570 REPORT OF THE COMMISSIONER OF AGRICULTURE. 



Experiment 53. Kerosene emulsion 41 ; soap 37. 



Emulsion, 3 pints; soap, 1 pint; water, 1 gallon. Applied August 25. August 28, 

 many young scales forming. September 7, about 10 per cent, of old scales living; 

 many young forming. November 4, tree swarming with scales. 



ExpeHvient 54. Kerosene emulsion 41; soap 37. 



Emulsion, 1 pint; soap, 2 pints; water, 1 gallon; Applied August 25. Septem- 

 ber 7, found t\Vo mother scales living; young forming quite numerously. October 

 5, tree full of young scales. 



Experiment 55. Kerosene emulsion 41 ; soap 37. 



Emulsion, 3 pints; soap, 1 pint; water, 1 gallon. Applied August 25 on small and 

 faded tree. September 7, leaves nearly all otf; many young scales forming. Sep- 

 tember 22, branches all dead; many young scales on stem; no living adults. 



Experiment 56. Kerosene emulsion 41 ; soap 37. 



Emulsion, 1 pint; soap, 3 pints; water, 1 gallon. Applied August 25. August 28, 

 found a few living young under mother scale. September 7, many newly formed 

 scales. September 24, old scales all dead; young quite numerous. October 5, scales 

 very few; tree doing well. 



Experiment 57. Kerosene emulsion 41. 



Emulsion, 5 pints; water, 1 gallon. Applied August 31 on small and sickly tree- 

 September 7, no living old scales; only two hving young could be found. Septem- 

 ber 24, leaves all off; scales few. October 5, tree pushing out new shoots on stem; 

 some branches still living. November 4, tree growing; scales few. 



Experiment 58. Kerosene emulsion 41. 



Emulsion, 6 pints; water, 1 gallon. Applied August 31. Tree lightly sprayed. 

 September 22, a few of the mother scales still living; young forming quite numer- 

 ously, October 5, no living old scales; young few; tree in good condition. 



Experiment 59. Kerosene emulsion 41. 



HaK emulsion and half water. Applied August 31. Tree sickly and thickly in- 

 fested with Icerya and Red Scale; also many Black Scales; many branches already 

 dead. On very careful examination September 7 found one gravid female still liv- 

 ing and some young scales formmg. SeiDtembor 24, tree bringmg forth new shoots 

 on stem; young scales quite numerous. October 5, upper part of tree all dead, al- 

 though growing well below; scales few. 



Expemment 60. Soap 37. 



Soaj), 4 pints: water, 1 gallon. Apj^lied August 31 on small and faded tree thickly 

 infested with Icerya and Red Scale. September 7, found two moving young; leaves 

 remaining only on lower branches. September 24, tree nearly dead; trunk agata 

 covered with Icerya. October 5, tree shooting out below; scales few. 



Experiment 61. Soap 37. 



Soap, 6 pints; water, 1 gallon. Applied August 31 on small and withered tree fuU 

 of Icerya, Red and Black Scales. September 7, all scales destroyed: occasionally 

 one young forming. September 24, a few young scales; tree shooting out again. 

 October 5, hardly any Red Scales, yet the tree is covered again with Cottony Cushion- 

 scale. 



Experiment 62. Soap 37. 



Half soap and half water. Applied August 31. September 7, scales all destroyed; 

 on careful examination only one moving young could be found; only a few leaves 

 had dropped. October 5, tree shooting out everywhere, November 4, tree almost 

 free from scales and growing vigorously. 



Experiment 66. Tar soap 63. 



Soap, 2 pints: water, 1 gallon. Applied Se))tember 2 on tree that had been nearly 

 killed by tlie scales. September 6, scales not all killed ; young hatching numerously. 

 October 5, some of the older scales still living; young numerous; tree nearly dead. 



Experiment 67, Tar soap 63, 



Soap, 4 pints; water, 1 gallon. Applied September 2 on large tree covered with 

 scales, September 22, found only a very few yoimg; old scales aU dead; tree not 



