Managing Tree Root Diseases

Two common causes of root disease in California are species of the fungus Armillaria and species of Phytophthora, which are fungus-like organisms. There are many differences between the two pathogens, but effective management of both involves creating growing conditions that favor plant vigor and that inhibit the pathogen.

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Posted in Pests and Diseases, Tree Advice

Suppressing Oak Wilt

Caused by a fungus, Ceratocystis fagacearum, oak wilt invades the vascular system of trees. The disease can cause rapid decline and even death of infected plants. Susceptibility to this disease varies among oak species; members of the red oak group decline and die quickly following infection, while white oaks tend to be resistant and recover. Live oaks are intermediate in susceptibility to oak wilt and infected trees may recover with early detection and treatment.

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Posted in Pests and Diseases, Tree Advice

Lichen and Trees

So the trunk of your tree or shrub is covered in crusty green stuff – don’t panic! It’s unlikely that this ‘green stuff’ is harming the tree. What you are observing is the growth of lichen on the bark.

Lichens are non-parasitic organisms that consist of a partnership between a fungus and a green alga or cyanobacterium. The fungus collects water and minerals from the air and substrate and the alga/bacterium contributes photosynthates and other nutrients. The lichen itself grows on the surface of the organism or object (trees, rocks, dead wood, grave stones, etc.) without causing any harm or negative impact to its host.

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Posted in Environmental Issues, Pests and Diseases, Tree Advice

Look Out for Leaf Curl and Leaf Blister

Leaf curl and leaf blister are a group of diseases caused by the fungus Taphrina. Taphrina caerulescens is the causal agent of oak leaf blister, and Taphrina deformans is the causal agent of peach leaf curl.

These diseases are common in spring as the pathogens infect newly growing leaves, flower parts and fruits. Only undifferentiated (still growing) tissues are susceptible. Therefore, most infections occur during or just after bud break. The disease is often more severe when weather is cool and wet. Once the plant tissue has matured, fungal spores that may be present throughout the growing season are not able to infect the host.

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Posted in Environmental Issues, Pests and Diseases, Tree Advice

Arbor Day and Earth Day 2018

Arbor Day and Earth Day are holidays filled with meaning for a tree company. Arbor Day is dedicated to planting trees and celebrates all the benefits those trees bring to our lives while Earth Day commemorates the many ways we can protect and preserve our environment. Here at Bartlett Tree Experts, those ideals are part of our everyday lives. We work hard to be stewards for our urban forests, caring for trees at homes, businesses and in our communities. We are also committed to using environmentally sustainable products and equipment to reduce our carbon footprint.

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Posted in Volunteering

Being a leader in the tree care industry means continually focusing on learning and innovation. Bartlett’s Tree Topics blog follows in that tradition by offering a place to receive advice on trees, tree pests, tree preservation, and more.

Make an appointment with your local Arborist Representative to discover why Bartlett is the leader in professional tree care.