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74511

PERSISTENCE OF DINICONAZOLE AND ETOXAZOLE IN BROAD BEAN PODS, PEELS, SEEDS AND ITS PLANTED SOIL

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Last updated: 22 Jan 2023

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Abstract

Field experiments were conducted to investigate the persistence of diniconazole and etoxazole in broad bean pods, peels, seeds and soil. Samples were taken after zero, 1, 3, 5, 7, 9, 14 and 21 days after pesticides application. The diniconazole residue in plant samples was extracted by methanol, partition with dichloromethane, cleaned up using coagulation solution, while the soil samples were extracted with ethyl acetate. Estimation of diniconazole residues were performed by (GLC- ECD). Etoxazole was extracted from plant samples with acetone, and from soil samples using acetone: water (8: 2 v/v). The extract was partitioned with dichloromethane and cleaned-up through a florisil column. Determination of etoxazole residues were performed by HPLC-DAD. The recoveries of etoxazole and diniconazole were in the range between 81–99 %. The results indicated that the half–life values of diniconazole in pods, peels, seeds and soil were 2.46, 2.29, 5.25 and 5.56 days, respectively. While these values of etoxazole in pods, peels and soil were 2.27, 1.62 and 4.91 days, respectively. No residues of etoxazole could be detected in seeds. Diniconazole residue was below the MRL in seeds. The pre-harvest interval (PHI) of pods was in diniconazole application 9 days.  And in case of etoxazole these were 11 days.
 

DOI

10.21608/jppp.2015.74511

Keywords

persistence, diniconazole, etoxazole, broad bean, PHI, GLC

Authors

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Last Name

Shams EL Din

MiddleName

M.

Affiliation

Plant protection Department, Faculty of Agriculture, Benha University, Egypt

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First Name

M.

Last Name

Azab

MiddleName

M.

Affiliation

Plant protection Department, Faculty of Agriculture, Benha University, Egypt

Email

mohamed.azab@fagr.bu.edu.eg

City

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Orcid

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First Name

Tahany

Last Name

Abd El-Zaher

MiddleName

R.

Affiliation

Plant protection Department, Faculty of Agriculture, Benha University, Egypt

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City

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Orcid

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First Name

Hend

Last Name

Mahmoud

MiddleName

A.

Affiliation

Central Agricultural Pesticide Laboratory, Agriculture Research Center, Dokki, Giza, Egypt

Email

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City

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Orcid

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First Name

Fatma

Last Name

Sleem

MiddleName

M. A.

Affiliation

Central Agricultural Pesticide Laboratory, Agriculture Research Center, Dokki, Giza, Egypt

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Orcid

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Volume

6

Article Issue

5

Related Issue

11262

Issue Date

2015-05-01

Receive Date

2020-02-29

Publish Date

2015-05-01

Page Start

859

Page End

870

Print ISSN

2090-3677

Online ISSN

2090-3758

Link

https://jppp.journals.ekb.eg/article_74511.html

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https://jppp.journals.ekb.eg/service?article_code=74511

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12

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Original Article

Type Code

888

Publication Type

Journal

Publication Title

Journal of Plant Protection and Pathology

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https://jppp.journals.ekb.eg/

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Article

Created At

22 Jan 2023