Free Silviculture MCQs with Answers
312 Silviculture MCQs from Forestry, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Last updated
312 questions · page 7 of 16
- A. 10? - 15?C
- B. 5? - 10?C
- C. 20? - 25?C
- D. 30? - 40?C
Explanation: In the upper Gangetic plains, seedling growth is generally best at a moderate temperature of about 20–25°C.
Correct answer: 20? - 25?C- A. 40?C
- B. 60?C
- C. 65?C
- D. 80?C
Explanation: Rhus seeds are notably heat-tolerant and can endure temperatures up to about 80°C, an adaptation that helps them persist after fire.
Correct answer: 80?C- A. Longer viability
- B. In situ seed germination
- C. early cone separation
- D. All these characters
Explanation: Serotinous cones remain closed on the tree and retain viable seeds, often until heat from fire opens them.
Correct answer: Longer viability- A. Borne on the leaves
- B. Present on the main stem
- C. Borne underground
- D. Suspended from the branches
Explanation: A lignotuber is a woody swelling located at or below the ground, containing dormant buds and stored reserves that can regenerate shoots…
Correct answer: Borne underground- A. The pith borer of poplars
- B. Mostly found in KPK, Azad Kashmir and Lahore
- C. The eggs are laid in eye-shaped slits made in young branches by ovipositing adult
- D. All of the above
Explanation: Apriona cinerea is the poplar pith borer, reported from Khyber Pakhtunkhwa, Azad Kashmir and Lahore.
Correct answer: All of the above- A. Sparay Sevin 85% in the dose of 0.1%
- B. Sparay Sevin 75% in the dose of 0.1%
- C. Sparay Sevin 65% in the dose of 0.1%
- D. None of these
Explanation: Plagiologera versicolor is controlled by spraying Sevin 85% at a 0.1% concentration.
Correct answer: Sparay Sevin 85% in the dose of 0.1%- A. Both (a) & (b)
- B. The grubs are white and not more than 2.3 cm in length
- C. This is flat headed stem borer
- D. None of these
Explanation: Melanophila picta is a flat-headed stem borer, and its grubs are white and reach roughly 2.3 cm in length.
Correct answer: Both (a) & (b)- A. Stem borer of serious nature
- B. It is found in KPK, Boluchistan and some parts of Punjab
- C. All of the above
- D. The galleries run under the bark
Explanation: Aeolesthes berta is a serious stem borer found in parts of Khyber Pakhtunkhwa, Balochistan and Punjab.
Correct answer: All of the above- A. None of these
- B. Spraying of nurseries and younger poplar plantations with 1 lbs of Sevin 75% S.P. In 50 gallons of water per acre
- C. Spraying of nurseries and younger poplar plantations with 2 lbs of Sevin 95% S.P. In 200 gallons of water per acre
- D. Spraying of nurseries and younger poplar plantations with 2lbs. Of Sevin 85% S.P. In 100 gallons of water per acre
Explanation: Cerura wisei is controlled in nurseries and young poplar plantations with 2 lb of Sevin 85% SP in 100 gallons of water per acre.
Correct answer: Spraying of nurseries and younger poplar plantations with 2lbs. Of Sevin 85% S.P. In 100 gallons of water per acre- A. Spray dimecorn in the does of 0.05% or at the rate of 1 lb in 200 gallons of water
- B. Spray dimecorn in the does of 0.04% or at the rate of 1 lb in 300 gallons of water
- C. Spray dimecorn in the does of 0.03% or at the rate of 1 lb in 100 gallons of water
- D. None of these
Explanation: Dimecron is recommended at 0.05%, commonly stated as about 1 lb in 200 gallons of water for controlling this pest.
Correct answer: Spray dimecorn in the does of 0.05% or at the rate of 1 lb in 200 gallons of water- A. Like every other plant
- B. Also susceptible to may diseases and damages by bacteria, fungi, insects and wild animals
- C. All of the above
- D. Poplars have met quite of few other adversaries in different parts of Pakistan
- E. Almost all parts of the tree i.e., stem, leaves, branches and roots etc., are affected by one disease of the other.
Explanation: Poplars are vulnerable to several diseases and damaging agents, including bacteria, fungi, insects and wild animals, with different parts…
Correct answer: All of the above- A. All of the above
- 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. The larvae stituch two or more leaves together and feed in between
Explanation: This poplar leaf-tying tortricid is reported throughout the country, completes about seven generations annually and survives winter as a…
Correct answer: All of the above- A. Both high and low precipitation in the form of rain is harmful for the forest crop
- B. All of the above
- C. Streams get flooded and wash away wooded land tree along the river banks are uprooted during floods
- D. A large chunk of forest area may be lost as a result of excessive rainfall
Explanation: Both excessive and insufficient rainfall can damage forest crops, while floods may erode forest land and uproot trees along streams and…
Correct answer: All of the above- A. An essential part of the forest ecosystem
- B. Some are beneficial; quite a few are serious pests of trees and wood products
- C. All of the above
- D. A bakain defoliator and Margaronia phloalis a defoliator of mulberry are serious pests of other tree species grown in forest plantations
- E. Tonica inviferana, a semal shoot borer, Ascotis imparata,
Explanation: Insects are normal components of forest ecosystems, but some become serious pests of trees and wood products; the listed shoot borer and…
Correct answer: All of the above- A. By freezing or chilling to death young weedy plants or young organs of plants
- B. By splitting the stems of trees
- C. By causing canker in stems of trees
- D. All of the above
- E. By uprooting young plants
Explanation: Freezing can kill young plants or organs, temperature stress can split stems, diseases can produce stem cankers, and floods or similar…
Correct answer: All of the above- A. Temperature
- B. All of the above
- C. Rain damage
- D. Frost damage
Explanation: Temperature injury includes frost damage, and excessive or deficient rainfall also harms forest crops.
Correct answer: All of the above- A. Destruction of tender seeding which are eaten together with the grass amidst which they may occur
- B. Mechanical damage to young growth and saplings through the passage of animals
- C. All of the above
- D. Destruction of fences, drains, boundary posts, etc.
- E. Dislodging of soil on steep slopes causing erosion
Explanation: Browsers damage forests by eating seedlings and other tender vegetation, trampling young growth, loosening soil on slopes, and damaging…
Correct answer: All of the above- A. Grazers
- B. Browsers
- C. None of these
- D. Both (a) & (b)
Explanation: Domestic animals entering forests are commonly divided according to feeding habit into grazers, which feed mainly on grasses, and…
Correct answer: Both (a) & (b)- A. Both (a) & (b)
- B. Camels and goats are browsers
- C. Sheep and grazers
- D. None of these
Explanation: Cattle, buffaloes, horses and generally sheep are grazers, while camels and goats are browsers that commonly feed on shrubs and woody…
Correct answer: Both (a) & (b)- A. Domestic animals
- B. Wild animals
- C. Both (a) & (b)
- D. None of these
Explanation: Forest protection from animal damage must address both domestic livestock and wild animals.
Correct answer: Both (a) & (b)