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Leaf galls and wasps The strange growths on the back of the leaves, such as those picture below, are known as leaf galls. Galls are formed when a wasp lays an egg. Along with the egg(s), the wasp secrets a…
In the summertime when the weather is hot… Mungo Jerry, “In the SummerTime” I was 16 when Mungo Jerry’s song, “In the Summertime” came out in 1970. What a great summer. I drove a combine that summer harvesting wheat from…
This spring (2020) has seen almost every Live Oak in Denton County infected with a disease call Oak Anthracnose. This sound like a terrible disease, but it is really just a nuisance for the trees. This is a fungal disease…
The Live oak is not native to Denton County, but thrives exceptionally well in our area. It is native across the southern gulf coastal plain over into central Texas. There is a variety (or a separate species, depending on the…
Sometimes developers, the city, and the homeowners get it right. This park is just south of 1171 on Regency Park Court. The “Lone Tree” is a gorgeous Post oak that was spared and became the focal point of this park.…
What are those little brown humps that cover my oak twigs? These are lecanium scale insects. The lecanium scale can be debilitating to the host plant, rarely killing it. The insect draws sap from the tree, thus reducing the tree’s…
As we get into August this year, the post oaks in Denton County are showing a lot of white on their leaves. This is not a fungus or serious disease but is “wool” that is produced by a small sucking…
Newly emerging leaves on a red oak in the spring with male flowers This spring season has brought with it an abundance of oak flowers or “tassels.” I have noticed it on all of the oak species: live oak, post…