Results 121 to 130 of about 1,027 (172)
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Diflubenzuron: Intestinal absorption and metabolism in the rat
Xenobiotica, 19801. The metabolic fate of the insecticide diflubenzuron was investigated in the rat with radioactively labelled forms of the compound. 2. Intestinal absorption, measured as the sum of urinary and biliary excretion, diminished greatly with increasing dose, from about 50% at 4 mg/kg to about 4% at 900 mg/kg. 3.
A G, Willems +4 more
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Diflubenzuron surface residues in florida citrus
Bulletin of Environmental Contamination and Toxicology, 1986Taux de residus superficiels et variations saisonnieres de la persistance de l'insecticide au niveau des fruits mais aussi des feuilles et du ...
H N, Nigg, R D, Cannizzaro, J H, Stamper
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FATE AND DISPOSITION OF DIFLUBENZURON IN RICE FIELDS
Environmental Toxicology and Chemistry, 1996Abstract Laboratory and field investigations were undertaken to determine the fate, disposition, and persistence of the insecticide diflubenzuron in California rice culture. Water solubility was similar in distilled/deionized water (88.8 ± 4.0 μg/L) and rice field water (92.6 ± 3.5 μg/L), while the measured Henry's law constant was 2.34 ±
Scott A. Mabury, Donald G. Crosby
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Journal of Agricultural and Food Chemistry, 1991
A new and rapid gas chromatography/mass spectrometry analytical procedure for insect growth regulator diflubenzuron, a phenylurea-based insecticide, has been developed. Diflubenzuron is decomposed by the heat of a gas chromatograph into three reproducible fragments, 4-chlorophenyl isocyanate, 4-chloroaniline, and 2,6-difluorobenzamide, which elute ...
Mary J. Wimmer +2 more
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A new and rapid gas chromatography/mass spectrometry analytical procedure for insect growth regulator diflubenzuron, a phenylurea-based insecticide, has been developed. Diflubenzuron is decomposed by the heat of a gas chromatograph into three reproducible fragments, 4-chlorophenyl isocyanate, 4-chloroaniline, and 2,6-difluorobenzamide, which elute ...
Mary J. Wimmer +2 more
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Persistence of Diflubenzuron on Soybean Leaves
Journal of Entomological Science, 2004Diflubenzuron [Dimilin™, N-[{(4-chlorophenyl)amino}carbonyl]-2-6-difluorobenzamide] is an insect growth regulator that is highly effective and provides residual control (up to 54 days) against velvetbean caterpillar, Anticarsia gemmatalis Hübner, on soybean, Glycine max (L.) Merrill, in Louisiana.
David J. Boethel +3 more
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The effects of diflubenzuron on a complex laboratory stream community
Archives of Environmental Contamination and Toxicology, 1982Effects were assessed on the total biological community in complex laboratory streams caused by continuous exposure to diflubenzuron (1-(4-chlorophenyl)-3-(2,6-difluorobenzoyl) urea). The insect fauna suffered direct toxic effects at concentrations of 1.0 microgram/L and greater.
S R, Hansen, R R, Garton
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Ecotoxicological effect of diflubenzuron
36. Savetovanje dezinfekcija, dezinsekcija i deratizacija jedan svet - jedno zdravlje - zbornik radovaDiflubenzuron is an insecticide from the group of insect growth regulators, widely used in agriculture and forestry for pest control. Its application can have negative effects on non-target organisms and ecosystems. In the environment, diflubenzuron degrades through hydrolysis, photodegradation, and microbial activity, producing 4-chloroaniline (4-CA),
Jovana Savanović +4 more
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Pesticide Science, 1984
Abstract[14C]Diflubenzuron is readily degraded in various agricultural soils and in hydro‐soil; 50% of the applied dose of 1 mg kg−1 was metabolised in 2 days or less. The chief products of hydrolysis were identified as 4‐chlorophenylurea and 2, 6‐difluorobenzoic acid. A part of the radioactivity, increasing with incubation time, could not be extracted.
Wijnand B. Nimmo +2 more
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Abstract[14C]Diflubenzuron is readily degraded in various agricultural soils and in hydro‐soil; 50% of the applied dose of 1 mg kg−1 was metabolised in 2 days or less. The chief products of hydrolysis were identified as 4‐chlorophenylurea and 2, 6‐difluorobenzoic acid. A part of the radioactivity, increasing with incubation time, could not be extracted.
Wijnand B. Nimmo +2 more
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Preliminary study of synergism of acid rain and diflubenzuron
Bulletin of Environmental Contamination and Toxicology, 1995Diflubenzuron{sup 1} (Dimilin{reg_sign}) was used on over 7 million acres in the U.S. in 1990 to control forest pests, particularly the gypsy moth. This chitin synthesis inhibitor affects insects and other anthropods. It is a restricted use pesticide due to its nontarget effects on aquatic macroinvertebrates.
P J, Martin, J M, Clark, J D, Edman
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Effects of Diflubenzuron on Benthic Macroinvertebrates in Littoral Enclosures
Archives of Environmental Contamination and Toxicology, 1996Two applications of the insect growth regulator diflubenzuron were made to replicate littoral enclosures at nominal concentrations of 0.7, 2.5, 7.0, and 30 &mgr;g/L. Assessment of the effects of this insecticide on benthic macroinvertebrate community structure was accomplished by measuring changes in abundance and taxonomic richness.
, O'Halloran +3 more
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