= 
BULLETIN 1318, U. S. DEPARTMENT OF AGRICULTURE 
TABLE 1.—Results of fumigation tests on weevils in glass flasks at room temperature 
(21° to 32° C.)—Continued 
Weevils killed after exposure 
for 24 hours 
S x 
S. . Tribo- : 
ory za Aes lium Plodia 
PNCES AW APAict Beer. a ee ce 
100 80 90 10 
100 100 LOO; ees eo 
100 100 OO. eee ae 
100 100 OOF e ee 
0 0 QOs|2-22 See 
100 100 100A ease 
100 100 1002 sees 
100s |= =e [00 Sea 
1G0y| 22h 100 Ss 2522- 
1 QOH (See sk LOO: est F =e 
LOO ceases OO 2 ease 
LOO se sbetskn 4 HOO sce Ss 
(05h Byars QU Peer 
HOOK): fete OF | vast Ske 
(Tal acetate” OL | esas 
100 100 TOQE eee 
100 100 FOO tek sets 
100 30 805|eSeeee 
0 0 SOs eee 
75 50 TO0) 222 as 
100 0 SOR 
100 100 NOOu | ee aso 
100 100 LOOT |e teese 
100 100 LOO! ese 
100 100 100322) te 
100 100 100: 22 
100 50 100s}! 2282 a= 
0 0 Of Panes 
100 100 TOOT aes 
100 100 1OUn | -2eeee 
0 0 O-Steer ss 
JOO} 2. 2 teks 100s bs eas 
TOQE Sees VOOR SS ea 
1003 See 0G); | sewers 
100 100 LOO SS 
100 25 LOO seta 
100 100 LOO! |e 
100 100 LOO 3 2 See 
80 25 100 |=2 se 
0 25 1 ag We Saehe 
20 0 0 0 
0 0 DFR Bee as 
0 0 OUR ee See 
0 0 0 20 
OOK |e 100: Seeee tee 
Of esa 1005/22 see: 
TOOh Ese seers 100. | ee eee 
1100p) eee LOOMS cs aes 
NOOR See ee 1003/2225 
eager a 0 el Re See 
Ba Mime pee | esp tas led [Vit] Bee wean ey 
poe Sr 0 () a HBSS, Se 
ref ere |e Sate eee Osseo 
100 JOON |S Sse es 100 
0 0 0 0 
100 100 100 100 
95 45 100 50 
100 100 100 80 
100 100 100 100 
0 (1 ee Se 0 
100 100 100) eee 
100 100 TOQa |= eee 
100 100 LOO oes 
100 100 100. | seeks 
100 100 100 100 
100 100 100 100 
100 100 100 100 
0 0 20 10 
0 0 75 10 
100 100 100 100 
100 100 100 100 
100 90 100 65 
95 0 0 65 
0 0 100 10 
Concentration 
of fumigant 
Tem- : 
Test No. pene Fumigant Niolar ‘Pounds 
per- per 
cent- 1,000 
age cul it. 
BROMIDES: a BL 
Gy (peas Cones Sie a SISO @Bromoformes. 22 sos eee 0. 94 6. 62 
SOSS A es ob ee 23:0") Ethylibromide== === 53. 50 | 162. 48 
Soe ae Papaya eames C6 Yo rales a ar 16. 80 51. 02 
SiGe ek eee AVY | eee GO. eae eae 14. 20 43.13 
BY ke ene eee a PAS ay | SoS 6 Ka eae ae DRE Eee = 5 8. 80 26. 73 
SeOre ase ke DAS Oe ve dolenes. 2.8 2 ae 12. 70 38. 57 
7a hoi Aes ala ST SY 77. U9 0 el aaa Arsen dO Se sae ee 8. 00 24. 30 
AQA 5s ee ee 245 Qs eee GOS Ne 28 BE. a eee 7.60 23. 08 
AQ a2 ee ees 253 08S CORE hss Eee: Ae 4.00 12:15 
COEDS. Spats Soak Soe Pals soe ae Ose es 4.30 13. 06 
Sp Dears eee ete 2SA0 Nees Gone. Se eee 3. 30 10. 02 
(ol) Ye apie os ene 23A0 5 ae (6 (0 ee ee oe ee ce 2. 90 8.81 
CAS ase As cota) ARO preeee (Vo pe essere ee mani F  8 lew 5. 16 
$20 2 e eee ee ee 2420) (ee ae PSE Oo ee eee 1. 20 3. 64 
CD) Es is a ee aoe PAS OE ONE ae ee eae . 70 2.13 
SOG. 22 Gs EN 23. 0 iethylelle bromide___------ 1.30 6. 81 
EYP 5 MRE QI Ee SID ISG net COE ss esteades eek ee . 50 2. 62 
YY feet hy sated eit Uh on Ove GOMeEreeS See S740) 1.05 
Die Sh ekee CSS EE, Desens Goren eke ae . 30 157 
ajo] bie oteeer rae Ra 24.0 |___-- ac BUM ca it 3 ek . 30 Way? 
Se fe Me REE te DAO | Ree NG Obie! tet 2 ioe A ke ea . 20 1.05 
Polke Nig tees pee ea 26.0 pane bromide: 2<--2es. 12.79 | 43.84 
De seca) Saher 26.02 GO ees cea Seen 13. 84 47. 44 
BOS see Cen. OAD) MN set sat (0 (0 eet cee NAN fk Rea A a 5. 50 18. 85 
a ES es ea a PARED nl (ee 3(6 (oye Ne ermine ee Ase 7. 26 24. 89 
S202 ae hee 2455 [Lee Oe A oe oe Se 5. 54 18. 99 
Sh eae ee ee ZA Oi) ese | Os re ie 4.00 13. 71 
BOSS eee eee 24. Oooo GOQse es ee eee 4.01 13. 75 
AY ued ee lhe Ey | JAY ORES tee GOS eisai 4.90 16. 80 
SOO ee oe DAL Oe 2s SS GO. ee es ee 4.10 14. 05 
DSO sss Rie DASQ a ees Oats eile fA ae 2. 20 7. 54 
ASS Sb ya eee 26.0) Allyl bromides. = +. 2-25 15. 30 51. 59 
ASG Sites 2 ete 20908] oe ce ioe ae pa eee eee 8.00 | 26.97 
ASG sas Se Saas 250 tessa Oates 2 a se ee 3. 90 13.15 
Phe a Bat tay BO EP) 26. 0 nButyl bromide_-_ 2-528 Be2te|p 20: 12 
oR, a PAR) aes dots es 5.30 | 20. 24 
BO eee pe 25 SO eee Outi te ee 2. 64 10. 08 
OD Ee ase 25. Oats ee os ee Ae ae 2. 56 9.78 
A Se Pee ee 775) (eee COE ss oi sa eRe 1.63 6. 22 
| ( jor acon eR ey ZANO a eee Oa a a a SS 1.09 4.16 
Tye 5.2 aig ce SPIE AY 5 32.0 | Bromobenzene--_-_-------_- LG 3.00 
20 eee oe ae PRAY ge aos e pe Mae ren Seri . 56 2. 45 
Oe Ue Ee PU (EN (9 XQ te NOES Ae ea SOD 2.41 
pSee te Da eke 30. 0 Benzyl promidel=2-2 =a 12 57 
CHLORIDES 
US eee ae ae ele 25.0 | Methylene chloride_--____- 39.50 | 93.51 
5202 ee ese PA aa Ore Sessa ws 5 oe 8.10 19.18 
1B) Z, Wisi case ou PAR S(O) ey os (0 0 Se) Seen EMRE 16.80 | 39.77 
BD GUIS eas Pe B28 250) [aes GOS 5 oS i a a ae 14. 20 33. 62 
bale es See O50 ease Ors sae rs Eee 4.40 10. 42 
ESBS esa sy te Pactolus GOES Se or eae 3. 40 8. 05 
So Kee a ae ee PASAU) | [eee Gower Fo hte eee 2. 20 5. 21 
O82 sacra tee 28. " eae 2 GOLs see.) 2 os aa ee 1. 20 2. 84 
DOO eee Ee Prev D) tee Gouin foe a ae 1.10 2. 60 
Gt eae MeN Oh 31.0 Chioroform Di hy eae 20.00 | 66.55 
60s 282 py eee Goines ee 2. 30 7.65 
AOE Ae ede ay: 30203) s2==2 OM eh ae 15. 00 49.91 
NO4 pees eS bys PARTS (fo ee COE see oe as Ee 3. 20 10. 65 
1OG2 ses 52S Pas 29 Onze: Cote ee th ae ee 7.00 23. 29 
109 ee ee coe PED) roe ok CO re ee eae 13. 90 46. 25 
Alero ser tent _.._-| 30.0 |Carbon tetrachloride__-_____ 2. 00 8. 58 
DOO tk BN ee SS = Dove 2330) See Ones see od ae 10.05 ; 43.09 
PAD. ose oS ee 24: OF eee Goes ee ee ao 12. 21 §2. 35 
DAQECE. oeey hes 24. weeps OE ee 2b es a 10. 31 44.21 
AG | se INS aE BES PRY tay | GOSS ia aa ie 6. 86 29. 41 
SOe ee a 28.5 |Ethylidene chloride_______- 20.00 | 55.16 
a ais es es Se es PAatay |i oa ro (oe ORI Meee a 3 10.20 | 28.13 
5G eee eg Bo 26508 ses22 (0 Ko A eae a SP ee Cera = 10.90 | 30.06 
1 at! eet ata 26% by ae GO ea Aa Se 2. 00 5. 52 
I oP arse See ee EN Ze ON eae GO oe Uae Ee 1. 30 3. 59 
Fete ies Shad ohatia. IBe ee) 28. 5 | Trichloroethane_-__________- 4.00] 14.87 
a bes 2 es eee ee PRD) Pees GOS esp 22h ee 3. 80 14. 13 
TS eg ie Se Te PASO) |e oe as Otis SoG Sea 1.90 7.06 
QO iat her she. ie 30 Obzess = dose ee - 90 3. 35 
23s shits a Ces BOLOnl eee Goes a eee 48 1.78 
