Bayer Alion Herbicide is a concentrated, long-lasting formula designed to control a wide range of weeds in citrus fruit, grapes, olives, pome fruit, stone fruit and tree nuts. Indaziflam at an active ingredient concentration of 1.67 lbs. per gallon provides pre-emergent control of tough weeds such as buckwheat, burclover, carpetweed, chickweed, cudweed (and others). Bayer Alion Herbicide works by inhibiting cellulose biosynthesis in plants and delivers exceptional chemistry that helps control even glyphosate-resistant species. The product may be applied as a uniform broadcast or band application for effective prevention of weed emergence.

Alion Herbicide is a preemergence weed killer used for the protection of farmland and non-paved farm roads. It also provides preemergence weed control on farmstead building foundations, non-paved farm roads, ungrazed fences, shelter belts, and cropland. For more information on Alion Herbicide, read on. This article provides an overview of its use and price.

Alion is an herbicide that is used to control weeds in corn, soybean, and cotton crops. It is also used on non-crop sites such as roadsides. Alion works by preventing the growth of weeds by blocking photosynthesis. It takes a few weeks for Alion to kill the weeds, but once it does, they will not grow back for at least one year after spraying.

Most people use Alion Herbicide in conjunction with another herbicide so that there is no chance of resistance developing against Alion. The most common combination is using Alion with Roundup or other glyphosate-based products.

Features Chart

Active IngredientIndaziflam (Alkylazine) – 19.05%
Target pestsBuckwheat, Burclover, Carpetweed, Chickweed, Cudweed, Dandelion, Evening primrose, Filaree, Fleabane, Pigweed, Purslane, Pusley, Ragweed, Redmaids, Shepherdspurse, Brome, Bromegrass, Cupgrass, Junglerice, Millet, Barley, Bluegrass, etc.
For use inCitrus Fruit, Grapes, Stone Fruit, Pome Fruit, Tree Nuts, and Olives.
ApplicationMay be applied to the soil as a uniform broadcast or band application for the prevention of new weed emergence.
Pet safeYes, if used as directed on the label.
FormulationProfessional Product
Group 29 Herbicide
NY, VT (Restricted to Licensed Applicators Only)
Special FeaturesUp to six months of grass and broadleaf weed control.
Shipping Weight2.50 lbs
EPA Registration264-1106

Application rates

Alion is an herbicide designed to suppress many annual weeds. It is not recommended for use on hardy perennials, such as Kochia, tansy, and pigweed. Instead, it is effective on a wide variety of annual weeds, including wild buckwheat, common lambsquarters, and barnyard grass. In addition, it is highly effective on downy brome and foxtails.

Alion herbicide is applied at application rates of 3.5 to 6.5 ounces per acre, depending on the crop. However, you should not exceed this amount as excessive application rates may result in severe crop injury or death. For best results, apply Alion Herbicide to a dry soil surface. If you don’t wait 48 hours after application, the herbicide may not be effective on the crop. It will be useless on wet soil, so ensure that the surface is dry.

Before applying Alion herbicide, you must make sure that the grapes are vigorous and have grown for three years. Ensure that the soil is clean and free of clumps, cracks, and debris before applying the herbicide. Such conditions prevent the herbicide from reaching the roots. Aside from this, ensure that your soil is dry and free of debris. Otherwise, you will lose some of the herbicide’s effectiveness.

Alion is approved for use on many crops, including citrus and pome fruit. The active ingredient in Alion is indaziflam, which has been approved for use in roadside applications and certain horticultural situations. Its weed control spectrum and persistence are well-known. Additionally, Alion’s soil residual is over 150 days, which means that it will keep killing weeds long after the last application. Despite this, the herbicide’s effects will last until the crop is harvested.

Sensitive areas to Alion Herbicide

If you are spraying Alion Herbicide on a citrus grove, be sure to follow the instructions to avoid causing damage to your trees. You should avoid applying Alion Herbicide to wetlands or open channels that can allow the herbicide to reach the roots. Avoid spraying Alion Herbicide on the root zone of a tree that has not reached a mature stage of brown bark. Also, be sure to protect the tree trunk from spray contact by wrapping it in non-porous wraps, growing tubes, and waxed containers. Remember, the Alion Herbicide should only be used on mature tree trunks and is safe for most citrus varieties and hybrids.

Alion Herbicide is most effective in soils with higher organic matter. Higher soils with more organic matter and clay content may require higher Alion Herbicide rates. However, higher rates provide longer weed control and improve control in fields with heavy weed growth. For best results, use Alion Herbicide on soils with at least 10% organic matter. This herbicide is approved for use on soils with greater organic matter content than 10%.

Generally, the recommended Alion Herbicide application rate for an acre is 6.8 gallons of Alion Herbicide per acre. However, you must use a higher rate if you are spraying in areas with a high density of emergent weeds. The product must be applied with care as it can cause localized crop damage. It is also a good idea to apply Alion Herbicide in a banded pattern under a vineyard since this application requires less water per square foot than a traditional spray.

Alion Herbicide can be mixed with the most common pesticides and applied to the soil. However, the product does not have broad-spectrum activity and is most effective when applied to the soil prior to weed seed germination. This herbicide does not have a residual effect on weeds that have already emerged, so the soil should be moist before Alion Herbicide is applied. If you do apply Alion Herbicide, make sure to use a foliar active herbicide if you want to get the desired results.


Alion Herbicide is an effective preemergence weed control product for a range of farming applications. It provides preemergence control on farmstead building foundations, non-paved farm roads, ungrazed fences and shelter belts, cropland, and a host of other agricultural areas. For more information about Alion Herbicide’s compatibility with other products, read on. For best results, test Alion Herbicide in a small container. Mix the ingredients in the same ratio and order and observe for five to fifteen minutes. If the mixture is not compatible, do not apply it to the target crop.

Clean the sprayer well before and after using Alion Herbicide. The residues left on the equipment can be harmful to the crop. To ensure consistent coverage, clean the sprayer before residues set in. Use medium-sized droplets when spraying Alion Herbicide. Make sure to wear proper PPE while cleaning the sprayer. Once the sprayer is clean, drain off any remaining spray solution and clean with a commercial tank cleaner. If possible, rotate the nozzle to remove any product that has settled on the side of the tank.

Alion Herbicide is suitable for both new and established citrus, stone fruit, and tree nut crops. It is also compatible with established pome and stone fruit crops. A unique cellulose-biosynthesis inhibitor makes Alion Herbicide an ideal choice for pre-emergence weed control. Use a minimum of 10 gallons per acre for optimum results. In addition to its broad spectrum herbicide properties, Alion Herbicide can be applied as a banded treatment under vineyards. Banded applications require proportionately less water.

Depending on your application method, Alion Herbicide is most effective in citrus crops where the soil has settled. It is also ideal for citrus trees that have been established for at least one year. It can also be used in conjunction with contact herbicide Rely 280. This combination provides an initial burndown of emerging weeds and extended residual control. This combination increases resource efficiency and makes weed control simpler and easier.

Compatibility with other pesticides

Choosing the correct pesticide is essential to achieving the desired results. Compatibility is crucial when using two or more pesticides on the same crop. When mixing pesticides, make sure to conduct jar tests to determine compatibility. If compatibility isn’t achieved, tank mixing can be a mistake that can cost you money, time, and ruined equipment. Read the label carefully and follow its application instructions for the best results. Make sure to consider any special use restrictions or environmental conditions and drift warnings, which may apply to one or both of the two.

The fungi that are often affected by insecticides are also susceptible to the same fungi. Several insecticides are compatible with entomopathogenic fungi, but the specific interactions are not known. Compatibility may be affected by formulation components such as emulsifiers. These formulation ingredients may cause an antagonistic effect in fungi. In addition to understanding the compatibility of two or more pesticides, the type of pesticide used may also influence the level of compatibility.

Compatibility with low vigor crops

Alion Herbicide is not recommended for use on citrus or other low-vigor crops. Citrus trees are sensitive to herbicides and can suffer crop injury if treated too frequently. Low-vigor crops may also have had previous pesticide applications, been exposed to salt or other substances that may reduce nutrient availability, or suffering from disease or insect damage. Citrus trees can be safely treated when they are in the normal growth phase and are at least a month old. To prevent spray damage, citrus trees must be covered with nonporous wraps. If the citrus trees are in pots, the trunks must be covered.

The soil surface where Alion Herbicide is applied must be free from cracks and open channels. The residue from the herbicide may reach the roots of the crop and damage it. Those who are planting or transplanting plants should also fill any depressions or holes in the soil. This herbicide is more prone to crop injury on stressed crops. Hence, it is imperative to use the proper PPE while cleaning the sprayer.

Alion Herbicide is compatible with many low-vigor crops, including citrus, pome and stone fruit, tree nuts, and grape vineyards. The application of Alion Herbicide must be completed at least 6 inches before the crops are planted. During this time, irrigation should be supplemented to ensure adequate coverage. However, Alion Herbicide is not compatible with weeds that emerge from the soil, requiring a tank mix to control them.

Alion Herbicide is recommended for use in tank mixtures with other products such as pesticides and additives. However, compatibility must be verified before mixing. A small container of Alion Herbicide should be mixed with 0.5 to one quart of water and agitated thoroughly to ensure even coverage. If there is physical incompatibility, a sign will appear at five to fifteen minutes after mixing. If the mixture is compatible, use it safely.

New longer-lasting Alion herbicide provides a unique solution for pre-emergence control of a broad range of grass and broadleaf weeds, including ALS-, ACCase-, triazine- and glyphosate-resistant species. Alion is available for use in established citrus, pome and stone fruit, and tree nut crops, including pistachio. The unique chemistry in Alion features a cellulose-biosynthesis inhibitor as its active ingredient. 

 Easy-to-use, Alion features a low use rate and can be applied up to 14 days before harvest (7 days for citrus) with results lasting over six months. When applied with a contact herbicide such as Rely 280, the mixture provides initial burndown of emerged weeds and extended residual control. Producers will also benefit from clean orchards and groves and improved resource efficiency. With unsurpassed crop safety, Alion simplifies weed control, allowing producers to turn their attention to what really counts – profits.

Prices of Alion Herbicide

Alion Herbicide is a powerful, broad-spectrum herbicide that’s designed to kill weeds and grasses in agricultural fields, as well as non-crop areas such as roadsides, ditch banks and fence lines. The active ingredient in Alion Herbicide is Indaziflam.

The price of Alion Herbicide varies depending on where you buy it. The price ranges from $238.95 to $672.91 per gallon. If you are looking for an affordable broad-spectrum herbicide, then Alion Herbicide might be right for you.

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