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THE APPLE PLANT-LOUSE. {Aphis mall Fabr.) 
During the winter and early spring there are small 
shining black specks in rough places in the bark and about 
the buds, or, as is often the case when abundant, distributed 
promiscuously over the surface of small limbs, usually most 
abundant where there is abundance of fine plant hairs mak- 
ing a felty covering to which the eggs are easily attached. 
See Fig. 12. 
Just before the buds open, the eggs hatch, producing a 
green louse which grows to about one-twelfth of an inch in 
length and which takes up its abode upon the leaves where 
it grows rapidly and, b}^ its injuries, causes the leaves to curl 
so as to form for itself a partial protection. 
Remedies — The best time for treatment is while the 
trees are dormant, any time after the leaves fall and before 
the buds open. For treatment during this time use either 
kerosene emulsion, double strength (diluting only enough 
to make the mixture one-seventh kerosene), or whale-oil 
soap in the proportion of i pound to six gallons of water. 
The very best time to make the application is after the lice 
have all hatched and just before the buds open enough to 
give the lice protection. The danger in waiting for this 
time is that one is liable to wait a day or two too long and 
then the lice will get jnto the open buds and be so protected 
that some will escape to perpetuate the species and the in- 
crease is very rapid. 
After the leaves are out, kerosene emulsion of the ordi- 
nary strength (one-fifteenth kerosene), or whale-oil soap in 
the proportion of i pound to 8 gallons of water, are the best 
remedies. Apply as a spray and be sure to make the appli- 
cation thorough. 
THE WOOLLY AP {Schizonejtra lanigera ^3iUS\n.) 
A very soft-bodied louse, more or less covered with a 
white, flocculent excretion, resembling wool, and causing a 
blood-brown stain when crushed in the hand. One form of 
this insect occurs on the roots of the trees and produces 
wart-like swellings; another appears on the trunk and limbs 
and is usually densely covered with the woolly excretion. 
