Unit 6 - Practice Quiz

1 Which of the following is considered a pre-existing structural defense mechanism in plants?

2 Phytoalexins are low molecular weight antimicrobial compounds that are:

3 The formation of tyloses in xylem vessels is a defense mechanism primarily against which type of pathogen?

4 Which group of Pathogenesis-Related (PR) proteins exhibits -1,3-glucanase activity?

5 The rapid, localized death of plant cells at the site of infection to restrict pathogen spread is known as:

6 Which principle of plant disease management involves preventing the entry of a pathogen into an area where it does not typically exist?

7 Which of the following practices is an example of Eradication?

8 The application of a chemical barrier on the plant surface before the pathogen arrives falls under which principle?

9 Who discovered the Bordeaux mixture in 1885?

10 What is the standard chemical composition of Bordeaux mixture?

11 In the classification of fungicides, Sulfur belongs to which chemical group?

12 Which of the following is a systemic fungicide?

13 Burgundy mixture differs from Bordeaux mixture because it uses which compound instead of lime?

14 Which fungicide is specifically effective against Oomycetes (e.g., Downy mildews, Phytophthora)?

15 Mancozeb is a coordination product of zinc ion and manganese ethylene bisdithiocarbamate. It belongs to which group?

16 The fungicide Carboxin (Vitavax) is primarily used for the control of:

17 Which antibiotic is most commonly used to control bacterial plant diseases?

18 The mode of action of Benzimidazole fungicides (e.g., Benomyl) involves:

19 Triazole fungicides (e.g., Propiconazole) function by inhibiting the biosynthesis of:

20 What does the abbreviation WP stand for in fungicide formulations?

21 Which formulation consists of an active ingredient dissolved in an organic solvent with an emulsifier?

22 Substances added to fungicide sprays to improve spreading, sticking, or wetting are collectively called:

23 Cheshunt compound is a mixture of:

24 Which of the following is a contact (non-systemic) fungicide?

25 The fungicide group Strobilurins (e.g., Azoxystrobin) was originally derived from:

26 In the context of safe handling, LD refers to:

27 What is the PHI (Pre-Harvest Interval)?

28 Which application method is most suitable for controlling seed-borne pathogens?

29 Solarization is a method of soil disinfestation that primarily utilizes:

30 Phenolic compounds like catechol and protocatechuic acid in onion scales provide resistance against:

31 Which of the following is an example of an Organotin fungicide?

32 The process of removing and destroying diseased plant parts (like rogueing) is known as:

33 Antibiotics like Kasugamycin are specifically used to control:

34 Which structural defense involves the deposition of suberin to seal off infected areas?

35 If you need to prepare 500 liters of spray solution with a concentration of 0.2% using a fungicide (100% a.i.), how much fungicide is required?

36 The systemic fungicide Fosetyl-Al is unique because it is translocated:

37 Which color code on a fungicide label indicates 'Extremely Toxic'?

38 The biochemical defense mechanism involving the 'Burst' of reactive oxygen species (ROS) is called:

39 What is the primary mode of action of Sulfur fungicides?

40 Which method of application involves applying the chemical in the furrow at the time of sowing?

41 Which of the following is an example of a Prohibitin (Pre-formed biochemical defense)?

42 In fungicide formulations, 'Slurry' refers to:

43 Chaubatia paste is mainly used for:

44 The active ingredient in Thiram belongs to which chemical group?

45 Which of the following is considered a 'General purpose' or 'Multi-site' inhibitor?

46 The accumulation of Lignin in cell walls in response to infection is a:

47 Validamycin A is an antibiotic primarily used against:

48 When handling fungicides, which personal protective equipment (PPE) is essential to protect the respiratory tract?

49 In the context of chemical combinations, a synergistic effect means:

50 A fungicide dosage is given as 2 kg/ha. If you are using a knapsack sprayer that applies 500 Liters of water per hectare, what is the concentration of the spray fluid?