• Low Volume Macro Infusion

Alamo® is a tree injected systemic propiconazole fungicide used for the management of oak wilt and laurel wilt disease. Alamo® should only be used as a prevention measure for laurel wilt on red bay or oak wilt on oaks in the red oak family. However, it can be used as a prevention or therapeutic measure for oak wilt on oaks in the white oak or live oak family.

Alamo® treats 47 inches of diameter at the high rate and 94 inches at the low rate.

See the Alamo Product Guide for detailed dosage information.

Application Type(s)

Low Volume Macro Infusion

Active Ingredient



Oak Wilt: Application for red oaks and white oaks can begin after full leaf development in the spring and can be made throughout the growing season until just prior to the onset of fall coloration. Application for live oaks can be made throughout the year, except during the leaf transition period in February and March.

Laurel Wilt: Application can be made throughout the year as long as the trees are full leaf.

Note: This product cannot be sold in the following states: AK, CA, PR. Pesticide Applicators License Required in New York, not available in Canada. We apologize for any inconvenience this may cause.

Alamo is available in the following sizes/variations.


Quart (1202)
Price: $85.41

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Not all products are available for sale in all states.  Make sure that any product you intend to purchase is registered for use in your state, and that you have all of the required licenses to apply the product purchased.  Any recommendations made by the tree geek website or its employees are based on limited knowledge of your area and are for informational purposes only.  Always seek advice from a local professional if you are not sure of your tree or pest identity.

Oak Wilt Dosage Rate

Red Oak Group:

• Treat with 10 mL -20 mL of Alamo®/inch of DBH. Dilute each 10 mL of Alamo® in up to one liter of water. The current label allows up to 20 mL Alamo®/inch of DBH for trees growing in areas of heavy disease pressure.

White Oak Group:

• Treat with 10 mL of Alamo®/inch of DBH for trees <25 inches. For trees greater than 25 inches use 20 mL of Alamo®/inch of DBH. Dilute each 10 mL of Alamo® in up to one liter of water.

Laurel Wilt Dosage Rate

Treat with 20 mL of Alamo®/inch of DBH. Dilute each 10 mL of Alamo® in up to 300mL of water.

Total DBH: 0 inches.
Estimated minimum total product needed (low rate): 0 ml
Estimated maximum total product needed (high rate): 0 ml

Based on the size of your trees, we estimated you will need ONE of the following options:

1 @ Quart

What Customers Are Saying...

Average Customer Rating for Alamo

32 Responses to Alamo

    • The Tree Geek says:

      We are certainly available to deliver and help in your area. Give us a call and we’ll see how we can help.

    • Jen says:

      Our current business model is to handle customer questions and orders online or on the phone. If you would like to have a pro look at your tree we can get you in contact with a recommendation.

  1. Bob Kruse says:

    I live in southern Wisconsin and have lost 3-4 Oaks to the oak wilt disease. These are 100-125 year old oaks. I have had a local arborist treat my trees with a pipe looking device with a ‘fungicide’, However the trees treated have continued to die off. I asume that type of treatment is less effective than the pressurized infusion process. In watching the videw it appears that the process is fairly simple enough to allow a homeowner with reasonable shop skills to perform the infusion process. I have a new tree that is infected and the leaves are starting to drop and it is the middle of June. Will the infusion still be effective? The tree is 24 inches in diameter–how much chemical is needed.? and how much does the kit cost.
    Thank you

    • Bob,

      Are these red oaks? If so once symptoms are visible there isn’t much you can do. If they are in the white family (rounded tips) therapeutic treatment is an option. The macro infusion process, when done correctly is very effective in protecting trees from oak wilt. It is also pretty easy to apply. For preventative red oak treatments we us 20mL of Alamo for each inch of diameter, for white oak tree we use 10mL of Alamo for each inch of diameter. If you have any other questions please feel free to give us a call…we love helping people deal with oak wilt. The number is 888-637-6694, we are here to help!

      • Bob says:

        I find it funny that people say “there isn’t much you can do once Red Oaks have Oak Wilt”. I have saved hundreds of Red Oak after they had Oak Wilt. Just as most say if Live Oaks don’t take the Propiconazole within 24-48 hours there isn’t much hope. I have done my own research on this and I have left tanks on for 5 days and on the 5th day it took. This was over 5years ago and the tree is still doing fine.

        • Chris says:

          Then it is doubtful that the trees actually had oak wilt disease. Did you have a lab verify your “diagnosis”. Are you sure they were red oak trees? It is common knowledge amongst arborists that red oaks have very slim to no chance of surviving once infected with oak wilt disease. If you have “saved” hundreds then you could be making a lot of money teaching the rest of the tree care world how to do what they can’t do.

  2. William Nichols says:

    I have just had a red oak on my property cut down and removed because of oak wilt disease appearing on part of the tree. I have another oak tree about 45 feet from the tree just removed. This is a large tree that I value and want to protect it from this disease. I would appreciate any help or information you could send me. I have recently contacted Davie tree service and they advise injection with a ‘fungicide’ and gave me an estimate of $988.00 for one injection to be done for 3 years.

  3. Scott black says:

    Hi, hope not too late. Diseased laurel oak in Tampa, FL. Fungus (light brown/tan) overtaking, losing tree bark. Several/many limbs have fungus. Leaves turning brown and limbs dying. Limbs coming down more than usual. Canopy sparse, usually full. Would hate to lose tree, recommendations? Thanks

    • Scott,

      What percent of the tree is symptomatic? If it is more than 25%, then there isn’t much that can be done. If it is less than 25% an application of Alamo using the Macro Infusion system can be effective. It is a pretty easy process, but not one you want to try if the trees isn’t salvageable. One thing to consider is other susceptible trees in your yard. These can be protected before the symptoms appear with great success. Please feel free to contact us at with any further questions!

  4. Scott Hayes says:

    I have many Pacific Madrone trees with leave spot disease, caused by fungi. I would like to try Alamo, but this species is not listed. Any advice?
    Scott Hayes
    Forest Grove, Oregon

  5. Terry Veldhouse says:

    My mother owns a lake home on Lake Ponderosa near Montezuma, Iowa. She has several large oak trees on the property and they have been gradually dying off, as have oaks on other nearby lots. I don’t know what type of oak it is. I know it is not a Pin Oak. The leaves are shaped like what I would know as a burr oak.

    Is there a way to know for sure if the oaks are dying from oak wilt? What are the chances of saving them. They don’t look very good and have trunks abourt 24 – 30″ in diameter.

    • The Tree Geek says:

      Well, you’re on the right page if you’re concerned about saving your Oaks from Oak Wilt! Oak wilt is pretty distinctive, you’ll see a general browning of the leaves (they look wilted) starting in one branch on the tree, then it will spread out from there. The big distinguishing factor between Oak Wilt and Oak Anthracnose (which is sometimes mistaken for Oak Wilt) is that Oak Wilt leaves remain flat and Anthracnose leaves will curl around brown tissue. In Oak Wilt, the leaves will generally fall as half green and half brown, which is another good indicator. You’re lucky that they are Bur or White Oaks, these are typically the easiest to save. We recommend a macro infusion using our manual pump and Alamo. Feel free to cal us with any questions as well (888-637-6694), and make sure to get more info at our Oak Wilt page!

  6. ken breaux says:

    how fast do you ship product? If entire tree showing signs of oak wilt (brown leaf) should tree come down asap? treat stump to prevent spread? Thanks for any help. Ken

    • The Tree Geek says:

      The answer depends on the type of Oak. Red Oaks should be removed immediately, treatment isn’t effective. White Oaks can be treated. We ship the next day using UPS, the package typically arrives between 5 and 7 business days later.

  7. Lucio says:

    I wonder what will happen if I use Alamo for oak wilt disease on Quercus mongolica and if I use it as a tree injection to trunk. would it be effective, too?

    • The Tree Geek says:

      Hi Lucio, thanks for the question.

      It is not entirely known what would happen if you injected Q. mongolica. This species has not been used frequently enough in the landscape to warrant research in this area. All oaks are susceptible to oak wilt in some capacity though, so it is safe to assume Q. mongolica is no exception. It looks as if this species belongs to the white oak group, so the 10 ml/inch rate would be best. The tree would most likely respond in a similar fashion to other white oak group oaks.

  8. Karen Kaighin says:

    Our red oak tree was treated with Alamo fungicide. Immediately after treatment all the leaves turned brown and fell off. (It was July and it wasn’t a dry spell.) Does this mean our tree has oak wilt?

    • The Tree Geek says:

      It’s difficult to say because of the speed with which red oaks can die from Oak Wilt. If it stayed leafless, the tree probably died from Oak Wilt. Red oaks are difficult to treat with Alamo because the fungus kills them so fast, in some cases 2-3 weeks. If the tree leafed back out, then it probably just experienced a phytotoxic effect, which is a fancy way of saying that the chemical caused the tree to drop all of its leaves prematurely.

    • The Tree Geek says:

      Oak wilt in Live Oaks should be treated on a two year cycle, for two cycles to get an infection under control.

  9. joe says:

    For prevention of bur oak blight do you treat on a 2 year cycle for 2 cycles as you state in your May 13, 2015 post?

    • The Tree Geek says:

      Usually a two treatment cycles is enough to get Bur Oak Blight under control. Bur Oak Blight is still a relatively new disease to Arborists, so we’re still learning how to most effectively deal with it. Our experience shows that 2 treatment cycles works well.

    • The Tree Geek says:

      For both Bur Oak Blight and Oak Wilt, I’d recommend retreatment every two years for two treatment cycles, then monitoring for disease pressure in the area, and beginning retreatment if the disease becomes prevalent again.

  10. Wylie Basham says:

    Because of nearby Oak Wilt we had an arborist treat the trees surrounding our house with Alamo. It has been almost a year now. It looks like we have lost two of those because they have lost most of their leaves and a third is turning.

    Do you recommend retreating? Does that need to be after two years?

  11. Paul says:

    I have recently treated a Sand Water Oak, which I understand to be in the white oak family.
    The tree had minimal oak wilt symptoms prior to treating, as in maybe 3-5% wilt effect on the trees.

    How quickly will I see results, if I see them at all? Is it worth treating a tree(same type) where all the foliage is browned?

    I have purchased twice from you guys and am thankful for the prompt service and delivery! Hope to see good results on my trees!


    • The Tree Geek says:

      Hi Paul,

      You will most likely notice an improvement in symptoms when the tree leafs out next growing season. As for the completely brown tree, I don’t think treatment would be very effective. Generally, we see the best results when treating white oaks with 30% or less canopy loss. Your chances of successfully treating start to drop as canopy loss increases.

  12. Anna Marie Lindley says:

    We are experiencing Oak Wilt on our farm in Comanche County, Texas. Trees are mature Post Oak – sandy soil. Where is the closest Alamo distributor?

    • The Tree Geek says:

      Hi Anna,

      You can order through us online if you would like, but I am unaware of any distributors for home owners in the area.

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