299 
Coquillett states that he.has not yet heard of any aecident either to 
human beings or domestic animals resulting from this treatment. 
The Spray Treatment. 
The .gas method of treatment, if аучы applied, has a great 
advantage over any method of spraying, inasmuch as every insect in 
thoroughly as to leave no insects untouched, and those that escape may 
form the starting point of a new outbreak. Nevertheless, the gas 
treatment requires a special apparatus, which may not be at hand, 
whereas the spray, which has been used with very good effect, is; 
comparatively туу applied. ‘The wash which has proved most useful 
is the Resin Wash 
(i) The Resin Wash. 
The following receipt, given in Insect Life, Vol. П., has proved very 
efficacions :— 
- 20 pounds. 
TORA AM 70 per cant. - . 6 pounds. 
Fish oil 3 pounds. 
Water pach to cake 100 gallons. 
It is ba aces Py placing all the ед in a red and covering 
them with wa Boil and stir for about two hours, or until the 
mixture will diteté evenly Yu water, then add wate "slowly till the 
kettle be full. "This may then be emp fied into a larger receptacle and 
diluted with water till it — to 100 gallons. The water must be 
added slowly so as not to coo the mixture too suddenly. The resin 
and caustic soda should. be ver into powder, to facilitate solution. 
The cost of materials in America, amounts to a little under one halt- 
penny a gallon, An orange tree, 16 feet high and 14 in circumference, 
the resin and rish oil saponified by the action of the caustic ¿sura and not 
to the direct influence of the last-named ingredient. 
The wash is usually sprayed over the trees twice a year, in о March and 
April, and again in August or September, but some grow prefer to 
spray twice in the autumn, with an рае of салаб two months The 
wash does not seem to injure the or must be 
taken that the scales in the under are of vem genii d not escape 
be If уйы attempt be made to rid Cyprus of this pest, and it would bé 
obviously an easier task in the case of an island than of any portion 
of the mainland, it would be BI to appoint inspectors, whose 
business it would be to see that proper remedial measures were га 
taken in every in nfected grove. An energetic cultivator who succeeds in 
his own trees of the pest may fall a victim to the ence 
of his neighbours. ln cases вы this - it is necessary to take con- 
certed action, as one diseased t ree may become the centre from which 
a whole distriet may be infected, and to ie: aetion of this kind would 
necessitate some organised page of inspection. 
