Plagiologera versicolor Laich: (Chrysomelidae – Coleoptera) control is:
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
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
A.The growing of forests is a very slow process but constant
B.Many years to accomplish
C.If the efforts of the forester are not to be wasted
D.It is necessary that care should be taken to protect the forest from all forms of damage
E.All of the above
A.Injury to trees
B.Injury to young growth and regeneration
C.Injury to the soil
D.Injury to wildlife
E.All of the above
A.Protection against man
B.Protection against animals
C.Protection against injurious plants
D.Protection against injurious climatic factors
E.All of the above
A.Occasional
B.Unexpected damage
C.Where the preventive measures has broken down
D.All of the above
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
A.Spraying of nurseries and younger poplar plantations with 2lbs. Of Sevin 85% S.P. In 100 gallons of water per acre
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.None of these
A.Both high and low precipitation in the form of rain is harmful for the forest crop
B.A large chunk of forest area may be lost as a result of excessive rainfall
C.Streams get flooded and wash away wooded land tree along the river banks are uprooted during floods
D.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.Tonica inviferana, a semal shoot borer, Ascotis imparata,
D.A bakain defoliator and Margaronia phloalis a defoliator of mulberry are serious pests of other tree species grown in forest plantations
E.All of the above
A.Application of water
B.Application of earth
C.Beating out
D.Counter-firing
E.All of the above