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•Plant protection has been accepted as a broad area of research and technology at the

national level by the Indian Council Agricultural Research, New Delhi; and Plant

Pathology is an important discipline of Plant Protection.

What is Plant Pathology

• Plant Pathology, also known as Phytopathology is a branch of agricultural botany. which deals with the study of diseases in plants - their causes, etiology, epidemiology, resulting losses and management.

पादप- रोगविज्ञान, जिसे फाइटोपैथोलॉजी के रूप में भी जाना जाता है, कृषि वनस्पति विज्ञान की एक शाखा है जो पौधों में रोगों के कारण, एटियलजि, महामारी, वा उनके द्वारा हुवे नुकसान और इनके प्रबंधन का अध्ययन करती है।

Relation to other Sciences

•Plant pathology is related to many other sciences such as virology, mycology,

bacteriology, microbiology, physiology, chemistry, genetics, biotechnology etc., all of

which provide the knowledge required for the correct diagnosis and management of

plant diseases.

पादप- रोगविज्ञान वायरोलॉजी, माइकोलॉजी, बैक्टीरियोलॉजी, माइक्रोबायोलॉजी, शरीर विज्ञान, रसायन विज्ञान, आनुवंशिकी, जैव प्रौद्योगिकी इत्यादि जैसे कई अन्य विज्ञानों से संबंधित है, जिनके द्वारा पौधों की बीमारियों के सही निदान और प्रबंधन के लिए आवश्यक ज्ञान प्रदान होगा।

Objectives of Plant Pathology

To study living, non-living and environmental causes of diseases or disorders of the plants.
To study the mechanism of plant disease development.
To study interaction between host/susceptible and the pathogens.
To develop systems of management of plant diseases and reducing losses caused by them.
जीवों के रोगों या विकारों के जीवत, गैर-जीवित और पर्यावरणीय कारणों का अध्ययन करने के लिए।
पौधों की बीमारी के विकास के तंत्र का अध्ययन करने के लिए।
होस्ट/अतिसंवेदनशील और रोगजनकों के बीच पारस्परिक क्रिया का अध्ययन करने के लिए।
पौधों की बीमारियों के प्रबंधन की प्रणाली विकसित करना और इससे होने वाले नुकसान को कम करना।

To protect plant form harmful pathogens.
Plant pathology helps to produce disease-resistant seeds of different crops.
Plant Pathology has information on the disease cycle through which we can protect our crops from lethal stages of disease. And reduce the loss that occurs due to disease.
Aid to check or prevent the scatter or dispersion of disease and pathogen.
Plant pathology helps to Make rule and regulations for plant quarantine.
पौधों की हानिकारक रोगजनक से रक्षा के लिए हैं।
पादप- रोगविज्ञान विभिन्न फसलों के रोग प्रतिरोधी बीजों का उत्पादन करने में मदद करती है।
पादप- रोगविज्ञान रोग चक्र की जानकारी रखता है जिससे हम अपनी फसलों को रोग की घातक अवस्था से बचा सकते हैं। और रोग के कारण होने वाले नुकसान को कम कर सकते है।
बीमारी और रोगज़नक़ों के फैलाव को रोकने या रोकने में सहायाक।
प्लांट पैथोलॉजी प्लांट संगरोध के लिए नियम और कानून बनाने में मदद करती है।

Father of Plant Pathology

Modern Plant Pathology - Anton de Bray
Father of Forest Pathology - Robert Hartig
Father of Tropical Plant Pathology - H.M. Ward

History

Dutch worker Anton von Leeuwenhoek developed the first microscope. - 1675
Italian botanist P. A. Micheli proposed fungi comes from spores; Father of Mycology. - 1729
French botanist Tillet published a paper on bunt or stinking smut of wheat; discovered
bunt is a disease of wheat. - 1755
French scientist I. B. Prevost showed bunt of wheat is a fungus and showed evidence that a disease is caused by a microorganism. - 1807
Irish Potato famine due to Phytophthora infestans caused the starvation of millions and
the immigration of 1.5 million people. - 1845
J. G. Kuhn published the first textbook in Plant Pathology – The Diseases of Cultivated
Crops, their Causes and their Control. - 1858
Anton de Bary (Germany) worked out the life cycle of potato late blight and first to prove experimentally Phytophthora infestans is the cause of potato late blight. He proved that fungi are causes but not the results of diseases. He is the Father of Modern Plant Pathology. - 1861
Anton de Bary reported the heteroecious nature of wheat stem rust. - 1865
H.M. Ward worked out the life cycle of coffee leaf rust. He is called as Father of Tropical Plant Pathology. -1881
Robert Hartig published a textbook -Diseases of Trees. He is called as "Father of Forest Pathology". - 1882
E.J. Butler published a book on Fungi and Diseases in Plants; he made an exhaustive study of Indian fungi and the diseases caused by them. He is called the Father of Modern Plant Pathology in India; He joined as the first Director of the Imperial Bureau of Mycology ( Commonwealth Mycological Institute, CMI) now CAB International Mycological Institute in Kew, England in 1920. He began the journal Review of Applied Mycology; with S.G. Jones he wrote, 'Plant Pathology' in 1949. - 1918

Plant Bacteriology

Anton von Leeuwenhoek first observed bacteria. – 1683
Robert Koch of Germany described the theory called "Koch's postulates." He established the principles of pure culture technique. – 1876
Adolf Mayer described a disease of tobacco called mosaikkranheit (tobacco mosaic). Adolf Mayer demonstrated the sap transmission of Tobacco Mosaic Virus disease. – 1886