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Journal of Egyptian Academic Society for Environmental Development. D, Environmental Studies
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Attia, A., Elfiki, I., Zayan, S., Ali, A. (2015). Suppression of root rot and damping off diseases of strawberry plants by using biological control. Journal of Egyptian Academic Society for Environmental Development. D, Environmental Studies, 16(1), 45-47. doi: 10.21608/jades.2015.68415
Ahmad Attia; Ibrahim Abdelmonaem Elfiki; Sahar Bdoo Mahmoud Zayan; Abd Alhaa Mohamed Ali. "Suppression of root rot and damping off diseases of strawberry plants by using biological control". Journal of Egyptian Academic Society for Environmental Development. D, Environmental Studies, 16, 1, 2015, 45-47. doi: 10.21608/jades.2015.68415
Attia, A., Elfiki, I., Zayan, S., Ali, A. (2015). 'Suppression of root rot and damping off diseases of strawberry plants by using biological control', Journal of Egyptian Academic Society for Environmental Development. D, Environmental Studies, 16(1), pp. 45-47. doi: 10.21608/jades.2015.68415
Attia, A., Elfiki, I., Zayan, S., Ali, A. Suppression of root rot and damping off diseases of strawberry plants by using biological control. Journal of Egyptian Academic Society for Environmental Development. D, Environmental Studies, 2015; 16(1): 45-47. doi: 10.21608/jades.2015.68415

Suppression of root rot and damping off diseases of strawberry plants by using biological control

Article 4, Volume 16, Issue 1, 2015, Page 45-47  XML
Document Type: Original Article
DOI: 10.21608/jades.2015.68415
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Authors
Ahmad Attia* 1; Ibrahim Abdelmonaem Elfiki2; Sahar Bdoo Mahmoud Zayan3; Abd Alhaa Mohamed Ali3
1Central Lab. Of Organic Agriculture, ARC, Giza, Egypt
2Plant Pathol. Dept., Fac. of Agric., Benha Univ
3Plant Pathol. Research Inst., Agricultural Research Centre, Giza, Egypt.
Abstract
The present work aimed to reduce using toxic chemicals in agriculture process to produce high quality food in sufficient quantity and to enhance biodiversity system. In addition, an attempt was tried to find out the most suitable bio agent that has the ability to protect strawberry plants against some soil borne fungal diseases.
Several fungi have been reported to attack strawberry roots i.e. Rhizoctonia solani, Fusarium solani, F. oxysporum and Macrophomina phaseolina (Tassi) Goid causing root rot and damping off diseases. These diseases cause economic losses in strawberry and a wide range of other cultivated plants.The most dangerous effects of R. solani occurred due to pre-, post- emergence damping-off and root rot diseases. Isolates of Trichoderma as “Trichoderma harzianum, T. viride, T. hamatum” and commercial preparations “Plant Guard and Blight Stop” were used in this study.
All tested antagonists used as suspension 30×106/ml. reduced the incidence of pre- and post-emergence damping off. T. harzianum, T. viride and Plant Guard were the most effective antagonists as shown by the highest plants survival and the best fruits yield under field conditions. Moreover application of these antagonists recorded the highest increase in total phenols, amount of protein and chlorophyll of strawberry in comparison with the control. On the other hand, T. hamatum and Blight Stop showed the lowest effect. This trend was true during the two successive growing seasons 2014 and 2015.
 
Keywords
Strawberry (Fragarie ananasa); Trichoderma spp; commercial biological control preparations; Rhizoctonia solani Kuehn; Fusarium solani; F. oxysporum; Macrophomina phaseolina
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