34 
Colorado Experiment Station 
Bark and Wood 
Currant Borer .—A yellowish white larva, about one-half inch in 
length when mature, that tunnels into the canes, often killing them. It 
hiberates within the canes and comes out as a wasp-like moth in June. 
The moth very much resembles that of the peach borer, but is smaller. 
Infested canes can often be detected by the withered yellowish appear¬ 
ance of the foliage or the small burrow made to the surface. 
Remedies .—Cut out and burn all infested canes as soon as de¬ 
tected. Keep the old wood well trimmed out. ^ 
Scale Insects .—The San Jose. Putnam, Oyster-shell, and several 
other species of scale insects may attack the currant and gooseberry. 
STRAWBERRIES 
Leaf Roller .—Small greenish-brown caterpillar that webs the two 
halves of the leaves together and feeds within the roll causing the 
leaves to wither and die. So much of the foliage may be destroyed that 
the fruit will not mature properly. See Figs. 26 and 27. 
Fig. 26.—Strawberry Leaf-roller; a, larva, natural size; b, head end of larva enlarged; 
c, moth about twice natural size; d, tail end of larva enlarged. (After Saunders.) 
The adult insect is a small dark brown or rust-colored moth with 
white markings on the wings; about one-half inch across expanded 
wings It also attacks the raspberry and blackberry. 
Fig. 27.—Strawberry leaves showing their appearance after being folded. (After Weed.) 
