Results 171 to 180 of about 3,528 (214)

PICLORAM FOR THE CONTROL OF LEAFY SPURGE

Canadian Journal of Plant Science, 1975
The application of 2.2 kg/ha of picloram provided adequate control of Euphorbia esula L. for 3–5 yr after the treatment year. However, regardless of whether the chemical was applied in 1965, 1966, or 1967, it became ineffective by 1971. While it appeared that the chemical disappeared during the 12-mo period prior to the summer of 1971, this could not ...
GARRY BOWES, E. S. MOLBERG
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Dissipation of Picloram in Storm Runoff

Journal of Environmental Quality, 1984
AbstractThe extent of progressive decrease in concentration of the herbicide picloram (4‐amino‐3,5,6‐trichloropicolinic acid) in intermittent streamflow was determined during runoff‐producing storms. Maximum concentrations of picloram were 48 and 250 mg/m3 in initial runoff water leaving a sprayed 8‐ha area in 1978 and 1979.
H. S. Mayeux, C. W. Richardson, R. W. Bovey, Earl Burnett, M. G. Merkle, R. E. Meyer   +5 more
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Concentration of Picloram in the Soil Profile

Weed Science, 1972
Soil residue levels were studied to a depth of 2.4 m for a period of 2 years after application of 1.12 kg/ha of 4-amino-3,5,6-trichloropicolinic acid (picloram). Thirty days after application 93 ppb were recovered in the top 15 cm of soil. Residues were less than 5 ppb at depths of 46 to 122 cm. Six months after application, residues were between 5 and
J. R. Baur, R. D. Baker, R. W. Bovey, J. D. Smith   +3 more
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Concentration of Picloram in Runoff Water

Weed Science, 1972
Runoff water was sampled over a 2-year period from an 8-ha site that had been treated and retreated with 4-amino-3,5,6-trichloropicolinic acid (picloram) at the rate of 1.12 kg/ha in the spring of 1969 and 1970. Runoff water was sampled adjacent to the plots and in two creek systems up to 2.0 km from the plots.
J. R. Baur, R. W. Bovey, M. G. Merkle
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An Aquatic Hazard Assessment: Picloram

1985
Picloram (4-amino-3,5,6-trichloropicolinic acid) exhibits herbicidal activities on broadleaf weeds and woody plants and is registered under the trademarks of TORDON®, GRAZON®, and AMDON® herbicides. It is an organic acid (pKa = 3.2); thus at environmental pH ranges it is usually found in the ionized anionic form.
MA Mayes, GR Oliver
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MOVEMENT OF PICLORAM IN SOIL COLUMNS

Canadian Journal of Soil Science, 1973
The movement of picloram (4-amino-3,5,6-trichloropicolinic acid) was studied in various Canadian Prairie soils, using soil columns. Picloram was readily leached in all soil types. The movement was greatest in the soil with the lowest organic matter and clay contents, and lowest in black soils that are high in soil organic matter content.
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PICLORAM RESIDUES AND CROP PRODUCTION

Canadian Journal of Plant Science, 1969
not available
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Picloram photolytic decomposition

Journal of Agricultural and Food Chemistry, 1973
A R, Mosier, W D, Guenzi
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Picloram in Vietnam

Scientist and Citizen, 1968
George R. Harvey, Jay D. Mann
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PICLORAM DISPLACEMENT IN SOIL

Soil Science, 1976
K. B. MACDONALD, R. B. MCKERCHER, J. R. MOYER   +2 more
openaire   +1 more source