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פותח על ידי קלירמאש פתרונות בע"מ -
Joint Action of Disease Control Measures: A Case Study of Alternaria Leaf Blight of Carrot
Year:
2003
Source of publication :
Phytopathology
Authors :
בן-נון, ארז
;
.
שטיינברג, דני
;
.
Volume :
93
Co-Authors:
Ben-Noon, E., Department of Plant Pathology, ARO, Volcani Center, Bet Dagan 50250, Israel, Dept. Plant Pathol. and Microbiol., Fac. Agric. Food Environ. Qual. Sci., Hebrew University of Jerusalem, Rehovot 70600, Israel
Shtienberg, D., Department of Plant Pathology, ARO, Volcani Center, Bet Dagan 50250, Israel
Shlevin, E., Kibbutz Sa'ad, NP Negev, 85140, Israel
Dinoor, A., Dept. Plant Pathol. and Microbiol., Fac. Agric. Food Environ. Qual. Sci., Hebrew University of Jerusalem, Rehovot 70600, Israel
Facilitators :
From page:
1320
To page:
1328
(
Total pages:
9
)
Abstract:
The efficacy of chemical (i.e., foliar fungicide sprays), genetic (i.e., moderately resistant cultivars), and cultural (i.e., drip-irrigation system) control measures was quantified individually and in combination in the management of Alternaria dauci, the causal agent of Alternaria leaf blight of carrot. Whereas host resistance and drip irrigation affected both the time of disease onset and the rate of disease progression, chemical control affected only the latter. In all cases, a single control measure did not provide an acceptable level of disease suppression. Control efficacy values (based on the relative area under the disease progress curve) for chemical, genetic, and cultural control were 58 ± 11, 39 ± 20, and 60 ± 22%, respectively (values are means ± standard error). By contrast, implementing two control measures concurrently always improved disease suppression significantly compared with the individual measures. Control efficacy values were 91 ± 8% for the integration of chemical and genetic measures and 82 ± 23% for the integration of chemical and cultural measures. Moreover, yields in plots protected by two control measures simultaneously were higher by 10.1 to 28.6 t/ha than those in the respective plots protected by single measures. The joint effect of chemical control and host resistance was additive, whereas that of chemical control and drip irrigation was synergistic in most cases. A literature review was performed to determine if these findings represent a general relationship between chemical and genetic, and chemical and cultural measures. Based on 19 reviewed cases, it was concluded that additive effects are the rule and synergistic or antagonistic effects are the exception. Synergistic effects of two control measures were observed when one control measure improved the efficacy of the other directly or when one control measure induced host resistance or predisposed the pathogen to increased susceptibility. These results may enable a more effective selection of candidate control measures for integration in the future.
Note:
Related Files :
Alternaria
Alternaria dauci
Daucus
Daucus carota
fungi
integrated pest management
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
27705
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:33
Scientific Publication
Joint Action of Disease Control Measures: A Case Study of Alternaria Leaf Blight of Carrot
93
Ben-Noon, E., Department of Plant Pathology, ARO, Volcani Center, Bet Dagan 50250, Israel, Dept. Plant Pathol. and Microbiol., Fac. Agric. Food Environ. Qual. Sci., Hebrew University of Jerusalem, Rehovot 70600, Israel
Shtienberg, D., Department of Plant Pathology, ARO, Volcani Center, Bet Dagan 50250, Israel
Shlevin, E., Kibbutz Sa'ad, NP Negev, 85140, Israel
Dinoor, A., Dept. Plant Pathol. and Microbiol., Fac. Agric. Food Environ. Qual. Sci., Hebrew University of Jerusalem, Rehovot 70600, Israel
Joint Action of Disease Control Measures: A Case Study of Alternaria Leaf Blight of Carrot
The efficacy of chemical (i.e., foliar fungicide sprays), genetic (i.e., moderately resistant cultivars), and cultural (i.e., drip-irrigation system) control measures was quantified individually and in combination in the management of Alternaria dauci, the causal agent of Alternaria leaf blight of carrot. Whereas host resistance and drip irrigation affected both the time of disease onset and the rate of disease progression, chemical control affected only the latter. In all cases, a single control measure did not provide an acceptable level of disease suppression. Control efficacy values (based on the relative area under the disease progress curve) for chemical, genetic, and cultural control were 58 ± 11, 39 ± 20, and 60 ± 22%, respectively (values are means ± standard error). By contrast, implementing two control measures concurrently always improved disease suppression significantly compared with the individual measures. Control efficacy values were 91 ± 8% for the integration of chemical and genetic measures and 82 ± 23% for the integration of chemical and cultural measures. Moreover, yields in plots protected by two control measures simultaneously were higher by 10.1 to 28.6 t/ha than those in the respective plots protected by single measures. The joint effect of chemical control and host resistance was additive, whereas that of chemical control and drip irrigation was synergistic in most cases. A literature review was performed to determine if these findings represent a general relationship between chemical and genetic, and chemical and cultural measures. Based on 19 reviewed cases, it was concluded that additive effects are the rule and synergistic or antagonistic effects are the exception. Synergistic effects of two control measures were observed when one control measure improved the efficacy of the other directly or when one control measure induced host resistance or predisposed the pathogen to increased susceptibility. These results may enable a more effective selection of candidate control measures for integration in the future.
Scientific Publication
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