- 20 = 
In a report from S. E. McClendon, Thomasville, Ga., it is noted 
that "while times are hard more corn is probably being treated for (rice 
or black) weevils (Sitophilus oryzae L.) this fall than for two years 
Past." 
Reporting on life-history studies of the tobacco moth (Ephestia 
elutella Hbn.) at Richmond, Va., W. D. Reed says: * * * "Moths could 
be collected in the infested warehouses in the vicinity of Richmond 
throughout October. The mild weather during the month permitted de- 
velopment of larvae and pupae to continue, which accounts for the pres— 
ence of moths October 31." 
George B. Wagner, of the Manhattan, Kans., laboratory, reports 
very successful results with the treatment of flour mills with hydro- 
cyanic acid gas and by heat. The mills so treated with hydrocyanic acid 
gas were located at Blackwell, Okla., Hutchinson, Kans., and Topeka, 
Kans. The College Mill at Manhattan, Kans., was treated by heat. 
C. K. Fisher, Modesto, Calif.: "The month of October has been spent 
principally with the examination of warehouse samples for evidence of 
(bean) weevil (Mylabris obtectus Say) infestation. To date (October 
26), 2,343 warehouse samples have been examined since August 7, and 
809 of these samples were found to be infested with bean weevils. This 
gives a percentage of 34.7 of the samples infested, as compared with 
10.6 per cent at this time last year. The increase of weevily samples 
this year over last can be explained as follows: First, the bean market 
was very dull last fall and winter with very low prices prevailing, and 
as a result, many bean growers held their beans for a better price, and 
to avoid paying storage charges held them on the ranches over this summer. 
Most of these beans stored on the ranches were never fumigated and the 
few that were fumigated were not properly fumigated, with the result that 
many weevils were escaping from these beans and infesting the beans in 
the fields; second, the summer of 1931 was abnormally warm in California, 
probably causing an extra generation of weevils. This, in itself, means 
a great deal in bean weevil control." 
Perez Simmons, of the Dried Fruit Insects Laboratory, Fresno, 
Calif., reports a series of trials with sulphur dioxide at high con= | 
centrations and short exposures, made in cooperation with Charles Fisher, 
chemist stationed at the Fresno office of the Dried Fruit Association of 
California. "Dosage rates of 1, 2, 3, and 4 pounds of S02 per 100 cubic 
feet gave, in general, progressively better kills as the time of exposure 
was lengthened. * * * Complete kills resulted from exposure to the 
2-pound dosage rate for 3 minutes; to the 3-pound rate for 2-1/2 minutes; 
to the 4-pound rate for 1-1/2 minutes; while the l—pound rate failed at 
exposures up to 5 minutes. The fumigated raisins were analyzed for S02 
by chemists employed by the Essotoo Company, and Mr. Fisher reported that 
no added sulphur dioxide was detected." Various other insecticide ex- 
periments were reported, including the use of chloropicrin. Mr. Simmons 
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