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Chauhan, Praneet
- Role of Modelling in Plant Disease Management
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1 Department of Plant Pathology, Dr. Y.S. Parmar University of Horticulture and Forestry, Nauni, Solan (H.P.), IN
1 Department of Plant Pathology, Dr. Y.S. Parmar University of Horticulture and Forestry, Nauni, Solan (H.P.), IN
Source
International Journal of Plant Protection, Vol 11, No 1 (2018), Pagination: 124-134Abstract
Indian’s economy is agricultural based. Agriculture provides maximum employment in the country. Unfortunately, crop production is heavily affected by the pests and diseases. In addition to refinement in the existing management practices, there is a need for simulation models to assess the potential of emerging pathogens for a given crop production system and also shift in pathogen populations/fitness that may demand modifications in current production systems. Forecasting models which allows investigating multiple scenarios and interactions simultaneously has become most important for disease prediction, impact assessment and application of disease management measures. Many weather driven epidemiological models have been developed and used to predict plant disease epidemics under variable climate. Most forecasting models are meant for tactical and strategic decisions. Similarly, the Mill’s Table also had been modified for Apple scab epidemic under H.P conditions. Moreover, remote sensing and image analysis have been used in plant diseases epidemiology to forecast the plant diseases. These epidemiological tools have been designed to help the farmers in enhancing the efficiency and adequacy of disease management. A complete knowledge of these epidemiological tools provide quick, fast and accurate prediction of disease and helps in timely disease control.Keywords
Epidemic, Forecasting, Modelling, Simulation.
References
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- First Report of Microstroma juglandis Causing Downy Leaf Spot or White Mould on Celtis australis from Himachal Pradesh, India
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Authors
Affiliations
1 Department of Plant Pathology, Dr. Y. S. Parmar University of Horticulture and Forestry, Nauni, Solan (H.P.), IN
1 Department of Plant Pathology, Dr. Y. S. Parmar University of Horticulture and Forestry, Nauni, Solan (H.P.), IN
Source
International Journal of Plant Protection, Vol 11, No 2 (2018), Pagination: 161-163Abstract
Microstroma sp. collected on living leaves of Celtis australis L. (Cannabaceae ) from Himachal Pradesh, India is a new host record. Symptoms of the disease on leaves appeared in the form of small, circular to irregular, white coloured spots or mouldy growth surrounded by a yellow zone. The fungus isolated was identified as Microstroma juglandis on the basis of cultural appearance and morphological characters. The pathogen was able to induce the characteristic symptoms of downy leaf spot or white mould within 14-16 days after inoculation.Keywords
Celtis Australis, Downy Leaf Spot, Microstroma Sp.References
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- Disease Status of Alternaria Blotch of Apple in Himachal Pradesh, India
Abstract Views :245 |
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Authors
Affiliations
1 Department of Plant Pathology, Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, (H.P.), IN
1 Department of Plant Pathology, Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, (H.P.), IN
Source
International Journal of Agricultural Sciences, Vol 15, No 1 (2019), Pagination: 56-59Abstract
Apple is one of the most important fruit crops of Himachal Pradesh and the economy of the state primarily depends upon this remunerative crop. Alternaria alternata f.sp. mali causes huge loss by infecting leaves and fruits. It infects mainly leaves (upto 50 to 60%) but sometimes fruits may also get infected. Leaf spot infection started early in the season which leads to premature defoliation. The fungus causes leaf spots which enlarge in zonate, circular or crescent shaped rings. Every season the crop is suffered from Alternaria leaf blotch in wet climate and has been appearing in moderate to severe form in different apple growing areas of Shimla district of Himachal Pradesh. The disease incidence and disease severity varied between 11.00 to 50.00 per cent and 6.20 to 25.90 per cent, respectively for two consecutive years 2015 and 2016.Keywords
Apple, Blotch, Disease Prevalence, Premature Leaf Fall.References
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