I don't have an answer to that backed by hard data. I do have a fear of it. I'm seeing a lot fo tree removals in the Knoxville and Baltimore areas due to th...

Anthracnose Twig Blight hitting Sycamores and Plane Trees hard - see why below Typically causes minor damage to trees with four stages 1. Twig blight eviden...

OAK Anthracnose (fungal) and OAK bacterial leaf scorch – Key POINTS! Anthracnose is a fungal pathogen o Typical in wet cool weather = Springtime disease o ...

Many people are unaware that the new chestnut hybrids can be attacked by the same fungus that took out our native chestnuts. They are hybrid after all and t...

Below is a link to a GoFundMe campaign for SEEED Knox. Their information is in the campaign description including their website link. If you'd rather purch...

Below is not a picture of a maple but that's becuase changes in soil temperatuers in the late winter/early spring are impacting sap flow in all deciduous tre...

April – June Plant Health Care – the right approach, at the right time, in the right amount! 1. Lace bugs that hit azaleas especially hard – they can produc...

Hi all - running out of time this time of year for the blog. Which is great because that means I'm out and about learning, teaching, and taking care of plan...

First, this is going to be a three part series (might have to give Soils their own page - they deserve it); starting with biochar as an exploratory landscape...

In the Knoxville and surrounding areas, we rarely must deal with snow or ice and certainly not large amounts. That's great for protecting tree stems and bran...

There's a fungal canker I'm seeing in Japanese maples located in highly alkaline clay soils which makes sense. They prefer natural, loamy soils. Give me a ...

...not caused by the west-coast, sudden-oak-death (SOD) pathogen - that's what I am seeing in east TN, this spring and summer. I've seen it primarily on red...

Girdling roots are as bad for a plant as girdled stems. You know the girdled stem - someone forgets to loosen or untie that rope around the limb and the rop...

Hello all, I am creating a series of plant lists to help make choices about which plants you are putting in your landscapes. Lists will include shade and dr...

Several recent soil analyses around Knoxville have shown trace amounts of Phosphorous (P) and Potassium (K). Phosphorous is critical for a variety of cell a...

Arbor vitae's (or Arborvitae) Latin name is Thuja occidentaliswhich is important because the species has its own, short but important, list of pests. Leyland...

Oak leaf hydrangeas and a plethora of other gorgeous native shrubs, perennials, annuals, grasses, and ferns are listed with UTK extension and local master ga...

I love insects, almost all of them and my goal is to save insect biodiversity loss (which has been substantial) from overuse and misuse of insecticides. But...

Note - this is primarily for deciduous trees! For more detailed information and illustrations please visit the following: arborday.org, any university Exten...