16 
Bulletin 71. 
INSECTS INJURIOUS TO THE CHERRY. 
The insects attacking the cherry in Colorado are the Fruit-tree 
Leaf-roller, Tent Caterpillar, Fall Web-worm, Brown Mite, Plant 
Lice, Scale Insects, Grasshoppers, Flat-headed Borer, Twig Borer, 
Buffalo Tree-hoppers and Pear Slug mentioned above. 
INSECTS INJURIOUS TO THE PEACH. 
peach twig-borer. (Anarsia lineatella.) 
This is the worst peach enemy in Colorado at the present time. 
As soon as the buds begin to open in the spring, a small brownish 
larva with a black head eats into the buds and destroys them. 
When the new shoots start, the borer eats into them causing them 
to wilt and die. Many of the second brood of this borer eat into 
the peaches, causing a gummy exhudation and ruining them for 
market. The larvae that appear in the spring spent their winter in 
little excavations which they made in the fall in the bark of the 
trees. See Figs. 11 and 12. 
Remedies. — Early in the spring, just before the buds open, spray the 
trees with lime, salt and sulfur wash (21), whale-oil soap (12) in the proportion 
of a pound to two gallons of water; fish-oil soap (13) diluted once with water, or 
kerosene, will doubtless do the work nearly or quite as well as the lime, 
sulfur and salt. Many of the larvse may be caught under bandages (36) used 
as for the codling moth. 
Fig. 11.— Peach Twig-borer: a, twig of 
peach showing little masses of chewed 
bark above the larval burrows; b , the 
same enlarged; c, larva in winter burrow, 
enlarged; d, hibernating larva greatly 
enlarged. (Marlatt, Bulletin 10, N. S., 
U. S. L)ep. of Agr., Div. of Entomology). 
Fig. 12.—Peach Twig and Borer: a, young 
shoot wilting from attack of borer; 0, 
adult larva enlarged; c, chrysalis en¬ 
larged; d, tail end of chrysalis showing 
hooks. (Marlatt, Bulletin 10, N. S., U. S. 
Dep. of Agr., Div. of Entomology.) 
THE PEACH BORER. 
A yellowish white borer attaining the length of about one 
inch, boring beneath the bark of the lower trunk and larger roots. 
See Plate IV. 
