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biology 12 plant diseases
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Q.1. Which virus causes mosaic disease of tobacco in plants?
Q.2. In which viral disease leaves of plant get shrinked, become small and chlorophyll of leaves get destroyed?
Q.3. Which plant disease is caused by banana virus?
Q.4. In which viral disease plants become dwarf and all the leaves get accumulated like a rose on the branch?
Q.5. In which bacterial disease brown ring is formed on the xylem of plant?
Q.6. Which bacterial disease in plants is also known as ring disease?
Q.7. Which bacteria is responsible for plant disease known as wilt of potato?
Q.8. Which bacterial plant disease affects the conduction system of plant?
Q.9. Which bacteria causes plant disease known as black arm of cotton?
Q.10. In which bacterial plant disease a water body (brown) is formed on the leaves?
Q.11. Which bacteria causes plant disease known as bacterial blight of rice?
Q.12. In which bacterial plant disease yellow greenish spot is seen on both sides of leaves and vascular bundles get blocked due to bacterial growth?
Q.13. Which bacteria causes plant disease known as citrus canker?
Q.14. Which bacteria causes plant disease known as tundu disease of wheat?
Q.15. In which bacterial plant disease lower parts of the leaves are faded and turned?


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