Practice Basics of Plant Pathology Questions and Answers

• What bacterial disease in ginger leads to water-soaked patches on the collar region, causing leaves to become flaccid with intense yellowish bronze color, ...
• Which plant disease is caused by Hemileia vastatrix?
• Which term refers to the time elapsing between penetration and the completion of infection, i.e., the development of disease symptoms?
• When a pathogen kills the host tissue before penetrating and then lives saprophytically, what is it called?
• What method involves the use of clear polythene film over moist soil during sunny summer days to increase soil temperature and inactivate many soil-borne p...
• Which type of host(s) is not necessary for completing the life cycle of a pathogen but aids in its survival during unfavorable periods?
• What type of resistance is effective against all races of a pathogen but is of permanent nature?
• What term is used to describe the process in bacteria where cells are transformed genetically by absorbing genetic material released during the rupture of ...
• Which disease in Bengal Gram displays round or elongated lesions on leaflets with brown spots, surrounded by a brown margin, and pycnidia arranged in conce...
• Which disease in cotton exhibits bronzing of veins, interveinal chlorosis, and yellowing of leaves, with characteristic drying of leaf margins and intervei...
• What are the primary fruiting bodies formed in the sexual reproduction of fungi?
• This Structure in fungi is associated with asexual fruiting bodies and is characterized as a globose or flask-shaped fruiting body producing conidia?
• Disease that occurs irregularly and in relatively few instances, and may be endemic in one region and epidemic in another?
• This disease is characterized by purple-colored spindle-shaped streaks on the pseudostem of banana plants?
• Karnal bunt of wheat, a disease that partially converts wheat grains into a mass of black, foul-smelling spores and has significant implications for India'...
• Which term describes a plant disease management strategy in which two or more complementary control methods, such as resistant varieties, cultural practice...
• A cotton farmer notices that his crop, which was growing well until the flowering stage, suddenly begins showing wilting of individual branches, followed b...
• A rice farmer observes that his crop, planted in a field with standing water, develops small, water-soaked, translucent lesions on the leaf blades that qui...
• Which mechanism of fungicide resistance development in plant pathogen populations occurs when repeated, exclusive use of a single-site-mode-of-action fungi...
• Which technique of plant disease diagnosis uses specific antibodies to detect the presence of a particular plant pathogen, such as a virus, in infected pla...
• Which mechanism allows a plant virus to eventually evade a resistant plant variety's defence, occurring when the virus population accumulates mutations in ...
• Which term describes a combination of two or more chemically unrelated fungicides applied together specifically to delay the development of resistance in a...
• Late blight of potato — a historically devastating disease associated with the Irish famine — is favoured by which specific weather conditions, and its...
• Black stem rust of wheat, a highly destructive fungal disease causing severe yield losses, is caused by which pathogen, and which plant serves as its alter...
• Loose smut of wheat, caused by Ustilago tritici, is distinctive among cereal smuts because of its unusual mode of infection. Which statement correctly desc...
• A citrus orchard owner notices raised, corky, wart-like lesions appearing on the leaves, twigs, and fruit surface of the trees, significantly reducing the ...
• A particular bacterial disease is known to cause a scorched, blackened appearance of blossoms, young shoots, and branches in apple and pear orchards, givin...
• A particular mycoplasma-associated disease of rice causes noticeable yellowing along with severe stunting of the affected plants, and is specifically trans...
• A disease that occurs constantly, in a mild to moderate form, year after year in a particular locality is called:
• The Irish famine of 1845, caused by late blight of potato, was due to the pathogen:
• A particular seed treatment method, originally developed by the scientist Jensen in the year 1887, and has traditionally been used to control loose smut di...
• The Irish famine of 1845, caused by late blight of potato, was due to the pathogen:
• Which disease of wheat is commonly referred to as the 'Killer disease' due to its historically devastating impact on yield?
• Wart disease of potato is a notified fungal disease that, unlike many other potato diseases, has a very restricted geographical distribution within India, ...
• Club root disease is a serious soil-borne disease affecting cauliflower and other members of the crucifer family, causing abnormal swelling and distortion ...
• A disease of sugarcane, characterized by a pineapple-like smell emanating from infected setts and has a very distinctive symptom associated with infected p...
• The history of plant pathology as a scientific discipline includes several landmark 'firsts'. Among bacterial plant diseases specifically, which one holds ...
• Rust fungi produce several distinct spore types during their complex life cycle, each serving a different biological function. The repeating spore stage re...
• A disease, also known as green ear disease in one particular crop, is a serious fungal disease of pearl millet (bajra) whose severity is known to be suppre...
• Damping-off disease, commonly affecting seedlings in nursery beds and causing sudden collapse and death, is primarily caused by which group of soil-borne p...