Biological control - Advantages and disadvantages table in GCSE Biology

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Created by: abbieenia1
Created on: 13-05-17 19:08

Biological control

Advantages

It is specific to a particular pest
Once the predator is established, there is no need to re-introduce it at a later date
The pest does not develop resistance to the predator.

Disadvantages

There is a delay between introducing the predator and a reduction in the pest
It does not completely eradicate the pest, only brings it's number down to acceptable levels.

Evaluation

Before considering using a species as a biological control agent thorough research needs to be carried out to make sure that this species does not turn out to be a pest itself.

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