REPORT OF THE STATE ENTOMOLOGIST 1906 5I 
but that the limoid-soda combination destroyed many scale insects, 
though it was not as efficient as a wash where good quicklime 
was employed. 
A general survey of Mr L. L. Morrell’s orchard at Kinderhook 
showed that the same was in most excellent condition. This gentle- 
man states that he has less scale on his trees than at any time in 
the past six years, and the excellent condition of his orchard sus- 
tains his statement. Mr Morrell is very well satisfied with the 
lime-sulfur wash though he is convinced that nothing but most 
thorough work, both in preparation and application, will give the 
desired results. 
The control of this insect in old orchards is a problem that 
demands further attention. Mr W. H. Hart of Poughkeepsie, who 
has had this scale in an orchard of large trees for some years, 
has succeeded in keeping the pest well within bounds provided 
he was able to spray one side with the aid of a favorable breeze and 
then treat the other when the wind was in an opposite direction. 
This treatment was very satisfactory for the lower limbs and 
branches, but with the apparatus at hand it was found almost im- 
practicable to successfully spray the higher limbs; consequently 
some of these were badly infested by the scale and eventually 
seriously injured. The tops of some of his large trees were mostly 
removed in the spring of 1905 before spraying was attempted, 
and during the summer they were in excellent condition. Certain 
other trees had the tops at this time in a very poor condition owing 
to injury by the scale and they were accordingly cut back in the 
spring of 1906 with equally beneficial results. It appears very 
probable that a large tree can be cut back to a greater extent than 
has been hitherto thought possible, provided some care is exercised. 
It may be that experience will show that this operation can be 
more safely performed after the upper portion of the tree has 
suffered somewhat from scale attack than if the attempt is made 
to cut it back while the tree is in unabated vigor. 
Several oil preparations, popularly known as “ soluble oils,” have 
been put on the market in recent years, and some very sweeping 
claims made in regard to the same. One of the foremost of these, 
known as “ scalicide,’ has been under observation during the season 
and a rather large orchard of young trees in the Hudson river 
valley was sprayed with this material. A few of the trees were 
rather badly infested by the scale, but most of them were com- 
paratively free. An examination of the infested trees in October 
