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Action threshold the pest level at
which some type of
pest management action must be taken
2. Bioaccumulation The accumulation
of toxic substances,
such as pesticides, or
other organic chemicals in an organism
3. Biomagnification The tendency for
certain pesticides to
progressively become
more concentrated in
each type of organism
when moving from the
bottom to the top organism within a food
chain
4. Contact pesticide Pesticide that is not
absorbed systemically by treated plants
or animals.These pesticides must directly
touch the pest or a site
the pest frequents to
be effective
5. Economic threshold The level where
the economic losses
caused by pest damage, if the pest population continued to grow,
would be greater than
the cost of controlling
the pests
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