4 Mark extended response

Question 1

2 possible Qs

Answer 1

Crop protection + animal welfare

Question 2

Crop protection

Answer 2

Weeds - annual + perennial properties how they lower crop yield
Pests- molluscs nematodes and insects - effect on plants
Pathogens and parasites - disease/lose nutrients
What is monoculture and what is good and bad (efficient but gives ideal growing and living conditions for weeds and other pests)
Methods of bio control (IPM)
Why herbicide bad and description
Types of herbicides and how work
Biological control - why good and bad
Cultural methods