6 CIRCULAR 523, U. S. DEPT. OF AGRICULTURE 
TABLE 3.—Results of laboratory tests of various organic compoundswused as insecticides 
against codling moth larvae—Continued 
SULPHIDES, DISULPHIDES, SULPHOXIDES, AND MERCAPTANS 
Apple plugs Stand- 
3 : @ar Spray | Source ard 
Compounds naan appli- ' of error of 
cations | larvae r A percent 
Total | Wormy| Stung wormy 
x ; Number Number| Percent| Percent 
Acetonyl-o-nitrophenyl sulphide, CsHsNO:2S- 2 A TO a MASA |eee ke cOb| memes 
2,4-Dihydroxy-2’-nitro-diphenyl sulphide, 
CiHoNOiS) bea ae ee 2 1 A 95 75 A OR ences soe 
Diphenyl] disulphide,? Cy2Hi9S2__-____________ 4 1 A 97 40 Lym (seen te eee 
(2 - Hydroxy - 1 - naphthyl) - 2 - nitrophenyl 
sulphides CigHyiNOzs === ee 2 1 A 88 78 Rul oarsmen ied 
Methylphenylmethylene - bis (mercapto- 
aceticacid); CisklisO1S 92 ee eee 2 il L 90 63 71 pet eden 
2-Naphthyl mercaptan, CioHsS_______________ 2 1 A 85 72 110 (he ele 
N-(o-Nitrophenylmercapto)-p-toluiline, Cy; 
TaN 2 O98 Sse 8 ee es se Re 2 1 A 104 64 Dee ea 
o-Aminophenyl methyl sulphide, C;7HgNS-_--- 15 2 A 47 98 0 +3. 5 
Benzyl thioxanthic acid, CsHgS3_____.________ 15 2 A 35 91 0 +3. 9 
(4- Chloro - 2- nitrophenyl - mercapto) - acetic | 
Acids Cski¢ CINOiS Se eee =a 12 2 Ww 42 95 0 +3.5 
4-Chloro -2 - nitrophenyl sulphur bromide, 
CcHsBrOiN O08 2 2 ee oe ee 12 2 Ww 51 78 2 +8.1 
Diphenyl] sulphoxide, Cy2Hi00S_____________- 3 il L 96 58 9 +6.3 
Ethyl ester of (4-chloro-2-nitrophenylmer- 
capto) acetoacetic acid, CizHi2C1NOsS_-___- 12 2 W 48 92 0 £3. 5 
Triphenyl ester of trithio-arsenious acid, 
We(OF Os h/\GIS) ee Reha ae See ee 3 1 L 107 80 12 +5.7 
Tri-p-tolyl ester of trithio-arsenious acid, Ca 
Ne CU AGS ee ee oe Oe 3 1 L 105 92 2 42.5 
ACIDS, ALCOHOLS, AND ESTERS 
Borneo G10 k13 Os ee ee See 8 7) A 42 88 0 +5.8 
N-Butyl oxalate; Cj Hi1s02 === Se 12 2 WwW 43 95 0 +3.9 
2-Chloro-3, 5-dinitrobenzoic acid, C7 H3C1IN20¢_ 12 2 W 44 59 0 +8. 8 
Citronellolk&Ci)h210= eee 12 2 W 47 92 6 +3.9 
Dihydrocitronellol, CioH20___._____________- 12 2 W 48 94 0 +3.9 
a, p-Dimethyl-benzyl alcohol, CgHi20_____-_-- 12 2 W 31 97 0 +3.9 
4, 6-Dinitro-o-cresol acetate, CopHsN20¢____--_ 1 1 L 42 10 1 +4,4 
Epichiorohydrin| C3;3H;ClOL = 12 2 WwW 37 97 0 +3. 9 
Hthylioxalate,, Cok Oi eee 12 2 WwW 36 100 0 +3.9 
Geraniol CiorisO eae = eee ene 12 2 WwW 25 96 4 +3.9 
Hydrocinnamice acid, CyHy002._-_____________- 12 2 WwW 51 100 0 +3.5 
Ain aAloOle C1013 Oe ws ee eee 12 2 WwW 33 100 0 +3.9 
Octaacetyl sucrose, C2sH3gO9__--._____________ 12 2 W 48 92 0 +3.5 
a-Isopropyl-a-methyl benzyl alcohol, CirHi1sO0_ 12 2 WwW 30 100 0 +3. 9 
ALDEHYDES, KETONES, THIOALDEHYDES, AND THIOKETONES 
Acetophenone; CsHh;:0= 12 2 A 45 96 2 +3.5 
Anthraquinones CH cOgre sa. eee 1 1 L 60 63 5 +6. 7 
Renz Cw O23. eee 8 2 A 41 81 2 +5.8 
= ES aVZoba Oey a by Os pee ee eee 12 2 WwW 46 100 0 +3.9 
a-Bromo-p-phenylacetophenone, Cy4Hi1BrO-- 1 1 L 69 88 3 +4.9 
p-Chloroacetophenone, CsH7C1O__________._- 15 2 A 38 97 3 +3. 5 
2-Chloroanthraquinone, C1s4H7C103_________-- 3 1 L 86 97 1 +2.7 
Cyclopentanone; ‘CsHsO=2. 22) 12 2 WwW 37 97 0 +3.9 
Desoxybenzoin, CuO 12 2 W 33 O7 0 +3.5 
2-Ethylhexenal, (Cakl1 Osean ee 12 2 Ww 29 97 0 +3.9 
a-Hydroxy-p-phenylacetophenone acetate, 
CiglltiO 3-2 2 Pe Ra aa ee 1 1 W 54 94 0 +3.5 
a-Hydroxy-p-phenylacetophenone chlorace- 
Gate Cre bls Cl © zien eee mee! 1 1 W 53 87 0 +5.8 
a-Hydroxy-p-phenylacetophenone formate, 
CirsH1g Ogee Ee Se a eee 1 1 W 51 96 0 +3.5 
Miesitylvoxidex@elij Oe 12 2 Ww 45 89 4 +6. 5 
p-Methylacetophenone, CpHi.O0_____-_______- 2, 2 Ww 39 95 0 +3.9 
2-Methylanthraquinone, C15Hy9O2__-__________ 3 1 L 106 89 1 +41 
Trithioformaldehyde,?C3H6S3____.-.._._-__-- 4 1 W 76 51 he) Se 
Prithiovanillin, CoE Osss_--_ = 12 2 W 42 86 zi +5.8 
Tri-(thiovanillin benzoate), C4sH3s09S3_____-- ee 2 W 63 94 2 +3.2 
