Injuries by insects is / are:

Related Mcqs:

1. Injuries by diseases is / are:

   A. Throughout their life
   B. Seeds decay and seedlings are killed by damping-off
   C. Generally serious in the coniferous nurseries
   D. All of the above

2. The injuries are generally caused by:

   A. Unnecessary haste
   B. Use of improper tools
   C. Pruning during the growing season when the bark is loose
   D. All of the above

3. What are kinds of frost injuries?

   A. Frost rings: are dark brownish lines within the growth rings as a result of injury to the cambium due to the heavy frost
   B. Frost cracks: to the very much low temperature, the cracks appear at the basal portion of old trees
   C. Both (a) & (b)
   D. None of these

4. Frost injuries are:

   A. Heavy frost
   B. Heavy low temperature
   C. Both (a) & (b)
   D. None of these

5. Insects and disease of poplars/are:

   A. Like every other plant
   B. Also susceptible to may diseases and damages by bacteria, fungi, insects and wild animals
   C. Almost all parts of the tree i.e., stem, leaves, branches and roots etc., are affected by one disease of the other.
   D. Poplars have met quite of few other adversaries in different parts of Pakistan
   E. All of the above

6. When peacock eats snakes which eat insects thriving on green plants, peacock is:

   A. A primary consumer
   B. A primary decomposer
   C. Final decomposer
   D. The apex of the food pyramid

7. Preventive measures from part of the normal routine of forest administration, while remedial measures are called for in cases of:

   A. Occasional
   B. Unexpected damage
   C. Where the preventive measures has broken down
   D. All of the above

8. Protection against animals’ is / are:

   A. Domestic animals
   B. Wild animals
   C. Both (a) & (b)
   D. None of these

9. Gypsonoma bapalosarca Meyr. (Tortricidae-Lepidopaters) is / are:

   A. The larvae stituch two or more leaves together and feed in between
   B. The distribution is countrywide.
   C. The pest has 7 generations in a year
   D. It hibernates in winter as pupae and become active again in April/May
   E. All of the above

10. Melanophila picta Pall: (Burpreastidae – Coleoptera) is / are:

    A. This is flat headed stem borer
    B. The grubs are white and not more than 2.3 cm in length
    C. Both (a) & (b)
    D. None of these