When some cultivars are resistance and some cultivars are susceptible, when they are infested with same insect biotype such type of resistance is called___________________?

Related Mcqs:

1. A type of resistance in which a series of different cultivars of the same crop are infested with a series of different insect biotype of same species show no differentia intersction, such type of resistance is___________________?

   A. Specific resistance
   B. Horizontal resistance
   C. General resistance
   D. Cross resistance

2. A type of resistance in which a series of different cultivars of the same crop are infested with a series of different insect biotypes of same species show a differentia interaction is known as_________________?

   A. Horizontal resistance
   B. Vertical resistance
   C. Specific resistance
   D. Cross resistance

3. A level of resistance show by a cultivar is similar against all insect biotype such type of resistance is___________________?

   A. Cross resistance
   B. Specific resistance
   C. General resistance
   D. Vertical resistance

4. A level of resistance show by a cultivar is similar against all insect biotype such type of resistance is__________________?

   A. Cross resistance
   B. Specific resistance
   C. General resistance
   D. Vertical resistance

5. The phenomenon off insect resistance to one type of insecticide providing resistance to other insecticides with similar mode of action__________________?

   A. Cross resistance
   B. Specific resistance
   C. General resistance
   D. Horizantal resistance

6. Insect which are found every where are called___________________?

   A. Cosmopolitan insects
   B. Household insects
   C. Store grain
   D. None of the above

7. The ventral selerotized region of insect body is called___________________?

   A. Pleuron
   B. Tergum
   C. Sternum
   D. None of the above

8. The long axis of head is horizontal and in line with insect body, mouth parts directed forward is type of head_______________?

   A. Prognathous
   B. Hypognathous
   C. Opisthognathous
   D. Opis thosynchous

9. Function of epiculticle in insect is__________________?

   A. Rigidly of body parts
   B. Impermeability of water
   C. Prevent evaporation
   D. Impermeability of water and prevent evaporation

10. An insect pest normally present at some time during the growing season that causes the economic damage to a crop is called ?

    A. Key pest
    B. Secondary pest
    C. Occasional pest
    D. Migrant pest