Unit 4 - Practice Quiz

1 Which of the following represents the correct components of the classic Disease Triangle?

2 When the factor of Time is added to the disease triangle, the model is transformed into a:

3 The study of disease development in plant populations is known as:

4 In the context of the Disease Pyramid, which fifth component is often added to the tetrahedron to account for agricultural impact?

5 Who is considered the 'Father of Plant Disease Epidemiology' for his work on the analysis of epidemics?

6 A disease that completes only one infection cycle per crop season is called:

7 Which mathematical model best describes the progress of a polycyclic disease?

8 In the equation for simple interest disease , what does represent?

9 Which environmental factor is generally the most critical for spore germination and penetration of fungal pathogens?

10 Club root of crucifers () is favored by which soil condition?

11 Potato scab () is generally more severe in:

12 The time interval between the infection of the host and the appearance of the first symptom is known as:

13 The period between infection and the production of new inoculum (spores) is called the:

14 The total energy of growth of a fungal parasite per unit area of the host is termed:

15 Which of the following is an example of autonomous (active) dissemination of a pathogen?

16 Dissemination of plant pathogens by wind is technically known as:

17 The 'Puffing' mechanism for spore liberation is characteristic of:

18 Which pathogen type primarily relies on hydrochory (water) for dissemination?

19 A pathogen that survives on dead organic matter in the soil is called a:

20 Thick-walled, resting spores formed by Fusarium species for survival are called:

21 The compact mass of hardened fungal mycelium used for long-term survival is a:

22 Which spore stage of the Wheat Stem Rust fungus () is responsible for long-distance wind dispersal?

23 In the context of survival, a plant that harbors the pathogen when the main crop is absent is called a:

24 An Alternate host is required for completion of the life cycle of:

25 Which of the following refers to a disease that is constantly present in a specific locality year after year?

26 What is the primary survival structure for the Late Blight pathogen () between seasons?

27 Viruses are most commonly dispersed in nature by:

28 Soil inhabitants are pathogens that:

29 Soil invaders (Root inhabiting fungi) are characterized by:

30 Which factor creates an 'Epidemic' (Epiphytotic)?

31 The parameter AUDPC stands for:

32 High nitrogen fertilization generally makes plants:

33 Which of the following is a method of passive liberation of spores?

34 A pathogen that produces inoculum that can cause multiple secondary infections within a season is causing a:

35 Temperature affects disease development primarily by influencing:

36 The dormant survival structure of the powdery mildew pathogen is:

37 Bacteria primarily enter plants through:

38 In the logistics model , the term represents:

39 Which type of dispersal is termed Anthropochory?

40 Dodder ( spp.) is transmitted primarily by:

41 The sexual resting spores of Oomycetes (like Pythium) are called:

42 High soil moisture generally suppresses which of the following diseases?

43 Which spore type is referred to as the 'Repeating Spore' in the rust life cycle?

44 The survival of pathogens in or on seeds is termed:

45 Which of the following describes the spread of a disease across a continent or worldwide?

46 In the infection chain, the primary inoculum initiates:

47 Etiolation (pale, weak growth) due to lack of light usually makes plants:

48 The concept of 'Gene-for-Gene' hypothesis, relevant to host-pathogen specificity, was proposed by:

49 A pathogen that has a wide host range is termed:

50 Which environmental factor determines the geographic distribution of a disease?