332 
ANNUAL REPORT OF NEW-YORK 
APPLE. LIMBS. 
dots or atoms, which disperse themselves over the smooth baric 
and then become stationary, with their beaks inserted in the bark 
sucking its juices. Some of these ere many days acquire two 
wings and resemble small flies or midges. These are the males. 
The others remain fixed to the bark, die, and become overspread 
with a substance resembling fine blue mould, forming little 
patches upon the bark through most of the month of June. As 
this mouldiness wears off - , the little blister-like scale first noticed 
again becomes visible, these scales being the dried relics of the 
females, forming a covering to protect their eggs through the 
autumn and winter. See Trans. N. Y. State Agricultural Soc. 
’ 1854, p. 732. 
Of late years every orchard in the district adjacent to Lake 
Michigan has been ruined by this insect. Numerous remedies for 
abating the evil have been tried, without success. Now at last, 
it is pretty well ascertained that anointing the trees with grease 
or oil is an effectual remedy. I am assured of this by Dr. Hoy, 
of Racine, and other correspondents, and by several communica¬ 
tions in the Prairie Farmer and other agricultural periodicals. 
16. Cotton scale insect, jfspidiotus Gossypii, new species. 
It may not be wholly out of place in this connection to observe that almost 
every tree and shrub, as well as many herbaceous plants, are infested, each 
with a species of bark-louse or scale insect peculiar to it. As yet, however, 
no insect of this kind has been recorded as pertaining to the cotton plant. But 
on some dried specimens of the Gussippium rcligiosum, sent me from Ningpo, 
China, by Rev. M. S. Culbertson, of the Presbyterian Board of Missions, l find 
a scale insect placed along the sides of the mid-vein, upon the under surface of 
the leaves. It is smaller than the scales of the apple bark-louse, pale yellow, 
flattened, of a broad oval form, pointed at one end, the opposite or rounded 
end being whitish, thin, and semi-transparent. It also shows a slender raised 
line running lengthwise upon each sido of the middle, and slight transverse 
wrinkles. There is reason to apprehend that this insect may find its way to 
our shores at some future day, and become detrimental to one of the most 
important staple products of our country. 
17. Apple tree blight, Eriosoma lanigera, Ilausmnnn. (Homoptera. 
Apliidae.) 
Small patches of white down or cotton-like wool covering a 
cluster of minute pale lice; situated near the root, particularly 
around the base of twigs and suckers growing from the trunk, 
