Vegetation and Environment in Adjacent Post Oak (Quercus stellata) Flatwoods and Barrens in Indiana

1989 ◽  
Vol 122 (2) ◽  
pp. 329 ◽  
Author(s):  
Rebecca W. Dolan ◽  
Eric S. Menges
Keyword(s):  
Post Oak ◽  
Quercus Stellata

Hexazinone and Other Herbicides on Texas Woody Plants

Weed Science ◽  
1980 ◽  
Vol 28 (3) ◽  
pp. 358-362 ◽  
Author(s):  
R. E. Meyer ◽  
R. W. Bovey
Keyword(s):  
Woody Plants ◽  
Prosopis Juliflora ◽  
Gleditsia Triacanthos ◽  
Acacia Farnesiana ◽  
Quercus Virginiana ◽  
Live Oak ◽  
Post Oak ◽  
Ilex Vomitoria ◽  
Quercus Stellata ◽  
Honey Mesquite

Hexazinone [3-cyclohexyl-6-(dimethylamino)-1-methyl-1,3,5-triazine-2,4(1H,3H)-dione] was applied to honeylocust (Gleditsia triacanthosL.), honey mesquite [Prosopis juliflora(Swartz) DC. var.glandulosa(Torr.) Cockerell], huisache [Acacia farnesiana(L.) Willd.], live oak (Quercus virginianaMill.), Macartney rose (Rosa bracteataWendl.), post oak (Quercus stellataWangenh.), saw greenbrier (Smilax bona-noxL.), whitebrush (Aloysia lycioidesCham.), and yaupon (Ilex vomitoriaAit.). Bromacil (5-bromo-3-sec-butyl-6-methyluracil) and tebuthiuron {N-[5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]-N,N′-dimethylurea} were used for comparison in some experiments. Hexazinone was required at the following rates to kill at least 75% of the following species: 1.1 kg/ha for live oak, 2.2 kg/ha for post oak, 4.5 kg/ha for huisache (at Bryan, Texas) and whitebrush, and 9 kg/ha for honeylocust. Hexazinone was ineffective at 9 kg/ha for control of honey mesquite, huisache (at Washington, Texas), Macartney rose, saw greenbrier, and yaupon. Tebuthiuron at 1.1 kg/ha killed 80% of the live oak, and as a subsurface spray at 4.5 kg/ha, killed huisache (at Washington, Texas). Bromacil was effective on huisache at 9 kg/ha.

Bromacil and Picloram under Southern Upland Hardwoods

Weed Science ◽  
1973 ◽  
Vol 21 (1) ◽  
pp. 54-56 ◽  
Author(s):  
Fred A. Peevy
Keyword(s):  
Understory Plants ◽  
Post Oak ◽  
Quercus Stellata ◽  
Southern Upland

Bromacil (5-bromo-3-sec-butyl-6-methyluracil) was much more effective in killing post oak (Quercus stellata Wangenh.) and blackjack oak (Q. marilandica Muenchh.) trees than 4-amino-3,5,6-trichloropicolinic acid (picloram) when applied to soil at 5.6 and 11.2 kg/ha in spots, bands, or by broadcasting. When applied at 5.6 kg/ha in bands or broadcast, picloram effected better crown reduction than bromacil on mockernut hickory (Carya tomentosa Nutt). Differences between rates and methods of applying bromacil were small. While bromacil was superior on the prevalent overstory species, post oak and blackjack oak, picloram excelled on the most numerous understory plants.

Control of Oaks (Quercusspp.) and Associated Woody Species on Rangeland with Tebuthiuron

Weed Science ◽  
1981 ◽  
Vol 29 (3) ◽  
pp. 270-275 ◽  
Author(s):  
C. J. Scifres ◽  
J. W. Stuth ◽  
R. W. Bovey
Keyword(s):  
Woody Species ◽  
Juniperus Virginiana ◽  
Eastern Redcedar ◽  
The Third ◽  
Growing Seasons ◽  
Post Oak ◽  
Ilex Vomitoria ◽  
Ulmus Alata ◽  
Quercus Stellata ◽  
Water Oak

Aerial applications of 20% tebuthiuron {N-[5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]-N,N-dimethylurea} pellets at 2.2 kg/ha (ai) in the spring effectively controlled post oak (Quercus stellataWangenh.), blackjack oak (Q. marilandicaMuenchh.), water oak (Q. nigraL.), yaupon (Ilex vomitoriaAit.), winged elm (Ulmus alataMichx.), downy hawthorn (Crataegus mollisScheele), gum bumelia [Bumelia lanuginosa(Michx.) Pers.], and willow baccharis (Baccharis salicinaTorr. & Gray) in the Post Oak Savannah of Texas. Tree huckleberry (Vaccinium arboreumMarsh.), black hickory (Carya texanaBuckl.), honeylocust (Gleditsia triachanthosL.) and cedar elm (Ulmus crassifoliaNutt.) were partially controlled by 2.2 kg/ha of tebuthiuron. Canopies of buckbrush (Symphoricarpos orbiculatusMoench), southern dewberry (Rubus trivialisMichx.), American beautyberry (Callicarpa americanaL.), and persimmon (Diospyros virginianaL.) were reduced for about two growing seasons after which the woody species recovered. American beautyberry appeared to increase in abundance by the third growing season after control of the other woody species. Honey mesquite [Prosopis juliflora(Swartz) DC. var.glandulosa(Torr.) Cockerell], eastern redcedar (Juniperus virginianaL.), and Texas persimmon (Diospyros texanaScheele) were not controlled by tebuthiuron at 2.2 or 4.4 kg/ha, and saw greenbrier (Similax bona-noxL.) and peppervine [Ampelopsis arborea(L.) Koehne] apparently increased following application of tebuthiuron.

Radial growth responses of post oak (Quercus stellata) to climate variability and management in southeastern Oklahoma, USA

2021 ◽  
Author(s):  
Arjun Adhikari ◽  
Ronald E. Masters ◽  
Henry D. Adams ◽  
Rodney E. Will
Keyword(s):  
Climate Variability ◽  
Prescribed Fire ◽  
Radial Growth ◽  
Early Summer ◽  
Late Spring ◽  
Daily Temperature ◽  
Daily Minimum Temperature ◽  
Growth Responses ◽  
Post Oak ◽  
Quercus Stellata

We investigated radial growth of post oak (Quercus stellata) growing in a range of stand structures (forest to savanna) created in 1984 by different harvesting and thinning treatments followed by different prescribed fire intervals. We related ring width index (RWI) to monthly and seasonal climate variables and time since fire to assess impacts of climate variability and interactions with management on radial growth. RWI of all treatments was positively correlated to minimum daily temperature the previous September and precipitation late spring/early summer the current-year, and negatively correlated to maximum daily temperatures and drought index late spring/early summer. June weather was most strongly correlated in four of five treatments. While stand structure affected absolute diameter growth, RWI of savanna and forest stands responded similarly to climate variability, and low intensity prescribed fire did not influence RWI. On average, 100 mm reduction in June precipitation decreased RWI by 8%, 1oC increase in previous-year September daily minimum temperature increased RWI by 3.5%, and 1oC increase in June maximum daily temperature decreased RWI by 3.7%. Therefore, negative effects of drought and warmer spring/summer temperatures may be reduced by longer growing seasons under warmer climate scenarios. However, management did not appear to influence RWI.

scholarly journals Prescribed Burning Frequency Affects Post Oak and Blackjack Oak Regeneration

2011 ◽  
Vol 35 (4) ◽  
pp. 193-198 ◽  
Author(s):  
Ryan D. DeSantis ◽  
Stephen W. Hallgren
Keyword(s):  
Prescribed Burning ◽  
Production Capacity ◽  
Basal Area ◽  
Fire Frequency ◽  
Growing Seasons ◽  
South Central ◽  
Post Oak ◽  
Central United States ◽  
Quercus Marilandica ◽  
Quercus Stellata

Abstract We studied post oak (Quercus stellata Wangenh.) and blackjack oak (Quercus marilandica Münchh.) regeneration in xeric upland oak forests burned from 0 to 5.3 times per decade for 19 years. Post oak and blackjack oak represented 76 and 11% of the site basal area. All reproduction was by sprouting; there were no true seedlings. Compared with post oak, blackjack oak had a substantially higher density of clumps and sprouts relative to its basal area, suggesting that basal area was not a good indicator of sprout production capacity across species. The number of sprouts per clump declined with time since last fire for both species, indicating that fire stimulated sprouting. Three growing seasons after fire, sprouts per clump was highest with the lowest fire frequency and declined with increasing fire. The decline was greatest for blackjack oak. This may have been due to reduced vigor of the root systems producing sprouts with increasing fire frequency. Results suggested that post oak and blackjack oak sprouting, growth rates, and response to fire are similar, but blackjack oak sprout mortality may be higher than that of post oak. This information is important for the maintenance of post oak-blackjack oak-dominated forests of the south-central United States.

scholarly journals Datability of Pecan Tree Rings

HortScience ◽  
1995 ◽  
Vol 30 (3) ◽  
pp. 523-524 ◽  
Author(s):  
Marvin Stokes ◽  
Tom Harlan ◽  
Marvin Harris ◽  
J. Benton Storey
Keyword(s):  
Tree Rings ◽  
Cross Sections ◽  
Carya Illinoinensis ◽  
Growth Rings ◽  
Climatic Variations ◽  
Adequate Response ◽  
Post Oak ◽  
Annual Growth Rings ◽  
A Site ◽  
Quercus Stellata

Analyses of stem cross sections of 97 pecan [Carya illinoinensis (Wangenh.) K. Koch] and 22 post oak (Quercus stellata Wangenh.) trees from seven sites showed tree rings were sensitive to the environment and were datable by tree, among trees within a site, among sites, and between species. Pecan had well-defined annual growth rings averaging from 1.25 to 3.36 mm in width and that varied synchronously among trees. Pecan had a mean sensitivity of about 0.3 compared to 0.4 for post oak, indicating a smaller but adequate response of pecan to reflect climatic variations and to use pecan tree rings in other dendrological studies.

Effects of post oak Quercus Stellata and Smooth Brome Bromus Inermis Competition on Water Uptake and Root Partitioning of Eastern Redcedar Juniperus Virginiana

2021 ◽  
Author(s):  
Samia Hamati ◽  
Juliana S. Medeiros ◽  
David Ward
Keyword(s):  
Water Uptake ◽  
Soil Moisture Content ◽  
Bromus Inermis ◽  
Juniperus Virginiana ◽  
Invasive Grass ◽  
Eastern Redcedar ◽  
Growing Seasons ◽  
Post Oak ◽  
Quercus Stellata ◽  
New Habitats

Abstract Water availability may alter species competitive interactions, resulting in different outcomes as plants compete for available water. Eastern redcedar Juniperus virginiana (hereafter ERC) will likely continue to encroach into new habitats, which will affect soil and water budgets. We designed a greenhouse experiment to investigate changes in water uptake and rooting depths of two-year old ERC saplings in the presence of an invasive grass (Bromus inermis) and a native tree (Quercus stellata). We measured soil moisture content over two growing seasons. When grown together, ERC took up water from the deeper layers (21–40 cm) whereas B. inermis used water from the top layers of the soil (0–20 cm). Similarly, when ERC grew with Q. stellata, ERC took up water from the deeper layers and Q. stellata used water mostly from the top layers. This root partitioning can allow the co-existence of ERC, grasses, and other trees, which can facilitate ERC encroachment into grasslands and woodlands. However, when the three species grew together, we found root overlap between the ERC and Q. stellata. This overlap can affect ERC establishment and encroachment in habitats where grasses and trees co-occur. A major factor that affected ERC performance was higher mortality in treatments with B. inermis than in the ERC-alone or with Q. stellata. This indicates that competition with grasses is a major factor affecting ERC sapling establishment.

Economic Assessment of Tebuthiuron-Fire Systems for Brush Management

1987 ◽  
Vol 1 (1) ◽  
pp. 22-28 ◽  
Author(s):  
Charles J. Scifres
Keyword(s):  
Economic Performance ◽  
Prescribed Burning ◽  
Canopy Cover ◽  
Economic Assessment ◽  
Prosopis Glandulosa ◽  
Herbicide Application ◽  
Rates Of Return ◽  
Post Oak ◽  
Brush Management ◽  
Quercus Stellata

Economic performance of prescribed burning following aerial applications of tebuthiuron {N-[5-(1,1-dimethyiethyl)-1,3,4-thiadiazol-2-yl]-N,N′-dimethylurea} pellets was estimated for Texas whitebrush (Aloysia gratissima[Gillies & Hook.] Troncoso # ALYLY)-dominated rangeland and for post oak (Quercus stellataWangenh. # QUESL)-dominated mixed hardwood stands. Honey mesquite (Prosopis glandulosaTorr. # PRCJG) invasion largely negated differences in estimated beef production between treated and untreated pastures within 13 yr of controlling Texas whitebrush with tebuthiuron at 2 kg ai/ha. American beautyberry (Callicarpa americanaL.) and other shrubs increased such that the woody canopy cover was 87% of the original canopy 7 yr after applying tebuthiuron at 2.2 kg/ha to a heavy cover of oaks-mixed hardwoods. Burning at 2- to 4-yr intervals after tebuthiuron applications suppressed invading shrubs and increased projected internal rates of return by about 2% for each burning, compared to herbicide application only.

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