37 



FUMKJATION. 

 Trst Xn. 1: 



August '2N, 1000. FninipTiited foiir upplt's, nsiji^ 1 (miict- (v;iiii(l(»: treatment 



similar to that of the buds in lot 1. 

 AiiK^st :{1 . \Wi. No liviuf^ yoiiiij? or old scales ja-eseiit. 

 Oftober 15, 1!)((',\ No young have developed. Old scales dead. 

 Tixl Xo. .?: 



August 28. 1902. Fumigated three apples, using three-fourths ounce cyanide; 



treatment similar to that of the buds in lot 2. 

 August :51 . 1!>()2. No living young or old scales present. 

 October 1."), lil()2. No young scales have developed. Old scales dead. 

 Test Xo. ,?; 



August 28, 19C;i Fumigated three apples, using one-half ounce cyanide: 



treatment similar to that of the buds in lot 3. 

 August ;n, 190;}. No living young present. On two apples .some of the old 



females are api)arently alive. 

 September (5. 1903. No young found. Old scales apparently dead. 

 October 1."), 1903. No yoiing h;i>e developed. Old scales dead. 



The effect of tlie j;as on the scales was fatal in oadi case. No 

 livinj; insects were noted in tliree days after treatment except in test 

 Xo. 3, where the smallest anionnt of cyanide was nsed, and they per- 

 ished without giving birth to young. 



DIPPING IX AVHAI.K Oil. SOAP MIXTURE. 



In the following tests the apples wore placed in a coarse sack and 

 inimers(Ml in the soap mixture for fifteen minutes. 



Test Xo. 4: 



August 28, 1902. Dipped three apples in whale oil soap mixture: 2 pounds of 



soap to each gallon of water. 

 August 31. 1902. No living yoiing or old scales observed: scales are dark in 



color. 

 Septem])er 0. 1902. A few young scales and lice present. 

 September 15, 1902. Two apples very .slightly infested: one not infested. 

 October 15. 1902. Two apples very slightly infested; one not infested. 

 Tvst Xit. .-,: 



Augu-st 28, 1902. Dipped three apples in whale oil .soap mixture: 2 pounds of 



soap to each gallon of water. After removal they were wa.shed with water. 

 August 31 . 1902. Scales are bright in color: young lice present on two apj^es. 

 September 0, 19(l2. ^lost of the old scales are dead: many young crawling. 



Well-devt»loped females appear to be more easily kille<l than immature ones. 

 Septeml)er 15. 1902. Many young scales present. 

 October 15, 1902. Plenty of live scales in all stages. 

 Tent Xo. C.- 

 August 28, 1902. Dipped three apples in whale oil soap mixture: 1 pound of 



soap to each gallon of water. 

 AugTist 31, 1902. Lice crawling on two of the apples. 

 September f>, 1902. Many mature females dead: lice an<l young scales jm-.s- 



ent on all apjdes. 

 October 15, 1902. Plenty of live scales iu all stages. 



