Plant quarantine was introduced to
...Plant quarantine was introduced to
Control incoming diseases and pests
Control the cost of production
Maintain genetic purity of crops
Encourage breding of new varieties
Correct answer is A
No explanation has been provided for this answer.
The gestation period of a cow is approximately ...
A good drought bull should not have ...
When sugarcane is allowed to flower before harvesting, the ...
A common means of aerating a fish pond is by stirring the water and ...
The most important factor which determines the demand for cowpea by consumers is the ...
The chemical weathering that is responsible for changing haematite to limestone is ...
Which of the following is a soil micro-nutrient? ...
The following processes in crops are sensitive to daylength except ...
Which of the following diseases of crops is not caused by a fungus? ...