BULLETIN 1313, U. S. DEPARTMENT OF AGRICULTURE 



Table 1.- 



-Results of fumigation tests on weevils in glass flasks at room temperature 

 {21° to 82° C.)— Continued 



Test No. 



Tem- 

 pera- 

 ture 



Fumigant 



Concentration 

 of fumigant 



Molar 

 per- 

 cent- 



Pounds 

 per 

 1,000 



cu. ft. 



Weevils killed after exposure 

 for 24 hours 



S. 

 oryza 



S. 

 gran- 

 arius 



Tribo- 

 lium 



Sulphur com- 

 pounds: 



115 



118... 



121... 



124 



127 



164 



165 



168 



170 



171 



172 



173 



174 



93 



29 



72 



152 



154 



157 



160 



163. 



216 



223 



235 



242 



256 



257 



258 



265 



266 



215. 



224 



236 



245 



261 



262 



264 



213 



226 



237 



246 



253 



254 



255 



263 



214 



225 



229 



231 



238 



402 



51 



77 



107 



110 



30 



31 



28 



90 



NlTRILES AND ISO 

 NITRILES: 



305 



310 



342 



346 



371 



372 



430! 



414A 



416 



418 



26 . 



425 



427 



429 



437 



438 



"C. 



28.0 

 29.0 

 30.0 

 30.0 

 30.0 

 27.0 

 27.0 

 27.5 

 26.0 

 26.0 

 27.0 

 27.0 

 27.0 

 28.5 

 31.5 

 32.0 

 25.5 

 25.5 

 26.0 

 26.5 

 27.0 

 26.0 

 23.0 

 25.0 

 25.0 

 23.5 

 24.0 

 23.5 

 25.0 

 25.0 

 26.0 

 24.0 

 25.0 

 25.5 

 24.5 

 25.0 

 25.0 

 26.0 

 24.0 

 25.0 

 26.0 

 26.5 

 26.5 

 26.0 

 26.0 

 26.0 

 24.0 

 23.0 

 24.0 

 23.0 

 24.0 

 31.0 

 29.5 

 29.0 

 29.0 

 28.5 

 28.5 

 30.5 



28.5 



25.0 

 25.0 

 21.0 

 22.5 

 26.5 

 26.5 

 25.0 

 24.0 

 24.0 

 24.0 

 30.0 

 25.0 

 25.0 

 25.0 

 25.0 

 25.0 



Carbon disulphide. 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



Ethyl mercaptan 



n-Butyl mercaptan. 



do 



do. 



do 



do 



do.... 



do 



Methyl sulphide 



do.... 



do- 



do 



do 



do 



do — 



do 



do 



Ethyl sulphide- 



do 



do 



do 



do— 



do 



do 



Methyl thiocyanate. 



do 



do 



do— 



do 



do.. 



do. 



do 



Ethyl thiocyanate— 



do - 



do 



do 



do — 



do 



Allyl isothiocyanate. 

 do. 

 do- 

 do. 



C y anogen sulphide 



MercaptoL. 



Perchloromethyl mer- 

 captol ... 



p-Toluenesulphoehloride . 



Acetonitrile 



do 



do 



do 



do 



do 



Propionitrile 



n- Valeronitrile 



do 



do 



Phenylisonitrile 



Phenylacetonitrile . 



do 



do 



do 



do 



46.00 



24.70 



12.30 



6.40 



3.00 



3.30 



2.50 



1.10 



1.00 



.50 



.47 



.50 



.11 



19.00 



3.00 



2.00 



5.40 



2.30 



.90 



.30 



.10 



53.80 



20.98 



9.45 



10.44 



9.75 



9.49 



5.00 



12.87 



11.54 



4.91 



2.92 



1.50 



1.72 



3.65 



3.72 



2.34 



1.84 



.78 



.36 



.20 



.20 



.14 



.09 



.10 



1.04 



.46 



.46 



.19 



.71 



.80 



1.14 



.70 



.34 



.62 



.10 



.16 



1.00 

 .15 



11.60 



12.13 



3.47 



4.97 



3.90 



5.70 



1.30 



1.10 



.60 



.30 



.12 



.10 



.03 



.02 



.07 



.03 



97.59 



52.40 



26.10 



13.58 



6.36 



7.00 



5.30 



2.33 



2.12 



1.06 



1.00 



1.06 



.23 



32.89 



7.54 



5.03 



13.57 



5.78 



2.26 



.75 



.25 



93.14 



36.32 



16.36 



18.07 



16.88 



16.43 



8.66 



22.28 



19.98 



12.34 



7.34 



3.77 



4.32 



9.17 



9.35 



5.88 



3.75 



1.59 



.73 



.41 



.41 



.29 



.18 



.20 



2.53 



1.12 



1.12 



.46 



1.72 



1.94 



3.15 



1.93 



.94 



1.71 



.23 



1.16 



5.18 



13.27 



13.87 



3.97 



5.68 



4.46 



6.52 



1.99 



2.55 



1.39 



.69 



.34 



.33 



.10 



.07 



.23 



.10 



p. a. 



100 



100 



100 



100 



100 



100 



100 



100 



100 



















100 



100 



100 



100 



100 



100 











100 



100 



50 



100 



90 



100 







60 



100 



100 



100 



20 



95 



100 



100 



50 



100 



100 



100 



100 



100 



100 







100 



100 



100 



5 



100 







100 



100 



100 



100 



100 











60 

 



100 



100 

 



100 

 50 



100 

 



100 

 50 

 

 



100 

 

 

 

 



p. a. 



100 



100 



100 



100 



100 



100 



100 



100 



35 



















100 



100 



100 



100 



100 



20 











100 



100 







100 







100 











100 



100 



100 



10 



80 



100 



100 







100 



100 



100 



100 



100 



100 







20 



100 



100 







100 







100 



100 



100 



100 











100 

 



100 

 100 





 100 





 100 



p. a. 



100 



100 



100 



100 



100 



100 



100 



100 



70 



















100 



100 



100 



100 



100 



80 











100 



100 



100 



100 



100 



100 



50 



100 



100 



100 



100 



90 



80 



100 



100 



100 



100 



100 



100 



100 



100 



100 







30 



100 



50 



100 



50 







100 



100 



100 



100 



100 











25 

 



100 



100 

 



100 

 



100 

 



100 

 30 

 

 

 90 

 

 

 

 



