Oak tree care in Houston
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The average white oak has 7 to 9 lobes on the leaf and has a rounded lobe on the tip of the leaf.
Red oaks usually have 5 to nine lobes per leaf.
A northern pin oak has even fewer lobes on the leaf.Some of the
leaves on the red oak will have points on the end of the lobe.
The live oak and Holly oak are both evergreen oaks.and have smaller leaves.
Deciduous oaks tree in Houston normally have much larger leaves.
Roots Growing Above Soil Surface Pin Oak Trees are often found with some of their roots growing above the surface of the soil. This is because they are growing in compacted soils.
The Northern red oak tree grows fast and will survive in a variety of soil conditions; however, it prefers to be near stream or river beds.
Anthracnose is not life-threatening to large, established trees but can often be treated with success. Swellings and growths on twigs and leaves Gall Insects - Twigs, leaves, and even the acorns of Oaks are commonly disfigured by odd shaped growths called galls. These buttons, cones, bullets, balls, and blobs are caused by minute gall wasps or flies which lay their eggs in the plant tissue. When tiny grubs hatch out, they secrete powerful plant growth substances that force the tree to form the gall around the developing insect, which lives on nutrients from the abnormal growth.
Oak Mites - Oak mites are about 1/50 inch long, barely visible to the unaided eye. Resembling tiny spiders, they have four pairs of legs, piercing-sucking mouth parts, and very compact bodies. They may be yellow, green, red or brown. If the top surfaces of the lower leaves on the Oak tree are stippled with small yellow dots or red spots, it is likely that mites are the cause.
When they get spider mites, leaves turn bronze, wilt, drop Oak Wilt, A Fungal Disease - Most Oaks are susceptible to this systemic fungal disease, although members of the Red Oak group are hit harder than White Oaks.