Response of Herbaceous Vegetation in East-Central Texas to Herbicides

Weed Science ◽  
1985 ◽  
Vol 33 (1) ◽  
pp. 81-90 ◽  
Author(s):  
Robert E. Meyer ◽  
Rodney W. Bovey
Keyword(s):  
Acetic Acid ◽  
Vegetation Cover ◽  
Standing Crop ◽  
Grass Cover ◽  
Herbaceous Vegetation ◽  
East Central ◽  
Post Oak ◽  
Herbicide Treatments ◽  
Central Texas

Twenty herbicides were applied to a rangeland pasture in the Post Oak Savannah Resource Area of Texas in April 1978 and May 1979. At time of treatment, total vegetation cover was 88 to 100%, with 36% grasses and 52 to 64% broadleaf cover. From May 31 through September, total, grass, and broadleaf covers were 89 to 100, 51 to 65, and 27 to 44%, respectively. One to 2 months after treatment, grass cover generally increased except where certain herbicides, particularly bromacil (5-bromo-3-sec-butyl-6-methyluracil), dalapon (2,2-dichloropropionic acid), glyphosate [N-(phosphonomethyl)glycine], or hexazinone [3-cyclohexyl-6-(dimethylamino)-1-methyl-1,3,5-triazine-2,4 (1H, 3H)-dione] had been applied. By September or October in the year of application only dalapon consistently reduced grass cover. In the year following treatment, grass cover was still reduced on the dalapon-treated plots. Most herbicides reduced broadleaf cover in the year of treatment. Broadleaf cover returned most rapidly to those areas treated with dalapon. During the year following treatment, broadleaf cover remained low on plots treated with picloram (4-amino-3,5,6-trichloropicolinic acid), 2,4,5-T [(2,4,5-trichlorophenoxy)acetic acid], and picloram + 2,4,5-T. For plots treated in 1978, the grass and broadleaf standing-crop weights of untreated plots were 490 and 450 kg/ha, respectively, in October 1978, and 2707 and 1033 kg/ha in October 1979. In 1978, grass weight increased with several herbicide treatments whereas only dalapon increased the broadleaf weight. For plots treated in May 1979 and harvested in September 1979, grass and broadleaf standing-crop weights of untreated plots were 2629 and 607 kg/ha, respectively.

Response of Common Goldenweed (Isocoma coronopifolia) and Buffelgrass (Cenchrus ciliaris) to Fire and Soil-Applied Herbicides

Weed Science ◽  
1983 ◽  
Vol 31 (3) ◽  
pp. 355-360 ◽  
Author(s):  
H. S. Mayeux ◽  
W. T. Hamilton
Keyword(s):  
Acetic Acid ◽  
Standing Crop ◽  
Canopy Cover ◽  
Cenchrus Ciliaris ◽  
Controlled Burning ◽  
Herbicide Treatments ◽  
Anisic Acid ◽  
Excellent Control ◽  
Dichlorophenoxy Acetic Acid

Controlled burning during winter reduced densities of common goldenweed [Isocoma coronopifolia(Gray) Greene] by 33 to 44% and suppressed canopy cover and height of surviving common goldenweeds for 2 yr. Applied to an unburned infestation, 2,4-D [(2,4-dichlorophenoxy) acetic acid] or dicamba (3,6-dichloro-o-anisic acid) granules only partially controlled common goldenweed at rates of 2 kg/ha or less. Tebuthiuron {N-[5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]-N,N′-dimethylurea} or picloram (4-amino-3,5,6-trichloropicolinic acid) pellets provided excellent control of common goldenweed if applied at 2 kg/ha during March and at 1 kg/ha if applied after burning in February. The burning pretreatment appeared to synergistically enhance effectiveness of herbicides applied at relatively low rates. Increases in standing crop of buffelgrass (Cenchrus ciliarisL.) following burning were usually small and temporary, but effective herbicide treatments and burn-herbicide combinations increased buffelgrass standing crop by as much as three-fold.

scholarly journals Aboriginal Ceramic Wares from Sites in the Yegua Creek Drainage of the Brazos River Basin, East Central Texas

2019 ◽  
Author(s):  
Timothy Perttul
Keyword(s):  
River Basin ◽  
Aboriginal Peoples ◽  
Way Of Life ◽  
Brazos River ◽  
East Central ◽  
Post Oak ◽  
Central Texas ◽  
Ceramic Vessels ◽  
Ceramic Sherd ◽  
Trade And Exchange

Sherds from aboriginally-made ceramic vessels have been recovered on sites dating after ca. 2000 years B.P. in the Yegua Creek drainage of the Brazos River basin in the Post Oak Savannah of Burleson, Lee, and Washington counties in east central Texas (Figure 1). These sherds are from several different wares, including sandy paste Goose Creek Plain sherds made by Mossy Grove peoples, ancestral Caddo tempered and decorated wares made in East Texas, bone-tempered sandy paste wares that may be representative of a local ceramic tradition, and bone-tempered sherds from Leon Plain vessels made by Central Texas Toyah phase peoples. None of the ceramic sherd assemblages from the 18 sites discussed herein are substantial, ranging only from 1-72 sherds per site (with an average of only 13.3 sherds per site), indicating that the use (much less their manufacture) of ceramic vessels by Post Oak Savannah aboriginal peoples was not of much significance in their way of life, but may signify interaction, trade, and exchange between them and other cultures, such as the Caddo, inland and coastal Mossy Grove, and Toyah phase peoples that relied on ceramic vessel manufacture and use as key parts of their subsistence pursuits. It is likely that the benefits of trade (ceramics being just one of the items that was being traded) between these different peoples was to help establish cooperative alliances, and reduce competition and violence in the region, and such alliances were established and maintained by aboriginal peoples over a long period of time in the region.

Response of Yankeeweed (Eupatorium compositifolium) and Associated Pasture Plants to Herbicides

1991 ◽  
Vol 5 (1) ◽  
pp. 214-217
Author(s):  
Robert E. Meyer ◽  
Rodney W. Bovey
Keyword(s):  
Grass Cover ◽  
East Central ◽  
Untreated Area ◽  
Coastal Bermudagrass ◽  
Central Texas ◽  
Pasture Plants

Eleven herbicides applied in May, were evaluated for yankeeweed control in East-Central Texas. Yankeeweed cover 1 yr later was reduced to 5% or less by 0.28 kg ha-1 of picloram; 0.56 kg ha-1 of clopyralid, glyphosate, or dicamba; 0.28 + 0.84 kg ha-1 of dicamba + 2,4-D, and 1.1 kg ha-1 triclopyr compared with 30% cover in the untreated area. Chlorsulfuron and metsulfuron at 0.07 kg ha-1 reduced yankeeweed cover to 12 and 7%, respectively. Dalapon, 2,4-D, and tebuthiuron were relatively ineffective. Most herbicides, reduced woolly croton cover within 1 mo after treatment compared to the untreated areas, but 2,4-D at 0.28 kg ha-1 and chlorsulfuron at 0.02 kg ha-1 and 0.07 kg ha-1 were most effective after 4 mo. All herbicides, except dalapon at 1.1 kg ha-1 or less and most rates of 2,4-D and tebuthiuron, reduced partridgepea cover during the year of application. Total grass cover was increased 4 and 12 mo following treatment with clopyralid, picloram, dicamba, and triclopyr. On separate sites, bahiagrass and coastal bermudagrass accounted for most of the increased grass cover.

scholarly journals Recent Archeological Investigations at the Jewett Mine, East-Central Texas

1989 ◽  
Keyword(s):  
River Valley ◽  
East Central ◽  
Settlement Systems ◽  
Trinity River ◽  
Post Oak ◽  
Lignite Mine ◽  
Central Texas ◽  
Mine Sites ◽  
The Trinity ◽  
Shed Light

The Jewett Mine is a ca. 21, 000-acre lignite mine in the post oak savannah of Freestone, Leon, and Limestone counties, Texas. The project area straddles the divide between the Navasota River valley on the west and the Trinity River valley on the east and lies at the western margin of the Caddoan area . Although residential use of the area by the Caddo has not been documented, many sites have yielded small quantities of Caddoan pottery, and it is likely that cultures indigenous to the region were affected by the development of Caddoan culture not far to the east. For reference, the George C. Davis Site (41CE19) lies only 95 km to the east-northeast. In addition to contributing information about the interaction between Caddoan and neighboring groups in the central part of East Texas, the Jewett Mine sites, by virtue of their location in the Eastern Woodlands but outside of the Caddoan area proper, have the potential to shed light on such topics as regional Caddoan settlement systems and the origins of Caddo culture.

scholarly journals Woody Vegetation Cover, Attrition, and Patch Metrics over Eight Decades in Central Texas, United States

2021 ◽  
Vol 78 ◽  
pp. 54-66
Author(s):  
Edward C. Rhodes ◽  
Jay P. Angerer ◽  
William E. Fox ◽  
Jason R. McAlister
Keyword(s):  
United States ◽  
Vegetation Cover ◽  
Woody Vegetation ◽  
Central Texas

scholarly journals Weed Control in Spring and Summer After Fall Application of Sulfometuron

1999 ◽  
Vol 14 (2) ◽  
pp. 80-85
Author(s):  
J. Scott Ketchum ◽  
Robin Rose ◽  
Bruce Kelpsas
Keyword(s):  
Weed Control ◽  
Vegetation Cover ◽  
Forest Regeneration ◽  
Coastal Forests ◽  
Late Fall ◽  
Silvicultural Treatment ◽  
Herbicide Treatments ◽  
Fall Application

Abstract This study tested the residual spring and summer efficacy of sulfometuron after fall applications in forest regeneration settings in coastal forests of Oregon. This is the first reporting of results from what is becoming a more widely used silvicultural treatment. Sulfometuron alone (S) and sulfometuron plus imazapyr and glyphosate (SIG) were applied to vegetation on mechanically scarified sites and unscarified sites. The applications were replicated each month through fall 1994. Vegetation cover was assessed in mid-June and mid-August 1995. The SIG treatment controlled the vegetation more than the S treatment did, although cover was significantly lower for both herbicide treatments (9% to 54% for summed cover) compared to the control (64% to 104% for summed cover). On scarified sites, the month of application, early or late fall, did not significantly influence the efficacy of S or SIG treatments. On unscarified sites, however, later applications of the SIG treatment were less effective than earlier treatments were. These results suggest that fall applications of sulfometuron are still effective in spring and may eliminate the need to retreat sites in the spring to achieve effective weed control. West. J. Appl. For. 14(2):80-85.

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