Cultural Methods of Crop Protection Flashcards
1
Q
Ploughing
A
This buries perennial weeds so they die and decompose.
2
Q
Destruction of crop residue
A
Some pathogen spores survive on straw or stubble left over after harvest.
3
Q
Time of sowing
A
Sow when annual weeds are in dormant seeds and perennial weeds have been ploughed.
4
Q
Cover crop
A
Grown on fallow land, these crops compete successfully with weeds.
5
Q
Crop rotation
A
A series of different crops are grown on the same piece of land over time. The current crop will not have the same pests as the next crop.
6
Q
Critical time for removal of weeds
A
Weeds removed early in life of crop allows the crop to become stronger.
7
Q
Removal of alternative hosts
A
Alternative hosts of pests can be weeds at the edge of fields, removing these control pests. However this can reduce wildlife.
