123 
kept in quarantine at the old race-track in Hilo, cost the import- 
ers $343, exclusive of feed, simply for use of the premises. This 
condition must be remedied and Dr. Elliot's recommendations 
which are based upon careful inquiry, seem to be the only solu- 
tion of the question. 
A bill for the partial indemnification of owners of tuberculous 
animals is now under preparation and will be submitted to the 
Committee on Animal Industry for approval. 
Very respectfully, 
VICTOR A. NORGAARD, 
Territorial Veterinarian. 
ENTOMOLOGICAL INVESTIGATIONS. 
Honolulu, January 31, 1911. 
Mr. E. M. Ehrhorn, Superintendent of Entomology, Board of 
Agriculture and Forestry, Honolulu. 
Sir: — I submit the following report concerning my entomolo- 
gical investigations for the months of December, 1910, and Jan- 
uary, 1911: 
The study of the alligator pear mealy bug, (Pseudococcus 
ninae, Mask.) was continued during December and a number of 
additional insecticides were experimented with. The following 
formula has proven very effective: 
^'Black Leaf 40" V/z ounce. 
Whale-oil soap 4 ounces. 
Water 4 gallons. 
Small, easily reached trees can be entirely freed of mealy-bugs 
by one very thorough spraying, but with large trees, at least two 
applications are usually necessary. Unfortunately this solution 
is rather expensive, but where only a few trees are to be sprayed, 
it can be highly recommended. 
Two miscible oils, Sealecide and San U Zay scale oil, have also 
proven very effective in killing the ''bugs." Sealecide was tested 
at the rate of 1 part of oil in 24 parts of water and San U Zay 
scale oil at 1 part in 30. When used in these proportions, appar- 
ently every ''bug" which came in contact with the spray was 
killed. 
It is an unfortunate fact that all of the insecticides which have 
been tested at a sufficient strengrth to kill the mature mealy-bugs 
have burned the tender pear foliage to a greater or less extent. 
Guavas and other plants with tough foliage were not injured. 
The study of cabbage pests required considerable time during 
December and much progress was made in dealing with these 
insects. 
