By radioactive carbon method the age of the fossil can be determined upto:
A.10,000 years
B.15,000 years
C.20,000 years
D.25,000 years
Category: Agriculture Entomology Mcqs
Insecticides approved for aerial spray:
A.Lindane 20 EC
B.Malathion 50 EC
C.Phosphamidon 85 WSC
D.All of the above
During the process of sclerotization which of the following is oxidised in the haemocytes:
A.Arginine
B.Glycene
C.Tyrosine
D.Alanine
Classification of phylum mollusca is based on:
A.Locomotory organs
B.Respiratory organs
C.Digestive organs
D.Reproductive organs
Aphelinus mali has been a successful parasite in controlling:
A.Tobacco caterpiller
B.Apple wolly aphis
C.Maize stem borer
D.Sugarcane top borer
Gughia weevil is a pest of:
A.Paddy
B.Wheat
C.Jowar
D.Maize
Fossil records indicate that insect evolved during:
A.Cambrian period
B.Devonian period
C.Silurian period
D.Precambrian period
In honey bees, when the larvae are fed on regular diet of pollen and honey, which cast is produced:
A.Queen
B.Drones
C.Workers
D.All of the above
DDT is toxic to insect pests by:
A.Contact
B.Ingestion
C.Both (a) and (b)
D.Inhalation
Amongst the following insects which one is monophagous?
A.Spodoptera litura
B.Spilosoma oblicua
C.Bombyx mori
D.Bemicia tabaci
