408 Report OF THE HorRTICULTURIST OF THE 
nests or by applying a poisonous spray to the fohage. It is easier 
to kill the caterpillars by spraying when they are very small than 
it after they have become large. It is important, therefore, to 
make the first spraying just before the blossoms open because that 
is about the time the caterpillars emerge from the egg. The co- 
coons are quite conspicuous and their destruction will aid mate- 
rially in lessening the numbers of females to lay eggs. 
For further information relative to these insects and their near 
relatives, the forest tent-caterpillars, which are sometimes injuri- 
ous in orchards, consult Bulletins 152 and 159 of this Station. 
BUD MOTH. 
(T'metocera ocellana Schif. ) 
Description and life-history.— The young of the bud moth are 
small brown caterpillars about half an inch in length. During the 
winter they live in small, oval, silken cases, attached firmly to the 
bark of the twig. As the caterpillars are very small when winter 
sets in, about one-eighth of an inch in length, their silken cases are 
also small and hence easily overlooked. During this period of 
their lives the caterpillars are green in color. 
About the time that the buds begin to swell in the spring, the 
caterpillars come forth and bore into them, thus early protecting 
themselves against insecticides. As the young leaves and flowers 
unfold the caterpillars form nests for themselves by tying the 
leaves together, making their presence quite conspicuous. They 
do not leave these nests in feeding. During June they reach full 
growth and change to the chrysalis stage in the nest. In about 
ten days a small brown moth escapes. ‘This is the adult. The 
eggs are laid on the under side of the leaves. These soon hatch 
and the young caterpillars feed on the under sides of the leaves, 
protecting themselves by a thin, silken web. Before winter ap- 
proaches they migrate to the twigs and form the silken cases in 
which, as above stated, they live over winter. 
