INTEGRATED CONTROL OF DOWNY MILDEW DISEASE IN GRAPE | ||||
Menoufia Journal of Plant Protection | ||||
Article 6, Volume 3, Issue 2, March and April 2018, Page 85-86 PDF (310.99 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/mjapam.2018.123593 | ||||
View on SCiNiTO | ||||
Authors | ||||
M. M. Ammar1; G. A. Amer1; A. M. Abdel- All2 | ||||
1Prof. of Plant Pathology, Fac. of Agric., Menoufia Univ. | ||||
2Lecturer of Plant Physiology, Fac. of Agric., Menoufia Univ. | ||||
Abstract | ||||
The present study was conducted at 2015 and 2016 to fined out the best ecofriendly method(s) to control downy mildew disease of grapes ( Plasmopara viticola Berk & Curt) . Water extracts of castor, oleander and mintha significantly reduced the disease incidence , increased chlorophyll and carotein contents , improved plant water relations and increased yield production , than the non-treated control plants. - The same observations were obtained using emulsion oils of castor, thyme and mintha . Castor water extract and emulsion oils showed the best results . - Aplication of Bacillus subtilis alone or in combination with Trichoderma harzianum (5g/l + 2.5m/l) respectively gave much better results of disease managment, physiological aspects and yield components . - Integration of the biocontrol agents with plant extracts and /or plant oils gave good results , and the best was obtained when thyme oil was integrated with Bacillus subtilis (10⁶ cfu). Individual application of the recommended fungicides severly reduced the disease severity of infection, improved the physiological statues and significantly increased yield production of both Crimson and Flame grape cultivars. | ||||
Keywords | ||||
Plant extracts; Plant oils; Downy mildew; Plasmopara viticola; photosynthetic pigments; Water relations and Yied and its components | ||||
Statistics Article View: 124 PDF Download: 270 |
||||