Most damage associated with crayfish
is the result of crayfish burrowing in
home lawns.
Newly
planted rice fields may be damaged by
foraging crayfish where local populations
are high.
High populations of crayfish are
generally associated with years of high
rainfall. Unseasonably dry weather
conditions usually reduce crayfish
numbers.
Crayfish can
reduce game fish populations by preying
on eggs and fry. They also can
degrade habitat by destroying aquatic
vegetation.