FUMIGATION AGAINST GRAIN WEEVILS 
5 
TABLE 1 Results of fumigation tests on weevils in glass flasks at room temperature 
(21° to 32° C.)—Continued 
Tem- 
« Test No. pera- Fumigant 
ture 
CHLORIDES—Con. | °C. 
26th ope = ab a. a 0 |Trichloroethane_-_ __---_--~- 
ADP. PR LE ASO iw iwe ee Oe 
AQ: Bo tt oh RS a Oe. - (Gu eee = 
L |) ete se eegere oss 263 Q)¥ao == OC aS We ee 
HOS sso ae 2420) eee (OU). Sk eae ek ee See 
5052! 266 24:0) Bes. CL eee ee ee 
OSB een eT 2330) ERs COL 3 ee 
LG HS NEP seh te DAS Oy) Pia OCD ea ede Oe co ee 
92624 ties oe a 25:0! put = ONE Se ee es Se 
LF 7 eerenenmet ne? teh 2 25: 0F pee CQ ee ee 
528, 529 ee 2650 pee Gowers Pees 
52 eee eg 255 Oh ee OOo ee 
Ho ee PSG) ae OC See ans 7 
GGE2S tie oe 28. 5 |s- FE Be a. ET La =2 ae 
hc pee ra ee me mrs 8 295 is = (0 (oe: SE ee ae 
OG 83 As ty 305 One = 0 (0s ne nee aa 
OSE eae aba: Sis (0\|/ See C6 (FL pe cereals SE 
100} Sah A a 305Q) ea 6 gyi = ye Oe pas 
py (ee ee Se SIC 28.5 |Ethylene chloride__________ 
ee ee) eee eS 28) Gi hee | Oise ee ee ees 
WIGS ssee 2 8 5 oe 295 0) fae Gari Sa 
213 Ke at oe ee a 295 Ore 6 (oo Sa oe 
je Se eee SOLO ass Oj 2S ee Ss ee ee 
fe a eae SOE Q: Peek CS ee a Gee hae 
Siar eed Bes 31. 0 | Trichloroethylene__________ 
eal eee ee 30: Qi peek =< Cigar a 
O7 ei es ds 30: Ql psiee = CONee 2 ie ae 
99 <b ay Sohn eS 30: O) eee (3 (ae a cee re 
i pAb ee a Bee SON Oi pes OC SS ee ie ee ae 
TAGE ope SONG) feee oe OS ee Oa ee 
P5022 ee Sed 30:0) Peer CaaS Had Se 
y= a ee oe se 0 | Tetrachloroethylene________ 
Hipet ete a0 26 Or pekg 30 an Se ee 
HY (re Sey eee Be = Qe i ° he ee ee ee ee 
LY Yfke. = = Det BP PAA) eee yes “Ee Re Se ae ee 
Fed cgeree: ap 32. 0 acanuleae dichloride_____- 
4a Ne? a poh ee 29° 0; eee Ee ONDE SS ee Re ae ee 
PSS eos BO: Qs eu OU ie ee ea 
TAQ a ee go SOS ee GG ee ee eee 
SoGLS Hep ee 26.0 | Propylene dichloride__-___- 
BOW fee oe 2650 ea Gorge Sag a 
BBS pwn coe | Say. 26: Oise = Go eae Tt 
DOO ase ee 2720 eee Oana ee aE 
iy (Easy ome fee DiS jee oe GO ss0 AAS ares 3 
Li ee See Be Peo Ss OT Sak SES Oe Se ee 
CAG? es Spey ane Beate ZO |e COVE Oa 5 EE ee ees 
OD Fa eS a 28.5 | Isopropy! chloride________- 
foe a eee 26.0 | Monochlorobenzene-_--_--_-- 
7 Ae Ee oe eee tare 2650 ee CL Ee ee 
5 ae EE ge ee 26507 2 C0 = Sa ae ee 
CES, GaSe a 26: Q:tec Oa es Ge Rie eee 
(anes See Beate Be Sy 30.0: (ie Ss ES EP See eee 
cf ae SS ese 3050: eee dp rezeee ee 1 
] ye a Se foe 29-8 pees. OCT a eee SF a aS poet © 
1} 23 Re pees Ee S050 peer 0 Ba et og ie 
Lj eeraet es lapel Ee 2825 fee OS (Be ae ee 
1 2 a eae Be Se 30. 5 | -o-Dichlorobenzene _-______- 
Li (ue Sens eee perses 26.0 Be Dipletopeusens ait Bee: 
QE Bee = 9 BU Mies OO eee ee 
Gesell Ba prey 30.0 | 0 aan} p-Dichlorobenzene- 
1p ees eens SOLO ses GO er ae 
FLUORIDES 
460 9 es ee 24.0 | Fluorobenzene-_-____-_-___- 
AGG Tae: ees eu 24 Qi (OTP ae aa! En eee ee 
BGO ot er eT 24.0 ee (61 d)aS Se Sat Sole ea eee 
<A ifs Sore ain AN ee OO Seek. be SO eae 
cf, Oe Tay eel OAK) ein GO ee et Se 
AIG Da oh 23 'OFar Gh NES ee ioral As Beamer, 
GOR sae oot 30.5 | Difiuorodiphenyl_______-_- 
IODIDES 
BUDE Bi ae pon 25.0 | n-Butyl iodide -___________ 
BOS ae epee Boe 25. Oi hee GAQsaoseo pee oe 
OLGR=e sate = ted, Aa a leas ae Os ees ee age 
oe een peed At Aa al eee GOSS 22 Se eee eee. 
GAO ee is DA Outre GOs er et 
Concentration 
of fumigant 
Molar |Pounds 
per- 
cent- 
age 
Weevils killed after exposure 
for 24 hours 
S. “ 
: Tribo- F 
gran- : Plodia 
arius lium. 
Pct IPcearke Ce 
0 70 0 
Bf 5 oe LOO: were 
ee TOO} SSeen = 
sty TOOK |S eae 2 oe 
RSE O} |S ae 
SE ULe ee LOO; Eee 
ae Uy ee 
Se ee (fe et ee 
roe eae HORE: ae 
Sesh ees d isye| (ET eel 
fecyape os 2 OO eae 
Roa LOO} aee ss 
See Ti eae 100 eet ee 
0 0 50 
100 100 100 
60 100 90 
50 100 90 
50 100 60 
100 100 100 
100 100 100 
100 100 100 
50 100 85 
0 100 25 
20 100 20 
100 100 100 
100 100 100 
0 0 10 
100 100 100 
0 0 70 
60 100 20 
15 80 0 
100 TOO3|2 22aee 
0 TOO: |e ee as 
0 OE eat ee 
0 ON sas eee 
100 100 80 
100 100 100 
100 100 100 
0 $0 0 
BPO beta i (3) 1)3) oye eee 
ee eal TOO Mester ees 
pane Beas 100 [as== 2 
rnd cos LOS wane 
path) eet SOs|eees os 
aces tee 6GOTaeee 
eS oe Ora 
0 65 50 
Gees cou 100) | esac 
(Ql Seslebaeentear oes 0 
0 80 100 
LOOK SES T= 100 
SOF eee 100 
Pa itl (epee 20 
DOS ea eee 20 
100 100 95 
0 6 0 
Eien 50 
(Ye Vee ele Be 100 
LOOM eee ate hee 
SOV EEE eee 100 
geen, Stead LOOT RSS ee. 
se oe 100" |e 
Reape eh TOON Pees <2 
fy gts Baek a) [Pe 
ela what LOOT EGer ares 
get ia oe PAS bers Sle a 
0 0 10 
100 LOO sR 
100 LOO MES 
100 100/23 
0 Ul bes Sista 
0 Oss eet = 
