REPORT OF THE STATE ENTOMOLOGIST I904 397 



time was a dark pea-green. There was greater chemical action 

 than in the case of wash ii. This wash was applied Ap. 14 to rows 

 10 and II, and a second treatment was given on the 15th in order 

 to insure thoroughness. 



July 22 no living scales were found nor any evidence whatever 

 of breeding, and on Sep. 23 no living scale insects were seen on the 

 foliage and very little on the trees, indicating that the treatment 

 had been very successful. 



Wash 14 composed of 25 pounds of lime, 20 pounds of sulfur and 

 12 J pounds of carbonate of soda to 50 gallons of water, was pre- 

 pared by adding the lime, carbonate of soda and sulfur in the order 

 named, to a few pails of almost boiling water in a small kettle, and 

 then boiled 15 minutes. The chemical action was very violent 

 and on accoimt of the small size of the kettle" some was lost by 

 overflow in spite of repeated additions of cold water in an effort 

 to keep the mixture within bounds. The compound changed 

 rapidly in color from orange to brick-red and there was consider- 

 able sediment. The second lot was made in a larger kettle and 

 the result was a more intimate combination and less than a tea- 

 cupful of sediment. This wash was applied Ap. 13 to rows 4 and 5, 

 and on account of the wind they were resprayed Ap. 15. 



An examination July 2 2 resulted in finding no living scale insects 

 on the treated trees, which were apparently vigorous and had 

 made a growth of from 4 to 8 inches. These good results were 

 confirmed by an investigation Sep. 23, when no young scale in- 

 sects were seen on the foliage and very little on the trees. 



Wash 16 composed of 25 potmds of lime, 20 pounds of sulfur and 

 12^ pounds of soda carbonate to 50 gallons of water, was prepared 

 by placing 5 pails of water in a cask, and the lime, carbonate of 

 soda and sulfur added in the order named. The mixture was con- 

 tinuously agitated with a hoe, and only 2 quarts of water were 

 necessary to prevent it from boiling over. As soon as the action 

 had ceased sufficiently, the barrel was covered with burlap and 

 allowed to stand 30 minutes. There was very little sediment, 

 less than a teacupful, and the combination appeared to be as per- 

 fect as in the case of wash 14. The color was a brick-red, about 

 the same as in wash 14. This was applied Ap. 14, to rows 12 and 

 13, and a second treatment given the 15th, 



July 22 no living scale insects were observed on the trees, which 

 were vigorous and had made some growth, and Sep. 23 no living 

 scale insects were seen on the foliage and very little on the trees, 

 indicating that the treatment had been a satisfactory one. 



