150 DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 
Plat 6, resin-soda wash.—The following formula was used: 
Resin. . - 
eaters es, AOR eee eins NT 3 Se ate. pints ase pounds... 10 
@alistiasodats. 22 bos SE RAs ee Pee ec ee oe eee do. 3 
Biteh Oils! ose EPR: See SO Ree Re ee eee do. 14 
Wearters: Ae 2.) cokes eel ee Ca ee ee ei eee gallons.. 50 
The resin was broken into small lumps and together with the caustic 
soda placed in a kettle with 10 gallons of water. The mixture was 
then boiled for about half an hour, and while boiling 14 pounds of fish 
oil were added; it was then poured into the tank and diluted with 
sufficient water to make 50 gallons of the wash. 
Plat 7, commercial lime-sulphur solution (1-8).—Six and one-fourth 
gallons of the concentrated lime-sulphur solution and 43% gallons of 
water were used to make 50 gallons of spray. 
Plat 8, borax.—Ten pounds of borax were used in 50 gallons of water. 
Plat 9.—For purposes of comparison this plat was left unsprayed. 
The respective treatments and results of same are shown in the 
following table: 
TABLE I.—Results of spraying for the European fruit Lecanium, San Jose, Cal., 1909. 
| : S First examina- | Second examina- 
= = | tion, Feb. 22, 1909. | tion, Mar. 6, 1909. 
| aye 
fol a |e les | 2, eel 
Plat = g$\/c./8 ala./8 es 
Nia Treatment. Ss & Oo bd =| of | Oe (ton. o® 
a a | 9) ee) 28 be 41 ee 
° | =e |s2le2|88led/e2/ 3s 
3 | BS | RO) 8S F es] 
A a Z Z Ay Z Z a 
1 | Distillate-oil emulsion.............------- | Feb. 18| 14] 305| 304] 99] 926| 806] 96 
2 | Distillate-oil emulsion and caustic soda. ..|.--.do--.- 14| 428] 426 99 | 647 640 97 
3 | Distillate-oil emulsion, mechanical mix- 
JYBUIND. 8 3 BS posse oon ac nuS san caosaeetosars ..do. 14 467 465 99 216 118 54 
43| Cansticsoda js2et fo. 2 Peet eee eee ee .-do 14} 100 98 98 | 194} 179 92 
Sul AC RUGS-Ollkemim SiON ee. sas= > = eae eee eee do. 14 90 90 100 122 78 64 
Gil @Resinuwash Je. a4 sce eeisa esate e eee ae eolt) 14| 180| 180] 100 30} 21 70 
7 | Commercial lime-sulphur wash No. 1..--- a2d02 14] 400]; 400} 100] 252; 17 7 
Silp Borax d sens ae he ee. ak eee ee s3doz 14; 200} 200}; 100 64 | 28 44 
Or WChetks eee asat ath Ske cosaeccee aera es =e -do TAG S25 14 4| 739 | 71 9 
Third examina- 
tion, Mar. 26, 1909. 
Plat 3 3 ioe Fourth examinaton, Fifth examination, 
No Treatment. Sy z ow July 1, 1909. Dee. 13, 1909. 
wa lns| os 
| 9/38 | a 
"= 38 o 3 
ESia |es 
| a Z Ay 
1 | Distillate-oil emulsion... ..... 290 290} 100 | Scales all dead; lichens | Scales all dead; lichens 
dead. dead. 
2 | Distillate-oil emulsion and | 234} 234] 100 ].--.-- Gow’. cee 1 See Do. 
; caustic soda. 
3 | Distillate-oil emulsion, me- | 219 | 219! 100 |-..... (3 (Aa eka Do. 
chanical mixture. 
Aan Caustiesodass-sa0s: — ese seee 65 61 94) | eee Gt sae oe Do. 
5 | Crude-oil emulsion. .........- 94 O42 a 00 nec (0 (opeeees Pe ee Sr eo Do. 
GalMResinmwash: ss arenes cee 65 54 83 | A few live scales -..... Do. 
7 | Commercial lime-sulphur | 248 44 15} A number of live | A number of _ live 
wash No. 1. scales; lichens dead. seales; lichens dead. 
BGR Re cc ooeoenoeba sot conkoee 107 31 203 Beene 0. Js ccioceseeeen: 0. ; 
Of a@heckssc a scecensnees eect eee 142 24 17 | Scales nearly all alive; | Seales nearly all alive; 
lichens flourishing. lichens flourishing. 
