■ -6- 
CERISTIE, F. R., and COBB, G. S. (16) 
The inefficacy of methyl bromide fumigation against the chrysan- 
themum foliar nematode [Aphelenchoides ritzemabosi (Schwartz 
1911)]. Eelminthol. Soc* "iVaslT. Prac. 7: 62 ^ 1940. 
Fumigation with methyl "bromide did not eliminate this nema- 
tode even r.hen the chrysanthemum plants were treated under the 
most severe conditions- that they were likely to tolerate, namely, 
fumigation with 5 pounds of methyl bromide per 1,000 cubic feet 
for 1,5 hours at 70° F. under 15 inches of sustained vacuum. It 
is likely that such treatment will also be ineffective against 
the strawherry bud nematode ( Aph e 1 en c h o i d e_s fragariae Ritzema Bos, 
1891). 
DER0BERT, L. (17) 
L T intoxication prof essionelle par le bromure de methyls. Gaz. He'd, 
de Strasbourg 99: 179-184. 1939. 
A review giving sources of intoxication and literature on 
toxicity of methyl bromide. 
DEUTSCHE GESELLSCRAFT FUR SCIAJXINGSBEKAHPFUNG m. b . ' E. (18) 
Insecticides. French Patent 835,883, Jan, 5, 1939, 
f 
An insecticide is described consisting of a liquid of rela- 
tively high boiling point (e.g., alcohols, aromatic and aliphatic 
hydrocarbons, esters, and ketones) and an insecticidal substance 
of low boiling point (e.g., methyl bromide, chloroc^anide, ethylene 
oxide, dimethyl amino, methyl mercaptan, and phosgene). The liquids 
may be absorbed in diatomite. 
D0N0H0E, H. C, JOHNSON, A. C, and BULGER, J. W, (19) 
Methyl bromide fumigation for Japanese beetle control. Jour. 
Econ. Ent. 33: 296-302. 1940. 
Complete mortality of the adult beetles is obtained by doses 
of 2 pounds of methyl bromide per 1,000 cubic feet for 2 hours at 
18,3°-32.2° C. One pound per 1,000 cubic feet suffices at 24,4°- 
32°, and 0.75 pound at 25°-30°. A method for treating refrigerator 
cars is described. 
and JOHNSON, V. ... (20) 
The effect on plants of methyl bromide fumigation in Japanese 
beetle treatment tests; preliminary report. U. S. Bur. Ent. 
and Plant Quar. E-482, 14 pp. 1939. [Processed.] 
Complete control of immature stages of the beetle in green- 
house and nursery stock was obtained by fumigating the plants with 
methyl bromide (2.5 pounds per 1,000 cubic feet, including the 
load) for 2„5 hours at a minimum 'soil and air temperature of 63° F. 
In tests of 187 genora of plants representing 503 horticultural 
varieties and unnamed entries, 6,6 percent showed injury or sus- 
pected injury sufficient to render the plants unsalable. Injury 
was most coivmon (12 percent) among growing greenhouse plants. 
Among the dormant and semidomant plants only 3,2 percent were 
injured. 
