Results 191 to 200 of about 4,143 (244)
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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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Bulletin of Environmental Contamination and Toxicology, 2018 Surface sediments from Reloncaví Fjord and the Chiloé inner sea in Chilean Patagonia were extracted and analyzed to estimate deltamethrin and diflubenzuron levels.
J. Placencia +3 more
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Detection of diflubenzuron and pyrethroid resistance mutations in Culex pipiens from Muğla, Turkey.
Acta Tropica, 2019Chemical insecticides are the main tool for vector control worldwide with pyrethroids and the larvicide diflubenzuron (DFB) used extensively against the primary West Nile virus vector Culex pipiens.
N. Guz +4 more
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, 2020
Several products are widely used to control gypsy moth (Lymantria dispar) populations. The main purpose of the present study is to evaluate the aerial application effects of B.
M. Leza, R. González-Ruiz, A. Alemany
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Several products are widely used to control gypsy moth (Lymantria dispar) populations. The main purpose of the present study is to evaluate the aerial application effects of B.
M. Leza, R. González-Ruiz, A. Alemany
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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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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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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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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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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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