TOXICITY OF ORGANIC INSECTICIDES TO CODLING MOTH rf 
TABLE 3.—Results of laboratory tests of various organic compounds used as insecticides 
against codling moth larvae—Continued 
ALKYL AND ARYL HALIDES 
Apple plugs Stand- 
Cae SDIAVe | SOULCG |) e a | card 
Compounds rior appli- of error of 
cations | larvae r All f= percent 
Total | Wormy] Stung wormy 
‘ Number Number| Percent) Percent 
o-Bromobiphenyl, Ci2H pBr_._-___-___-_--__-- 11 2 Ww 23 gl 4 +5.5 
p-Bromobiphenyl, CuzHyBr_----_-_---._--._- 12 2 W 44 27 32 +6.8 
p-Chlorobiphenyl, Cj2HeCl_________________-- 3 1 L 101 67 4 +5. 2 
p-Chloroiodobenzene, CsH4Cll______________- 12 2 WwW 41 93 0 +3.5 
4, 4’-Dibromobiphenyl, Ci2Hs Br2_-._________- 12 2 WwW 54 100 0 +3. 5 
4, 4’-Dichlorobiphenyl, Ci2HsClg___-_._______-- 10 1 L 101 66 3 +5. 2 
4, 4’-Difiuorobiphenyl, CizHsF2___-.-._--__.-- 12 2 Ww 53 100 0 +3.5 
DP, p’-Diiodobiphenyl, CizH glo _-____.________- 12 2 Ww 43 98 0 +3. 9 
p-Fluorobrombenzene, CsH4BrF____._____~_ 12 2 WwW 50 100 0 +3.5 
o-F luorochlorbenzene, CsH4C]F_____________- 12 2 Ww 45 91 0 +3.5 
o-Fluorochlorobenzene, CseH4Cl1F___________-- 12 2 WwW 47 98 0 +3.5 
p-F luoroiodobenzene, CeH4FI_______________- 12 2 Ww 50 100 0 +3. 5 
Wexachlonobenzeney CeCleen es = see 3 1 L 69 73 0 +6. 8 
Hexachloroethane: .Cs© logs 2 3 1 L 87 66 0 +3. 5 
6-lodobiphenyl © iHolea teas ee eee 12 2 W 41 98 0 +3.5 
p-Lodobiphenyl CoH == ee 12 2 W 45 93 2 +3.9 
1, 2,3, 4,-Tetrachloronaphthalene, CjoH4Cly_ _ 12 2 A 7 83 3 +7. 4 
HETEROCYCLIC COMPOUNDS WITH 5-MEMBERED RING NOT CONTAINING 
SULPHUR 
3-Acetamidocarbazole, C1sHiz2N2O____-_______- 12 2 W 54 100 0 +3.5 
9-Acetylearbazole, C14Hi,NO______--________- 12 2 WwW 38 76 8 +9.0 
1-Anilino-benzoxazole, C13Hi9N20.-_-__--_--- 12 2 W 51 100 0 +3. 5 
9-Benzoylearbazole, CigHi3N O___.________--_- 12 2 WwW 49 82 2 +5.8 
9-Benzoy1-3-nitrocarbazole, Ci9Hi2N203______- 12 2; W 38 79 18 +9.0 
3-Chlorocarbazole, CizHsCIN__________.____-- 12 2 W 41 95 2 +3.9 
p-Chloro-a-furalacetophenone, C33H9ClO2____- 10 1 L 104 91 ] +:2.5 
3-Chloro-7-nitrodibenzofuran, CizHsCl1N O3__- 1 1 WwW 61 87 2 +5. 8 
Difuraleyclopentanone, Ci1sHi203.__--______-_- 12 2 W 50 88 A +5.8 
8, a-Dinapthofuran, C2oHi2.0_-...-____.__-___ 3 1 L 79 90 5 +4.1 
a-Furalacetophenone, Ci3H1902____-_-_______ 12 2 A 30 70 is +8. 2 
a-Fural-p-methy] acetophenone, C14H1202___ 10 1 L 105 79 4 +5.7 
3-Methyl-1-phenyl-5-pyrazolone, CioHi9N20_- 3 1 L 92 85 - +4.1 
3-Nitrocarbazole, C1z2HsN2O2_-_-______________ 12 2 W 51 92 2 +3.5 
1-(N-phenylacetamido) benzoxazole, CisHi:- 
ING Ope OREN UN Ss ey ke ek Ee 12 2 W 44 98 0 +3.5 
2-Phenylbenzoxazole, C;3HaNO____-_______-- 12 2 WwW 50 8 52 +3. 9 
Phthalic anhydride, CsH403-________________- 1 1 L 61 71 3 +6. 4 
Ryromucamiden€ sHsNiOgr2 222228 es - 10 1 L 95 75 2 +5.7 
OOOO 
HETEROCYCLIC COMPOUNDS WITH 6-MEMBERED RING NOT CONTAINING 
SULPHUR 
Sete een eter e tee ET Tots Pe ee Se en ee ee 
3, 4-Benzocinnoline oxide, CizHsN20__-_-_-_--- 3 1 L 97 88 9 +4.1 
3, 4-Benzocinnoline Cy,HgN>2-_---------------- 3 2 W 48 8 (tp) eT 
A} 9'=Bixanthene;.CoskseOo-—- == =.= 3 1 L 76 74 0 +5. 7 
Butyl ester of 2, 3, 5, 6-tetrahydro-4-keto-6, 
6-dimethyl-1, -4-pyran-2-carboxylic acid, 
Ole SI One=8 ek ees Pe ee Ge eee 12 2 WwW 48 98 2 +3.9 
6-Chloro-1, 4, 2 - benzothiazine - 3 - (4) - one, 
CCE CINIO Seen eae 1 2 A 33 88 0 +5.8 
5, 5-Dimethy] acridan, CisHi;N...-.---------- 12 2 W 49 71 0 +8.1 
Huby) ester Oleor pycibydre 2 eters, eee : 
met -1, 4- pyran -2- carboxylic aci : 
Ganon ae sc ae Amar id 12 2| WwW 40 95 0} +3.5 
-Trimethyl- 1, 2-dihydroquinoline 
‘ a es ee 12 2) WwW 45) 100 o| 43.9 
Memithones © 1abi10 On eae eee 9 1 L 97 83 11 | 
ManvHonen@ pH sOy ete se cess sete LES 1 1 L 85 60 24 +6.3 
Xanthyanol. GisbOs! es fo ee 2 ose g 1 L 96 88 1 = my 
bis (9-Xanthyl) ether, C2sH1g03______-_------- 1 1 Ww 77 88 0 +4.9 
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