Agriculture Reference
In-Depth Information
3.
Cultural Control
Cultural practices are agricultural practices used to alter the environment,
the condition of the host, or the behavior of the pest to prevent or suppress an
infestation. Planting, growing, harvesting, and tillage practices sometimes
can be manipulated to reduce pest populations. Other practices such as crop
rotation, pasture rotation, varying the time of planting, and use of trap crops
also affect pests.
4.
Mechanical Control
Devices and machines used to control pests or alter their environment are
called mechanical controls. Traps, screens, barriers, radiation, and electricity
can sometimes be used to prevent the spread of pests or reduce an infestation.
Lights, heat, and refrigeration can alter the environment sufficiently to sup-
press or eradicate some pest populations.
5.
Sanitation
Sanitation practices help to suppress some pests by removing sources of
food and shelter. Other forms of sanitation which help prevent pest spread
include using pest-free seeds or using decontaminating equipment or methods
on plants, livestock, and other possible carriers before allowing them to enter
a pest-free area.
6.
Chemical Control
Pesticides are chemicals used to destroy pests, control their activity, or
prevent them from causing damage. Some pesticides either attract or repel
pests. Chemicals which regulate plant growth or remove foliage may also be
classified as pesticides.
Pesticides are generally the fastest way to control pests. In many in-
stances, they are the only weapon available. Choosing the best chemical for
the job is important.
a
Pest Resistance to Pesticides
The ability of pests to resist poisoning is called pesticide resistance.
Consider this when planning pest control programs that rely on the use of
pesticides.
