Weed Control in Soils with 2,4-Dichlorophenoxyacetic Acid and Related Compounds and Their Residual Effects under Varying Environmental Conditions

1948 ◽  
Vol 109 (3) ◽  
pp. 324-333 ◽  
Author(s):  
Charles L. Hamner
Keyword(s):  
Weed Control ◽  
Environmental Conditions ◽  
Residual Effects ◽  
Dichlorophenoxyacetic Acid ◽  
2,4 Dichlorophenoxyacetic Acid ◽  
Related Compounds

scholarly journals Bisphenol A promotes stress granule assembly and modulates the integrated stress response

2019 ◽  
Author(s):  
Marta M. Fay ◽  
Daniella Columbo ◽  
Cecelia Cotter ◽  
Chandler Friend ◽  
Shawna Henry ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Endocrine Disruption ◽  
Acute Stress ◽  
Dichlorophenoxyacetic Acid ◽  
High Dose ◽  
Structural Homology ◽  
Relevant Dose ◽  
The Common ◽  
2,4 Dichlorophenoxyacetic Acid ◽  
Related Compounds

AbstractBisphenol-A (BPA) is a ubiquitous precursor of polycarbonate plastics that is found in the blood and serum of >92% of Americans. While BPA has been well documented to act as a weak estrogen receptor (ER) agonist, its effects on cellular stress are unclear. Here, we demonstrate that high-dose BPA causes stress granules (SGs) in human cells. A common estrogen derivative, β-estradiol, does not trigger SGs, indicating the mechanism of SG induction is not via the ER pathway. We also tested other structurally related environmental contaminants including the common BPA substitutes BPS and BPF, the industrial chemical 4-nonylphenol (4-NP) and structurally related compounds 4-EP and 4-VP, and the pesticide 2,4-dichlorophenoxyacetic acid (2,4-D). The variable results from these related compounds suggest that structural homology is not a reliable predictor of the capacity of a compound to cause SGs. Also, we demonstrate that BPA acts primarily through the PERK pathway to generate canonical SGs. Finally, we show that chronic exposure to a low physiologically relevant dose of BPA disrupts SG assembly by inhibiting SGs upon additional acute stress. Our work identifies additional effects of BPA beyond endocrine disruption that may have consequences for human health.

scholarly journals Perennial Ryegrass and Tall Fescue Reseeding Intervals after Aminocyclopyrachlor Application

HortScience ◽  
2012 ◽  
Vol 47 (6) ◽  
pp. 798-800 ◽  
Author(s):  
John B. Workman ◽  
Patrick E. McCullough ◽  
F. Clint Waltz ◽  
James T. Brosnan ◽  
Gerald M. Henry
Keyword(s):  
Weed Control ◽  
Lolium Perenne ◽  
Perennial Ryegrass ◽  
Tall Fescue ◽  
Festuca Arundinacea ◽  
Field Experiments ◽  
Dichlorophenoxyacetic Acid ◽  
Cool Season ◽  
2,4 Dichlorophenoxyacetic Acid

Turfgrass managers applying aminocyclopyrachlor for annual and perennial broadleaf weed control in cool-season turfgrasses may want to reseed into treated areas. Field experiments were conducted in Georgia), Tennessee, and Texas to investigate perennial ryegrass (Lolium perenne L.) and tall fescue (Festuca arundinacea Schreb.) reseeding intervals after aminocyclopyrachlor applications. Perennial ryegrass and tall fescue establishment were similar to the non-treated control after treatments of aminocyclopyrachlor and 2,4-dichlorophenoxyacetic acid (2,4-D) + dicamba + methylchlorophenoxypropionic acid (MCPP) at 0, 2, 4, or 6 weeks before seeding. Results demonstrate that no reseeding interval is required after aminocyclopyrachlor treatment. Perennial ryegrass and tall fescue can be safely seeded immediately after aminocyclopyrachlor treatment at 39, 79, and 158 g/a.i./ha.

Chemical Weed Control in Gladiolus

Weed Science ◽  
1968 ◽  
Vol 16 (1) ◽  
pp. 86-88 ◽  
Author(s):  
J. M. Jenkins ◽  
E. E. Chambers ◽  
F. G. McGee
Keyword(s):  
Weed Control ◽  
Dichlorophenoxyacetic Acid ◽  
Late Season ◽  
2,4 Dichlorophenoxyacetic Acid

Herbicide tests conducted over a period of 3 years indicated that 3-(3,4-dichlorophenyl)-l,l-dimethylurea (diuron) at 2.5 lb/A preemergence, or a,a,a-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine (trifluralin) at 2.0 lb/A preemergence, incorporated, are safe and effective herbicides for weed control in gladiolus (Gladiolus grandiflorus). Applications of dimethylamine salt of 2,4-dichlorophenoxyacetic acid (2,4-D) applied as directed sprays at rates of 0.5 to 1.0 lb/A prior to spiking controlled late season weeds without apparent injury to the plants.

Period of Effective Weed Control by the Use of 2,4-Dichlorophenoxyacetic Acid

Science ◽  
1946 ◽  
Vol 104 (2691) ◽  
pp. 77-79 ◽  
Author(s):  
P. C. MARTH ◽  
J. W. MITCHELL
Keyword(s):  
Weed Control ◽  
Dichlorophenoxyacetic Acid ◽  
2,4 Dichlorophenoxyacetic Acid

scholarly journals Bisphenol A promotes stress granule assembly and modulates the integrated stress response

Biology Open ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. bio057539
Author(s):  
Marta M. Fay ◽  
Daniella Columbo ◽  
Cecelia Cotter ◽  
Chandler Friend ◽  
Shawna Henry ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Translational Control ◽  
Acute Stress ◽  
Dichlorophenoxyacetic Acid ◽  
High Dose ◽  
Translation Inhibition ◽  
Relevant Dose ◽  
The Common ◽  
2,4 Dichlorophenoxyacetic Acid ◽  
Related Compounds

ABSTRACTBisphenol-A (BPA) is a ubiquitous precursor of polycarbonate plastics that is found in the blood and serum of >92% of Americans. While BPA has been well documented to act as a weak estrogen receptor (ER) agonist, its effects on cellular stress are unclear. Here, we demonstrate that high-dose BPA causes stress granules (SGs) in human cells. A common estrogen derivative, β-estradiol, does not trigger SGs, indicating the mechanism of SG induction is not via the ER pathway. We also tested other structurally related environmental contaminants including the common BPA substitutes BPS and BPF, the industrial chemical 4-nonylphenol (4-NP) and structurally related compounds 4-EP and 4-VP, as well as the pesticide 2,4-dichlorophenoxyacetic acid (2,4-D). The variable results from these related compounds suggest that structural homology is not a reliable predictor of the capacity of a compound to cause SGs. Also, we demonstrate that BPA acts primarily through the PERK pathway to generate canonical SGs. Finally, we show that chronic exposure to a low physiologically relevant dose of BPA suppresses SG assembly upon subsequent acute stress. Interestingly, this SG inhibition does not affect phosphorylation of eIF2α or translation inhibition, thus uncoupling the physical assembly of SGs from translational control. Our work identifies additional effects of BPA beyond endocrine disruption that may have consequences for human health.

Bio-efficacy of post emergence herbicides in boro rice nursery as well as main field and their residual effects on non-target microorganisms

2020 ◽  
Vol 57 (3) ◽  
pp. 199-210
Author(s):  
Rajib Kundu ◽  
Mousumi Mondal ◽  
Sourav Garai ◽  
Ramyajit Mondal ◽  
Ratneswar Poddar
Keyword(s):  
Weed Control ◽  
Weed Management ◽  
Field Experiments ◽  
Block Design ◽  
Resistance Index ◽  
Residual Effects ◽  
Cost Ratio ◽  
Main Field ◽  
Weed Species ◽  
Similar Treatment

Field experiments were conducted at research farm of Bidhan Chandra Krishi Viswavidyalaya, Kalyani, West Bengal, India (22°97' N latitude and 88°44' E longitude, 9.75 m above mean sea level) under natural weed infestations in boro season rice (nursery bed as well as main field) during 2017-18 and 2018-19 to evaluate the herbicidal effects on weed floras, yield, non-target soil organisms to optimize the herbicide use for sustainable rice-production. Seven weed control treatments including three doses of bispyribac-sodium 10% SC (150,200, and 250 ml ha-1), two doses of fenoxaprop-p-ethyl 9.3% EC (500 and 625 ml ha-1), one weed free and weedy check were laid out in a randomized complete block design, replicated thrice. Among the tested herbicides, bispyribac-sodium with its highest dose (250 ml ha-1) resulted in maximum weed control efficiency, treatment efficiency index and crop resistance index irrespective of weed species and dates of observation in both nursery as well as main field. Similar treatment also revealed maximum grain yield (5.20 t ha-1), which was 38.38% higher than control, closely followed by Fenoxaprop-p-ethyl (625 ml ha-1) had high efficacy against grasses, sedge and broadleaf weed flora. Maximum net return (Rs. 48765 ha-1) and benefit cost ratio (1.72) were obtained from the treatment which received bispyribac-sodium @ 250 ml ha-1. Based on overall performance, the bispyribac-sodium (250 ml ha-1) may be considered as the best herbicide treatment for weed management in transplanted rice as well as nursery bed.

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