New YorRK AGRICULTURAL EXPERIMENT STATION. 343 
AMMONIA-CASEIN WASH. 
This wash was made by the Station formula as follows: 
WAVER STC eS 2) Ah eae ae Sry ASA eA ey a 1 gallon. - 
Pre IT teeas tc. far, ATS TL de, Siaftcta setae. 1 pound. 
EN RIVONIA 20 oo. SAUL. . G'S e Teatro Gt SN 1 pint. 
The ingredients were mixed and the whole boiled about an 
hour or until the casein was divided into very fine particles 
suspended in the solution. The casein was used for the pur- 
pose of comparison with resin as a base. 
Results.— The wash sprayed well and formed an excellent 
evenly distributed and highly polished varnish on the bark. It 
remained on the tree during most of the summer, gradually 
weathering off late in the season. There was no evidence of 
injury to the tree except that the young leaves were slightly 
burned. The scales were evidently killed wherever reached 
by the spray. Many were found glued to the bark. 
LIME-SULPHUR-SALT WASH AND CASEIN. 
The lime-sulphur-salt wash was prepared in the usual way 
and, while boiling, the casein wash, as prepared above, was 
added at the rate of one pound of casein to each gallon of the 
wash. The object was to determine if casein could not be used 
to increase the adhesive qualities of the lime-sulphur-salt wash. 
Results.— One tree was treated. The casein separated from 
the rest of the mixture and hence it was difficult to apply 
evenly. As was expected, the lime, sulphur and salt killed the 
young leaves and seriously injured the tender twigs. 
LIME-SULPHUR-SALT WASH, LIQUID ONLY. 
The wash was made in the usual way and allowed to stand 
until all the heavy precipitate had settled. The liquid was then 
drained off and sprayed upon a tree. This experiment is parallel 
to some of the experiments with infested apples, page 434, 
testing the effect of the soluble ingredients of the wash upon 
the scales, and in its effect upon the scale bears out the results. 
Results.— The young leaves were badly burned and the tips 
of the smaller branches were also burned somewhat, due un- 
