The economic injury level for white fly is________________?

Related Mcqs:

1. The factors which induces disease outbreak is________________?

   A. High temperature
   B. High humidity
   C. Susceptible varieties
   D. All the above

2. The granular formulation are commonly applied to control_______________?

   A. Jassids and thrips
   B. Leaf minors
   C. Fruit and stem borers
   D. Whitefly

3. The larval stage of flies (Diptera) is known as_________________?

   A. Grub
   B. Cocoon
   C. Maggot
   D. Worm

4. Viral disease can be controlled by __________________?

   A. Fungicides
   B. Cultural practices
   C. Cultural practices and growing resistant varieties
   D. Can not be controlled

5. Malpighian tubules are organs of_________________?

   A. Excretion
   B. Digestion
   C. Secretion
   D. None of the above

6. Disease are transmitted through_________________?

   A. Seeds
   B. Agricultural machinery and implements
   C. Winds, insects
   D. All the above

7. Trachea in insects are the organ of___________________?

   A. Digestion
   B. Respiration
   C. Excretion
   D. Secretion

8. The major viral disease of cotton is____________________?

   A. Cotton boll rot virus
   B. Cotton stem crinkle virus
   C. Cotton leaf curl virus
   D. None of the above

9. The insecticides with longest residual effect belongs to___________________?

   A. Pyrethroid
   B. Carbamates
   C. Organo-chlorine
   D. Organio-phosphate

10. __________ is gram-positive?

    A. Xanthomonas
    B. Corynebacterium
    C. Pseudomonas
    D. Erwinia

    Submitted by: hafsa