
=~ Lhe 
An average yield of beans from 200 acres would be 1,000 sacks. The loss 
of 870 sacks of beans was undoubtedly caused by the pod borer.” 
J. R. Douglass, Estancia, N. Mex., submits a summary of findings 
in a study of the hibernation of the Mexican bean beetle (Epilachna 
corrupta Muls.) in which he states: . "Successful hibernation of the 
bean beetle in the Estancia Valley is confined to the western yellow 
pine (Pinus ponderosa Law.) association of the transitional life zone, 
especially where oak trees are associated. * * * The evidence at hand 
indicates that beetles could not hibernate above the Coloradan zone 
(7,000 to 8,500 feet) if adequate hibernation material was available. 
Evidence secured for several years shows that beetles could success— 
fully hibernate below the Coloradan zone, if adequate hibernation ma-— 
terial was available. The upper limits are determined by low temper— 
ature and moisture. * * * As the temperature decreases so do the mois-— 
ture requirements for successful overwintering. * * * During hiberna- 
tion seasons with cold wet springs a larger percentage of the beetles 
survives on the warmer slopes than on the northern slopes. On the east- 
ern slope 4.91 per cent of the beetles survived in cage No. 7, as conm- 
pared with 1.39 per cent survival in cage No. 5 on the northern slope. 
Again, on the southern slope, 11.54 per cent survived, as compared with 
8.37 per cent survival in cage No. 10 on the northern slope. During 
warm, dry seasons a larger percentage of beetles survives on the 
northern slopes." 
From observations on the tachinid Paradexodes epilachnae Ald., 
parasitic on the Mexican bean beetle, B. J. Landis, Columbus, Ohio, 
found that "of the (48) maggots (placed on moist soil) 57 per cent pu- 
pated at a depth of 1 inch or more elow the surface. The greatest 
depth at which pupation occurred was 4 inches. Forty-six per cent 
pupated with the anterior end up; 25 per cent with the posterior end 
Tnoand 29 per cent were horizontal to the surface of ‘the soil, * *) 
Of a cage of flies emerging in October, one individual lived 72 days. 
The stock from which this individual came had been bred in the labora-— 
tory since September, 1930." 
C. F. Henderson, Twin Falls, Idaho, reports that from dissections 
of a large number of preserved beet leafhoppers (Eutettix tenellus 
Baker) collected in the summer the parasitism by pipunculid parasites 
ranges from none in sweepings made July 13, to 46.1 per cent in sweepings 
made September 11. Mr. Henderson says: "It is interesting to note the 
high percentage of parasitism of Agallia sp. by an unidentified sty- 
lopid for two points in the Hollister area on July 14, 1951 (50 and 
61 per cent, respectively). Only one E. tenellus in over 100 indi- 
viduals collected in the same sweeps with the Agallia sp. was found 
to be parasitized by a stylops." : 
R. E. Campbell and M. W. Stone, Alhambra, Calif., report an expe- 
riment "To determine the effect of applications of sulphur to the soil 
and to the larvae, pupae, and adults of (the wireworm) Pheletes cali- 
fornicus Mann." Following a description of details, the report says: 
