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Botany MCQS[NEET-2021 to 2022]-Plant Pathology - II

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1. Pectinolytic enzymes of plant pathogens play a major role during pathogenesis in which diseases?




2. Phycomycetes belong to which of the following?




3. Which of the following disease caused by Phyllactinis?




4. Phytophthera belongs to which family?




5. With regard to nutrition Erysiphe is




6. Plant parasitic nematodes posses how many part oesophagus?




7. Which among the following Plant pathogenic viroids contains?




8. (With Phase) is common in which ?




9. Which among the following caused Powdery mildew disease?




10. Which of the following is belong to the family of Powdery mildew fungi?




11. Once the pathogen has established in an area, steps taken to remove or destroy is known as?




12. Oil from American elm seed contains 55 per cent capric acid toxic to Ceratocystis uimi the pathogen causing the famous _____ disease




13. Nematodes are also called as?




14. Nematode genus Hoplolaimus Daday was first recorded in _____ from an island in the Paraguay river




15. Plant overgrowth due to increase in size of cell of the which of the following tissue ?




16. Mycoplasma is sensitive to which of the following ?




17. Mycoplasma disease of plant was first reported by which of the following ?




18. Mycology is the study of?




19. Most of the plant parasitic nematodes belong to which order?




20. Meloidogyne belongs to which group?




21. Loose smut of wheat is a disease called as?




22. Loose smut of wheat can be effectively controlled by




23. Acervuli is _____ shaped




24. Linseed rust is caused by ?




25. Micro organisms were first observed by?




26. Microbiology is the science of which we study?




27. Modification of floral parts into leafy structures by pathogenic infection called?




28. Yellow ear rot of wheat is caused by?




29. Most effective fungicide against powdery mildew disease?




30. Irish famine was caused due to




31. Late blight of potato is caused by




32. Leaf roll of potato is caused by




33. Leaf roll of potato is transmitted by?




34. Levillula is a




35. Lichen is an association between?




36. Yellow pigment in the culture is produced by?




37. Anthracnose of Grape is also known as?




38. In which rust pustules are arranged in end-to-end manner and forming strip?




39. Choose the wrong combination?




40. Fusarium belong to which order?




41. Gelatin plate technique was discovered by?




42. Genus Radopholus of nematode was first described in 1893 on the basis of a male specimen obtained from necrotic roots of _____ growing in Fiji Islands?




43. Heterocious nature of rust means




44. Heterodera belongs to super family?




45. Wrong information about Powdery mildew is




46. How much quantity of nematicide is used to control the nematodes in one hectare are?




47. In bacterial brown rot and wilt of potato the amount of _____ produced by pathogens are proportional to severity of symptoms




48. In fermentation industry, pasteurization is done at _____ temperature




49. Dry root rot of legumes and beans is caused by?




50. Exclusion of plant disease by legislation is known as