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אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Accelerated degradation of metam-sodium and dazomet in soil: Characterization and consequences for pathogen control
Year:
2003
Source of publication :
Crop Protection
Authors :
אוסטרוויל, מרים
;
.
בניחיס, מרינה
;
.
גמליאל, אברהם
;
.
די פרימו, פ'
;
.
שטיינר, ברכה
;
.
Volume :
22
Co-Authors:
Di Primo, P., Laboratory for Pest Management, Res. Inst. of Agric. Engineering, Volcani Center, Bet Dagan 50250, Israel
Gamliel, A., Laboratory for Pest Management, Res. Inst. of Agric. Engineering, Volcani Center, Bet Dagan 50250, Israel
Austerweil, M., Laboratory for Pest Management, Res. Inst. of Agric. Engineering, Volcani Center, Bet Dagan 50250, Israel
Steiner, B., Laboratory for Pest Management, Res. Inst. of Agric. Engineering, Volcani Center, Bet Dagan 50250, Israel
Beniches, M., Laboratory for Pest Management, Res. Inst. of Agric. Engineering, Volcani Center, Bet Dagan 50250, Israel
Peretz-Alon, I., RandD, Yaham Ma'on Region, Negev 85465, Israel
Katan, J., Dept. of Plant Pathol./Microbiology, Fac. Agric., Food/Environ. Qual. S., Hebrew University of Jerusalem, Rehovot 76100, Israel
Facilitators :
From page:
635
To page:
646
(
Total pages:
12
)
Abstract:
Metam-sodium (MS) and dazomet (DAZ) are soil fumigants that generate methyl-isothiocyanate (MITC) in soil. The latter effectively controls soilborne plant pathogens. Recently, we have found that repeated applications of MS yield less effective pathogen control. Soil samples collected from 12 field sites in Israel without (nonhistory) or with (history) previous applications of MS or DAZ were tested for MITC generation and dissipation. Accelerated MITC degradation in history soils, as reflected by a sharp reduction in the concentration x time (C x T) values and half-lives of MITC, was evident in most of the tested history soils. Exposure to MS and DAZ in those soils resulted in a significant reduction in Verticillium dahliae, Sclerotium rolfsii and Fusarium oxysporum f. sp. radicis-lycopersici mortality compared to exposure in nonhistory soils. The chemical and biological assays were well correlated. This is the first report of accelerated degradation of MITC resulting from repeated applications of DAZ. MITC was rapidly degraded in soils which had been previously treated with either MS or DAZ, indicating induced cross-accelerated degradation with both fumigants. In two field soils, accelerated degradation of MITC capacity was still evident for 18 to 30 months after treatment. This study suggests that accelerated degradation of MITC is a likely cause of the poor pathogen control observed in commercial potato and peanut fields upon repeated application of the fumigants MS and DAZ, and emphasizes the need for rational use of pesticides to maintain their efficacy. © 2003 Elsevier Science Ltd. All rights reserved.
Note:
Related Files :
Arachis hypogaea
Biodegradation
Fusarium
soil
Solanum tuberosum
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/S0261-2194(03)00004-8
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
25211
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:13
Scientific Publication
Accelerated degradation of metam-sodium and dazomet in soil: Characterization and consequences for pathogen control
22
Di Primo, P., Laboratory for Pest Management, Res. Inst. of Agric. Engineering, Volcani Center, Bet Dagan 50250, Israel
Gamliel, A., Laboratory for Pest Management, Res. Inst. of Agric. Engineering, Volcani Center, Bet Dagan 50250, Israel
Austerweil, M., Laboratory for Pest Management, Res. Inst. of Agric. Engineering, Volcani Center, Bet Dagan 50250, Israel
Steiner, B., Laboratory for Pest Management, Res. Inst. of Agric. Engineering, Volcani Center, Bet Dagan 50250, Israel
Beniches, M., Laboratory for Pest Management, Res. Inst. of Agric. Engineering, Volcani Center, Bet Dagan 50250, Israel
Peretz-Alon, I., RandD, Yaham Ma'on Region, Negev 85465, Israel
Katan, J., Dept. of Plant Pathol./Microbiology, Fac. Agric., Food/Environ. Qual. S., Hebrew University of Jerusalem, Rehovot 76100, Israel
Accelerated degradation of metam-sodium and dazomet in soil: Characterization and consequences for pathogen control
Metam-sodium (MS) and dazomet (DAZ) are soil fumigants that generate methyl-isothiocyanate (MITC) in soil. The latter effectively controls soilborne plant pathogens. Recently, we have found that repeated applications of MS yield less effective pathogen control. Soil samples collected from 12 field sites in Israel without (nonhistory) or with (history) previous applications of MS or DAZ were tested for MITC generation and dissipation. Accelerated MITC degradation in history soils, as reflected by a sharp reduction in the concentration x time (C x T) values and half-lives of MITC, was evident in most of the tested history soils. Exposure to MS and DAZ in those soils resulted in a significant reduction in Verticillium dahliae, Sclerotium rolfsii and Fusarium oxysporum f. sp. radicis-lycopersici mortality compared to exposure in nonhistory soils. The chemical and biological assays were well correlated. This is the first report of accelerated degradation of MITC resulting from repeated applications of DAZ. MITC was rapidly degraded in soils which had been previously treated with either MS or DAZ, indicating induced cross-accelerated degradation with both fumigants. In two field soils, accelerated degradation of MITC capacity was still evident for 18 to 30 months after treatment. This study suggests that accelerated degradation of MITC is a likely cause of the poor pathogen control observed in commercial potato and peanut fields upon repeated application of the fumigants MS and DAZ, and emphasizes the need for rational use of pesticides to maintain their efficacy. © 2003 Elsevier Science Ltd. All rights reserved.
Scientific Publication
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