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פותח על ידי קלירמאש פתרונות בע"מ -
Residues of croneton and its sulfoxide and sulfone metabolites in citrus (Clementine trees) following a soil treatment for the control of Aphis spiraecola
Year:
1979
Authors :
אהרונסון, נדב
;
.
ישעיה, יצחק
;
.
נויבאואר, אילן
;
.
רקח, בנימין
;
.
Volume :
27
Co-Authors:
Aharonson, N., Pesticide Chemistry and Residue Research Laboratory, Division of Entomology, Volcani Center, Bet Dagan, Israel
Neubauer, I., Pesticide Chemistry and Residue Research Laboratory, Division of Entomology, Volcani Center, Bet Dagan, Israel
Ishaaya, I., Pesticide Chemistry and Residue Research Laboratory, Division of Entomology, Volcani Center, Bet Dagan, Israel
Raccah, B., Division of Virology, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Facilitators :
From page:
265
To page:
268
(
Total pages:
4
)
Abstract:
Residues of the insecticide croneton, [2-(ethylthio)methyl]phenyl N-methylcarbamate, and its sulfoxide and sulfone metabolites were determined in Clementine (C. reticulata Blanco) leaves and fruits following soil treatment with 2, 6, and 18 g of active ingredient (AI) per tree. The analytical procedure was improved to separate croneton from its two oxygen analogues. Croneton was extracted with petroleum ether and its sulfoxide and sulfone metabolites with chloroform; all were silylated with bis(trimethylsilyl) trifluoroacetamide and determined by gas-liquid chromatography using the flame photometric detector. The carbamate was found to accumulate in the leaves and mainly in its oxidized forms. Soil treatment with 18 g of AI/tree resulted in a slow accumulation in the leaves during the first 12 days (up to 2 ppm), followed by a much faster rate. After 42 days the total residue level was 12 ppm (0.4 ppm croneton, 5.6 ppm sulfoxide, and 6.2 ppm sulfone). Residues in the leaves were proportional to the dosage applied to the soil. An average level of 4-6 ppm of the carbamate in the leaves provided satisfactory control of the spirea aphid. Similar results were found when the spirea aphids were fed on a synthetic diet containing similar levels of the insecticide. © 1979 American Chemical Society.
Note:
Related Files :
animal experiment
citrus fruit
ethiofencarb
higher plant
metabolism
tree
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר מתוך כינוס
;
.
Language:
אנגלית
Editors' remarks:
ID:
24752
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:09
You may also be interested in
Scientific Publication
Residues of croneton and its sulfoxide and sulfone metabolites in citrus (Clementine trees) following a soil treatment for the control of Aphis spiraecola
27
Aharonson, N., Pesticide Chemistry and Residue Research Laboratory, Division of Entomology, Volcani Center, Bet Dagan, Israel
Neubauer, I., Pesticide Chemistry and Residue Research Laboratory, Division of Entomology, Volcani Center, Bet Dagan, Israel
Ishaaya, I., Pesticide Chemistry and Residue Research Laboratory, Division of Entomology, Volcani Center, Bet Dagan, Israel
Raccah, B., Division of Virology, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Residues of croneton and its sulfoxide and sulfone metabolites in citrus (Clementine trees) following a soil treatment for the control of Aphis spiraecola
Residues of the insecticide croneton, [2-(ethylthio)methyl]phenyl N-methylcarbamate, and its sulfoxide and sulfone metabolites were determined in Clementine (C. reticulata Blanco) leaves and fruits following soil treatment with 2, 6, and 18 g of active ingredient (AI) per tree. The analytical procedure was improved to separate croneton from its two oxygen analogues. Croneton was extracted with petroleum ether and its sulfoxide and sulfone metabolites with chloroform; all were silylated with bis(trimethylsilyl) trifluoroacetamide and determined by gas-liquid chromatography using the flame photometric detector. The carbamate was found to accumulate in the leaves and mainly in its oxidized forms. Soil treatment with 18 g of AI/tree resulted in a slow accumulation in the leaves during the first 12 days (up to 2 ppm), followed by a much faster rate. After 42 days the total residue level was 12 ppm (0.4 ppm croneton, 5.6 ppm sulfoxide, and 6.2 ppm sulfone). Residues in the leaves were proportional to the dosage applied to the soil. An average level of 4-6 ppm of the carbamate in the leaves provided satisfactory control of the spirea aphid. Similar results were found when the spirea aphids were fed on a synthetic diet containing similar levels of the insecticide. © 1979 American Chemical Society.
Scientific Publication
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