ete 
C. K. Fisher, Mcdesto, Calif., states that "The month of December 
has been spent almost entirely in the examination of warehouse bean sam— 
ples (to determine the need of fumigation of the crop concerned). To De- 
sember 28, 3,715 samples have been collected and all examined once for 
weevil infestation. Of this number 1,416 were found to be infested, giv— 
ing a percentage of 58.1 per cent infested." Mr. Fisher also reports 
that 12 fumigatoria in bean warehouses have been tested for their effi- 
ciency. These fumigatoria are all used for fumigating consignments of 
beans delivered at the warehouses by the farmers and found by inspection 
to be weevily. The results ranged from 57.6 to 100 per cent kill. 
7 Tom Brindley, Moscow, Idaho, submits "tables to show the results 
of a study of harvest loss and its relation to pea weevil infestation on 
20 farms in the vicinity of Moscow, Idaho. The loss per acre was deter— 
mined by picking up all of the peas lost on plots 10 feet square in rep— 
resentative parts of each field. * * * The maximum loss per acre was 
found to be 50 per cent of the possible yield on a field harvested by 
the combine methcd, in which the peas actually harvested averaged 690 
pounds per acre. The minimum loss was 7 per cent on a combined field 
which yielded 1,428 pounds per acre. The average loss for the 20 fields 
was 33 per cent of the possible yield. On 11 fields harvested by the 
combine methcd the average loss per acre was 29 per cent; on 6 fields 
harvested by the stationary thresher 32 per cent were lost; while on 
3 fields harvested by other methcds the loss was $8 per cent: It is 
evident from these figures that the combine methcd harvests more peas 
than the other methcds." 
Mr. Brindley submits tables and a graph showing the relation of 
the location of the pea ped on the vine to infestation by the weevil. He 
says: "The average infestation at the base of the vine, as shown in 
the summary, was 62.4 per cent, while at the top of the vine it was 
19.7 per cent. This point seems to me to have a great deal of bearing 
on the weevil problem, for in faulty harvesting the tops of the vines 
are Often the only parts harvested, while the lower pods which are the 
most heavily infested are allowed to remain in the field, permitting 
the weevils to escape and find gocd hibernating quarters." 
Mr. Brindley has also made a study of the relation of hills and 
valleys to weevil infestation, and states: "I have found it to be almost 
invariably true that high points are less infested than low points. 
Hills along the border may have a lower infestation than valleys in the 
center of fields if a mcderate infestation is present." 
On November 30 E. M. Livingstone, of the cured-tobacco investiga— 
tions, Richmond, Va., completed 174 egg—to-adult rearings of the para- 
Site Microbracon h3betor (Say), an active parasite of Ephestia elu- 
tella in certain tobacco warehouses. Concerning these rearings W. D. 
Reed reports: "The developmental periods average as follows: 
Incubation perdodszc.. eee 2.5 days 
Larval mer] Cait clio 9.4 days 
Pupal, period.’ cc. ee een ones 7.4 days 
Egg—to—adult period... ees 19.1 days 
