Apple IPM Home Apple Scouting Manual IPM Final Reports INSECT
AND MITE PESTS San Jose Scale There are two main problems with
control of this insect: 1) the insect is very small and so goes
unnoticed until large populations have built up; and 2) the
insect spends much of its life cycle under a protective cover or
scale. Therefore, TIMING of insecticide applications becomes of
paramount importance. San Jose Scale The adults are very small
and the female does not fly. Males will emerge about mid-May and
seek out females. Mating occurs and then, about early to mid
June, live young (called crawlers) are born. These tiny yellow
insects move over the tree in a seemingly random pattern until
they locate a suitable site. Once located, the crawler sticks
its mouthparts into the tree and secretes a waxy shell over its
body. From this point on, female scales will not move. Males
will remain in one location until maturity at which time, they
will seek out females and begin the cycle again. SCOUT: Scale,
if sampled, will b