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.Management Sciences
Category: Entomology
When some cultivars are resistance and some cultivars are susceptible, when they are infested with same insect biotype such type of resistance is called___________________?
A. General resistance
B. Specific resistance
C. Cross resistance
D. Horizontal resistance
The phenomenon off insect resistance to one type of insecticide providing resistance to other insecticides with similar mode of action__________________?
A. Cross resistance
B. Specific resistance
C. General resistance
D. Horizantal resistance
Larvae with both thoracic and abdominal legs is_________________?
A. Cruciform
B. carabifrom
C. Vermiform
D. Platy form
The parasites which capable of parasitizing a considerable number of host species is called____________________?
A. Polyhagous parasites
B. oligophagous parasites
C. Facultative parasites
D. Transitory parasites
Termite workers are_________________?
A. May be a non reproductive male or non reproductive female
B. A non reproductive male
C. A non reproductive female
D. None of above
Grasshopper and cockroaches have type of wings is____________________?
A. Tegmina
B. Hemelytra
C. Stripy
D. hemelgtra
The last segment of insect which bears a structure which help during mating is_________________?
A. Paraproct
B. Subgenital plate
C. Acron
D. Somites
Difference between workers and drones _____________________?
A. Drones are female while workers are sterile
B. Drones are male while workers are sterile
C. Drones are sterile while workers are sterile
D. None of the above
What is DDT__________________?
A. Dichloro-diphenyl,trichloro,ethane
B. Dimethory diphenyl,trichloro,ethane
C. Dichloro diphenyl teracholoride
D. None of the Above
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