5.4 understand the reasons for pest control and the advantages and disadvantages of using pesticides and biological control with crop plants

- Pesticides
Advantages: Very effective, easy to apply, easy to obtain

Disadvantages: Toxic (kill other plants and can harm humans), Bio accumulation, Resistance (Mutation in the pests - leads to resistance)

- Biological Control
Advantages: No toxic chemicals, Less impact on wildlife

Disadvantages: Not 100% effective, Difficult to control, difficult to match a predator to prey, it can take a long time