mixing, loading, rinsing or washing of this product into or from pesticide handling or application equipment or containers within 50 feet of any well are prohibited, unless conducted on an impervious pad constructed to withstand the weight of the heaviest load that may be positioned on or moved across the pad. Such a pad shall be designed and maintained to contain any product spills or equipment leaks, container or equipment rinse or wash water and rain water that may fall on the pad. Surface water shall not be allowed to either flow over, or from, the pad which means the pad must be self contained. The pad shall be sloped to facilitate material removal. An unroofed pad shall be of sufficient capacity to contain, at a minimum, 110% of the capacity of the largest pesticide container or application equipment on the pad. A pad that is covered by a roof of sufficient size to completely exclude precipitation from contact with the pad shall have a minimum containment of 100% of the capacity of the largest pesticide container or application equipment on the pad. Containment capacities as described above shall be maintained at all times. The above-specified minimum containment capacities do not apply to vehicles when delivering pesticide to the mixing/loading sites.

Additional state imposed requirements regarding well-head setbacks and operational area containment must be observed.

There are no reviews for this product yet. Be the first.

Questions & Answers

Have a question about this product?

There are no questions for this product yet. Ask the first.

$343.05 + Free Shipping*