Mauget ArborFos - Injectable Phosphite Fungicide Capsules (Beech Leaf Disease Treatment)

Arborfos is a phosphite formulated fungicide that inhibits fungal growth through stimulation of the plant’s own natural defense systems. Research indicates that Arborfos may also elicit a type of systemic acquired resistance response. Although it imparts no actual phosphorous nutrition, Arborfos treated trees tend to develop healthier leaves, roots and stems as it reduces disease pressure. Arborfos is registered for ornamental, forest and certain crop trees to manage many diseases including root diseases.

Key Benefits

Promotes natural plant defense responses
Supports drought and stress tolerance
Environmentally friendly
Minimal exposure risk application method

Available Sizes

Bottles

1 Liter
Flat or Round Bottom
Single or Case of 4

Capsules

5 mL
10 mL
24 Pack or Case of 288

Capsule Size Guide

5 mL Capsules – 2 to 10 inches DBH
10 mL Capsules – 10 inches DBH and above

Capsule Spacing

Install 1 capsule every 4–6 inches around the trunk circumference.

Quick estimate:
Capsules Needed ≈ DBH ÷ 2

Example: A 20-inch DBH tree typically requires approximately 10 capsules.

Note: Capsule dosages, also known as micro-injectors, are calculated by measuring the tree diameter at breast height, or DBH, in inches, then dividing that number by two to determine the total number of capsules.

Targets

Beech Leaf Disease, Anthracnose, Apple Scab, Armilleria Root Rot, Bacterial Blight, Bacterial Leaf Scorch, Crab Apple Scab, Fire Blight, Phytophthora Cactorum, Phytophthora Cinnamomi, Phytopthora Palmivora, Phytopthora Ramora, Phytopthora Spp

Capsule Size

5mL

In Stock

$116.00

7.5mL

In Stock

$1,077.00

Quantity

1 Pack (24 Capsules)

In Stock

$116.00

Full Case (288 Capsules)

In Stock

$1,077.00

Product variants

$116.00

$116.00 USD

Sale Sold out

Shipping calculated at checkout.

Quantity

Call to Order

Secure Payment Processing
30 Days Return Policy
In Operation Since 1977
Owned/Operated by ISA Certified Arborists

View full details

Additional Information

Documentation

Let customers speak for us

from 118 reviews

Trying stop ash borer

After watching all my ash trees die on our farmstead l wanted to help the trees at our lake home. Right now the older trees are showing signs of ash borer. I will treat the trees that are smaller and select some. Some will get dropped the bark on 3 are showing signs of cracks. Thank god we have other trees on our lots.

Joseph L Kral

ArborJet TREE-age G4

06/04/2026

ArborSystems Cleaning Solution

David Hastreiter

ArborSystems Cleaning Solution

06/02/2026

Owner

Deliver on time

Mike Bonales

ArborSystems Water

05/23/2026

Cal Mag

Great Job

Shawn Woods

7-0-3 Cal Mag Max

05/20/2026

15-8-4 ArborCare

Great product for the price

Dustin Dalton

15-8-4 ArborCare

05/13/2026

Mauget Inject-A-Min Iron/Zinc - Injectable Tree Nutrient/Fertilizer Capsules

Dustin Chalfant

Mauget Inject-A-Min Iron/Zinc - Injectable Tree Nutrient/Fertilizer Capsules

05/12/2026

Mauget Imicide Capsels

Tried these for the 1st time on my Pecan trees. I have four and they are all very close to the lake so spraying was out of the question. It was quite easy to do, I watched a few videos and used Ai to help me along. We will find out as the year progresses and the nuts start falling. From everything I read this should be the answer to keep bug infestation down.

Robert Belward

Mauget Imicide - Injectable 10% Imidacloprid Insecticide Capsules (CRB, EAB, HWA & More)

05/04/2026

Fast Shipping

Thank you for getting our feet to us fast and in good shape! Easy to work with as well.

Brandon W Pankey

15-8-4 ArborCare

04/29/2026

Talk about Service!!! 5 Stars is NOT enough

Talk about Service!!! 5 Stars is NOT enough.

Daamon Ball Lead Arborist/ Commercial Applicator R&B Trees

Tree Injection Products Co.

04/24/2026

Excellent product!

Fast shipping and excellent product, does exactly what we want it to, fortifing trees and shrubs.

Ian Craveiro

20-0-10 Water Soluble Tree & Shrub Fertilizer

04/20/2026

Reliant Fungicide

Todd Caswell

Reliant Fungicide

04/16/2026

Eric T. @ TIPCO is the reason my business went to TIPCO

I bought Abacide 2 for a bark beetle infestation for my Italian Cypress tree's. I only just today applied the insecticide today. So, I can't yet give a review on how well the insecticide has worked at helping to save the trees that show signs of beetles or the trees I am trying to protect from them. What I can review is Eric T. at Tipco. He has been a treasure trove of information. He replies same day, if not within the hour. I must have emailed him at least five or six times. I emailed and called other places that offered the same products and services and could not get any help or advice. I think one place replied about 10 days later with minimal information. Eric is the man. If you have any questions or concerns he will take care of you. Thanks Eric! Oh, and shipping only took three days from East coast to West and was free. Shipping Dot Yeah!

Charles Cox

Mauget Abacide 2 - Injectable Abamectin Insecticide Capsules

04/15/2026

Mauget Imisol Injection Combo

Even though it's only been a short time since the initial treatment, I have noticed a stark positive difference in the color and texture of the bark & leaves on all the trees.
I think the use of the Imisol combo product has been a great benefit to all of my trees.

Carl Collins

Mauget Imisol - Injectable Combo Fungicide/Insecticide Capsules - Imidacloprid & Fungisol

04/09/2026

Bifen I/T 7.9%

Juan Reyes

Bifen I/T 7.9%

04/05/2026

It works!

This is my second time using Snipper. For me, it eliminates about 80-85% of the sweet gum balls.

Scott A Highland

Tree Tech Snipper

04/03/2026

Item added to your cart

Mauget ArborFos - Injectable Phosphite Fungicide Capsules (Beech Leaf Disease Treatment)