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Titolo:
RESIDUES AND FATE OF ENDOSULFAN ON FIELD-GROWN PEPPER AND TOMATO
Autore:
ANTONIOUS GF; BYERS ME; SNYDER JC;
Indirizzi:
KENTUCKY STATE UNIV,DEPT PLANT & SOIL SCI,ATWOOD RES FACIL,COMMUNITY RES SERV FRANKFORT KY 40601 UNIV KENTUCKY,DEPT HORT LEXINGTON KY 40546
Titolo Testata:
Pesticide science
fascicolo: 1, volume: 54, anno: 1998,
pagine: 61 - 67
SICI:
0031-613X(1998)54:1<61:RAFOEO>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
ALPHA-ENDOSULFAN; BETA-ENDOSULFAN; METHAMIDOPHOS; DEGRADATION; DISSIPATION; ACEPHATE; BIODEGRADATION; METABOLITE; PESTICIDES; CUCUMBER;
Keywords:
THIODAN; ENDOSULFAN ISOMERS; ENDOSULFAN SULFATE; DISLODGEABLE FOLIAR RESIDUES; HALF-LIVES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
43
Recensione:
Indirizzi per estratti:
Citazione:
G.F. Antonious et al., "RESIDUES AND FATE OF ENDOSULFAN ON FIELD-GROWN PEPPER AND TOMATO", Pesticide science, 54(1), 1998, pp. 61-67

Abstract

Endosulfan (Thiodan 3 EC), a mixture of alpha- and beta-isomers, was sprayed on 92-day-old field-grown pepper and tomato at the recommendedrate of 0.61 kg AI ha(-1). Plant tissue samples were collected at 1 hto 14 days after application and analysed to determine the content and dissipation rate of endosulfan isomers (alpha- and beta-endosulfan) and the major metabolite, endosulfan sulfate. Analysis of samples was accomplished using gas chromatography-mass selective detection (GC-MSD). The results indicated the formation of endosulfan sulfate as a residue component on the plant tissues and also the relatively higher persistence of the beta-isomer as compared to the alpha-isomer on pepper fruits.; The initial total residues (alpha- and beta-endosulfan isomersplus endosulfan sulfate) were higher on leaves than on fruits. On pepper fruits, the alpha-isomer, which is the more toxic to mammals, dissipated faster than the less toxic beta-isomer. Total residues (alpha- and beta-endosulfan isomers plus the sulfate metabolite) on tomato leaves revealed longer persistence (t(1/2) 4.6 days) compared to the total residues detected on pepper leaves (t(1/2) 2.0 days) 3-14 days following spraying. Persistence of the beta-isomer on pepper fruits was high 3-14 days following spraying compared to on tomato fruits. This longpersistence increases risk of exposure of the consumer. In addition, the longer persistence of the total residues on tomato foliage should be considered of importance for timing the safe entry of tomato harvesters due to the high mammalian toxicity of endosulfan. (C) 1998 Society of Chemical Industry.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/10/20 alle ore 01:25:09