— 12 — 
cumulating on certain small trees to deposit their eggs, so 
that some trees will be almost covered with scars, while 
others near by have few of them. About the only remedy 
seems to be to cut out the limbs in which the eggs have been 
deposited before the eggs hatch in the spring and burn 
them. 
I have noticed these badly infested trees, as a rule, 
about the borders of the orchard or in orchards where a 
large amount of foul stuff was growing, and I believe clean 
culture will do much to keep this pest out of the orchards. ■ 
THE SCURVY BARK LOUSE. {Chionaspis fiirfurits Fitch.) 
The presence of this insect is indicated by very small 
white scales upon the trunks or limbs of the trees, when 
abundant, entirely covering the bark and appearing like a 
covering of scurf or dandruff, and hence the common name. 
The female scales are broad and oval at one end and are 
about a tenth of an inch long; the male scales are not over 
one-twenty-fifth of an inch in length and are long and nar- 
row. 
Fig 8. — Scurv}' Bark Louse : a. twig showing scales of female louse; b, 
twig showing scales of male louse; c, scale of female greatly enlarged; d. scale of 
male greatly enlarged. (Howard, Yearbook. U. S. Dep. of Agr.. 1891.) 
Remedies — Whale-oil soap, 2 pounds to a gallon of wa- 
ter, kerosene emulsion that is one-fourth kerosene, or lime, 
sulphur and salt mixture, applied while the trees are dor- 
mant, would probably kill the scales. After the leaves are 
out, if the lice have not been killed, use kerosene emulsion 
of ordinary strength about the last of Mav and again about 
the loth of June. 
