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Anthracnose Treatment for Trees

AnthracnoseMaple

Anthracnose on a Maple leaf - Image from hflp.dstate.edu

Anthracnose (leaf blight) is a fungus that winters on twig tissue on the tree. In the spring, spores are transported to new buds and shoots. The disease is enhanced by cool, wet conditions. Infected leaves develop tan to reddish brown lesions that extend along the veins of the leaf (see image).  Anthracnose susceptible trees include oak, ash, maple, elm, hickory, walnut, birch, linden, sycamore, dogwood. Sycamore white oak and dogwood are particularly susceptible to anthracnose.

Anthracnose Symptoms

Tan to reddish brown lesions that extend along the veins and edges of the leaf, considerable defoliation, sometimes with complete leaf loss.

Tree Injection with PHOSPHO-jet or Alamo

phosphojet

PHOSPHO-jet is a systemic fungicide specially formulated for tree injection.

Arborjet recommends a tree injection of either PHOSPHO-jet or Alamo.   Injecting fugicides directly into trees is fast, effective, and safer for the environment.  PHOSPHO-jet deteriorates fungal cells while eliciting a plant health response from the tree. PHOSPHO-jet will promote stronger, healthier tree cells, promote root development, and incerase helath to trigger the tree’s natural defense mechanisms.  Alamo will have more direct and aggressive activity against the fungus itself and is recommended if infection is chronic or particularly severe. In the Spring, the recommended delivery system is the Tree I.V. but in the Fall the QUIK-jet can be used. PHOSPHO-jet can be applied in undiluted form.

When To Treat

Arborjet Tree I.V.

Arborjet's Tree I.V device injects systemic products directly into the vascular system of trees.

Generally, the best seasons for tree injection are fall and spring. The environmental conditions that favor uptake are moderate temperatures, adequate soil moisture, and high humidity. Soil temperature should be above 40 degrees. Tree health will influence uptake time.

Treatment Results

Trees may still defoliate despite the treatment with either of these products. However, we recommend treatments that enhance tree health. Our research is demonstrating that infected trees micro-infused with PHOSPHO-jet are more resistant to infection in the first place and recover from infection more quickly.

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2 Comments

  1. Charles Alberga
    Posted January 7, 2012 at 4:09 pm | Permalink

    I live in the cayman islands and have several mango ,avocado, breadfruit, sweet/sour sop, naseberry, and June plum, trees. I would like to acquire a tree injection system and some of the Phospho-jet fungicide.

    I need to find a dealler in the Miami Florida that is knowledgable and can sell me what I need.

  2. Arborjet
    Posted January 19, 2012 at 7:13 pm | Permalink

    Sounds like some important trees you want to protect. You can find a distributor using our zipcode search. PHOSPHO-jet is not registered in Cayman Islands but these distributors may have a solution.

    Two distributors in Miami:

    John Deere Landscapes
    10605 SW 186th St
    Miami, FL 33157 (305) 238-6787

    John Deere Landscapes
    7881-91 NW 62nd St
    Miami, FL 33166 (305) 406-2814

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