368 
found upon the red ones. This same peculiar fact was also found to 
hold with the ants, since the red ant (Formica schaufussi) was abun- 
dant upon the pears, but no specimens were found bearing Aspidiotus 
larvae, while, as just stated, the little black Monomorium was always 
found carrying specimens. Curiously enough, no ladybirds other than 
Pentilia were seen. The common Twice-stabbed Ladybird (Ckilocorus 
oivulnerus . which is so scare an enemy of scale insects and plant-lice 
throughout the Southern States, was absent. 
STAMPING On THE SPECIES AT CHAELOTTESYILLE. 
Believing, from Mr. Schwarz's report, that the area m which the 
insect occurs around Charlottesville was yet limited, and feeling the 
importance of effectual steps being taken to stamp it out. because of 
the danger of its future spread to the rest of the State of Virginia and 
to the whole Atlantic fruit re- 
gion, the Entomologist was anx- 
ious to still more definitely de- 
limit its range, and Mr. D. W. 
Coquillett. who has had much 
experience with the insect in 
California . was direct e d t o 
make a second survey of the 
field. He spent some time at 
Charlottesville in December, and 
his report fully confirmed the ob- 
servations of Mr. Schwarz. and 
showed that the species was lim- 
ited to the region already indi- 
cated. On account of the small 
number of trees concerned, it 
was deemed best to make an 
effort to stamp the scale out by 
g means of the gas treatment. Mr. 
d. anai fringe of same— Coquillett was accordingly sent 
,m Circnlar No. 3. Div. Ent. , ^ CnarlottesviUe m March, with 
the necessary apparatus, and. with the cooperation of Dr. Hedges and 
Air. H. L. Lyman, of the Virginia State Board of Agriculture, every 
infested tree was thoroughly treated, with the result that we are able to 
announce the practical extermination of the scale at this point. It 
has since been found upon two or three small, untreated plants, and 
these have been destroyed by Dr. Hedges by burning. 
DESTRUCTION OP THE SCALE AT OIHEE POINTS. 
In the large orchard at Riverside, Md., extensive spraying opera- 
tions have been conducted, and the scale is now under control. ' Both 
the kerosene emulsion and the resin wash have been used in these 
operations. The kerosene emulsion is effective against the young 
Fig. 25.— San Jose Scale: 
yonng — greatly enlarged 
still more enlarged. 
