Hopper burn’ appears in:
A.Wheat
B.Sugarcane
C.Sorghum
D.Rice
A.Wheat
B.Sugarcane
C.Sorghum
D.Rice
A.Aldrin
B.Endrin
C.Lime sulphur
D.None of these
A.Heterohobditis
B.Steinemama
C.Neoplectana
D.Howardula
A.Apanteles erionotae
B.Encarsia formosa
C.Both of them
D.None of them
A.Lower than economic injury level (EIL)
B.Equal to EIL
C.More than EIL
D.Reached when severe damage is done
A.Hormone
B.Pheromone
C.Freeding deterent
D.Antibiosis
A.Gram
B.Variety of crops
C.Tomato
D.Cotton
A.Diplura
B.hysanura
C.Collembolad
D.Protura
A.Gall fly
B.Green leafhopper
C.Yellow stem borer
D.Stink bug
A.Thickness of the cuticle
B.Chemical nature of the cuticle
C.Components of the cuticle
D.Nature of the carriers and solvents