The use of parasites and predators to control weeds is referred to as
Biological control
Chemical control
Cultural control
Mechanical control
Correct answer is A
No explanation has been provided for this answer.
The most effective method of controlling viral diseases in crops is by
Spraying with bordeaux mixture
Removing and burning affected crops
Practicing crop rotation
Planting at recommended spacing
Correct answer is B
No explanation has been provided for this answer.
Quarantine regulations are established so as to
Allow the importation of diseased plant and animal materials
Prevent the introduction foreign diseases into country
Assist farmers to grow foreign crops
Facilitates the rapid spread of foreign diseases
Correct answer is B
No explanation has been provided for this answer.
Which of the following insects transmits swollen shoot virus of Cocoa?
Stem borer
Mealy bug
White fly
Capsid
Correct answer is B
No explanation has been provided for this answer.
Pure line of crops are produced through continuous
Selection
Hybridization
Cross breeding
Inbreeding
Correct answer is D
No explanation has been provided for this answer.