58 NEW YORK STATE MUSEUM 
soap, used at the rate of 1 pound to 6 or 7 gallons of water, or the 
standard kerosene emulsion, diluted with nine parts of water, should 
be effective if thoroughly applied. A wash composed of 3 gallons 
of water, { pound of hellebore and one teaspoonful of carbolic acid, 
applied to the infested portions of the tree with a whitewash brush 
in early spring, has been found very effectual in Hlinois. It would 
not be surprising if a thorough application of a lime-sulfur wash 
in early spring would be equally valuable in checking this pest. 
Juniper scale (Diaspis carwels “large fozz)) mhis 
scale has been brought to notice several times on account of its 
occurring upon juniper in various localities in New York State. Mr 
John Dunbar, assistant superintendent of the park, Rochester, 
N. Y., writing under date of April 16, 1906, transmitted specimens 
of this scale and stated that it was becoming a menace to the juniper, 
Juniperus virginiana glauca, and also occurted on 
Pinus aristata, the latter being a new food plant for this 
species. Subsequent observations by Mr. Dunbar showed that this 
insect began breeding in Rochester early in June, and that thorough 
spraying at this time with a 5% solution of scalecide was 
very effectual in checking the pest. This scale insect was noticed in 
1880 by Professor Comstock, who recorded it at that time as very 
common in Washington where it occurred on the following species 
of juniper and arbor-vitae: Juniperts (chinemsou 
igida,. Jevoxyicedrus3 ji .-g7e po meas. ee Ome 
Mainiss + io peresaie. aiaro lea or 1 en ta lis + vand 
Thuya occidentalis. Messrs Riley and Howard re- 
corded this species in 1895 from Jamaica Plain, Mass., where it 
occurred on Juniperus sphaerica, brought over from 
Germany some four or five years before. 
Elm bark louse (Gossyparia spwturia Mod.). This 
species has been quite destructive to elms, particularly the Scotch 
elm, in recent years. It is rather abundant and appears to be gener- 
ally distributed throughout the city of Troy, N. Y. The females 
had attained their maximum development early in July and the 
woolly matter excreted trom the lateral pores made the insects 
rather conspicuous. This bark louse while preferring European 
elms is also somewhat abundant on American elms, though hardly 
so injurious to the latter. 
Forest insects 
White. pine weevil (Pissiodes Strobi, Peck). she 
blighting work of this weevil on pine is well known, though full 
