What is physical control in agriculture?
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Control pests with physical methods or mechanical devices such as knocking pests off of plants with a spray of water, using barriers and traps, cultivating, soil polarization, or heat treatments.
Physical control refers to mechanical or hand controls where the pest is actually attacked and destroyed. Physical controls are used mostly in weed control. Tillage, fire, removal by hand, grazing and mowing are all used to destroy weeds and prevent reproduction.Weeds are not controlled through a single operation.
Methods in this category use some physical component of the environment—for example, temperature, humidity, or light—to suppress pest populations or damage. Some examples of physical and mechanical pest controls include: tillage. flaming. flooding.