by David Vaughan | Dec 18, 2018 | Articles
Recommended small to medium sized trees, native or perform like nativeKidneywood (Eysenhardtia orthocarpa) 10 feetMexican Buckeye (Ungnadia speciosa) 30 feetEvergreen Sumac (Rhus virens) 12 feetRusty Blackhaw (Viburnum rufidulum) 20 feetCarolina Buckthorn (Frangula...
by David Vaughan | Aug 1, 2015 | Articles
The most likely cause of tree problems in the urban setting in our area is buried root collars. I seldom have a day in which I do not diagnose a root collar disorder. In my experience, it is by far the most common cause of tree decline and death and is responsible for...
by dpylant | Feb 3, 2022 | Articles
A YouTube video of the lecture for the Fredericksburg Native Plant Society of Texas, January, 2022. Sustainable Soil
by David Vaughan | Aug 1, 2015 | Articles
Purpose: To provide air, water and fertilizing ports in the root area of trees that have paving over their root zones. Their main value is to vent toxic gases to the surface and to allow oxygen to enter the soil under the paving. Their secondary value is for water and...
by David Vaughan | Jul 18, 2019 | Articles
Shella McBride and David Appel in their article on Hypoxylon Canker for AgriLife Extension state that once Hypoxylon Canker is evident, it is usually too late to save the tree. The Arborlogical Services web site says that it is extremely rare to see Hypoxylon Canker...
by David Vaughan | Jan 28, 2019 | Articles
At the 2015 ITC in Orlando Florida the last talk of the conference was by Dr. Glynn Percival on Systemically Induced Resistance (SIR). He reported on his research using the fungus Trichoderma to successfully treat Apple Scab and Armillaria spp. in Great Britain. At...
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