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Biological control of early blight in tomatoes
Year:
1999
Source of publication :
Acta Horticulturae
Authors :
Tsror, Leah
;
.
Volume :
487
Co-Authors:
Leah, T., Plant Pathology, Gilat Experiment Station, Agricultural Research Organization, M. P. Negev 85280, Israel
Facilitators :
From page:
271
To page:
273
(
Total pages:
3
)
Abstract:
Early blight is a limiting factor in production of organic tomato in semiarid climate regions. Control of this disease is crucial, because in the near future the treatment currently used, copper fungicide, will be prohibited in organic cultivation, making it necessary to find an effective alternative. Tomato p lants inoculated in summer 1993 with A. solatìi were sprayed with 14-days old compost extract (CEX) prepared in a ratio of 1:5 compost to water (v/v). A significant reduction in disease index was observed in the CEX treated plants, as well as in the fungicide treatment, as compared with inoculated plants. The yield of CEX treated plants was significantly higher than in the inoculated ones, similarly to the fungicide treated plants. In the summer of 1994, 7 and 14 day old were sprayed to tomato plants. Disease index in plants treated with either CEX or the fungicide was reduced as compared with the inoculated plants. Yield of these treatments was significantly improved; 20.9, 19.9 and 13.9% by fungicide treatment, 14-day old CEX and 7-day old CEX, respectively. Results of this study indicate that spraying the plants compost extracts similarly as to copper fungicide treatments reduced disease index and increased yield.
Note:
Related Files :
Alternaria solani
compost
Lycopersicon esculentum
Yield loss
Show More
Related Content
More details
DOI :
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
21054
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:41
Scientific Publication
Biological control of early blight in tomatoes
487
Leah, T., Plant Pathology, Gilat Experiment Station, Agricultural Research Organization, M. P. Negev 85280, Israel
Biological control of early blight in tomatoes
Early blight is a limiting factor in production of organic tomato in semiarid climate regions. Control of this disease is crucial, because in the near future the treatment currently used, copper fungicide, will be prohibited in organic cultivation, making it necessary to find an effective alternative. Tomato p lants inoculated in summer 1993 with A. solatìi were sprayed with 14-days old compost extract (CEX) prepared in a ratio of 1:5 compost to water (v/v). A significant reduction in disease index was observed in the CEX treated plants, as well as in the fungicide treatment, as compared with inoculated plants. The yield of CEX treated plants was significantly higher than in the inoculated ones, similarly to the fungicide treated plants. In the summer of 1994, 7 and 14 day old were sprayed to tomato plants. Disease index in plants treated with either CEX or the fungicide was reduced as compared with the inoculated plants. Yield of these treatments was significantly improved; 20.9, 19.9 and 13.9% by fungicide treatment, 14-day old CEX and 7-day old CEX, respectively. Results of this study indicate that spraying the plants compost extracts similarly as to copper fungicide treatments reduced disease index and increased yield.
Scientific Publication
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