3. Crop Protection - Control of Weeds, Pests and Diseases Flashcards
1
Q
What are cultural ways of controlling weeds, pests and diseases?
A
Ploughing, crop rotation, hand weeding
2
Q
What two things can plant protection chemicals be?
A
Selective or systemic
3
Q
What do selective weed killers do?
A
Mimic the action of natural plant growth substances to stimulate the rate of growth in broad-leaved plants
4
Q
What do systemic weed killers do?
A
Enter the transport system of the weed and work against the plants internal structures
5
Q
Spraying diseased crops can be wasteful so what is it better to do?
A
Use disease forecasting to predict a fungal outbreak and spray before disease spreads
