Bee, 
H. W. Allen and J. K. Holloway report further progress with the 
rearing and distribution of Ascogaster quadridentatus Wesm. from one of 
these importations: "Emergence increased from 5,984 in July to 32,900 
in August. The breeding has now been reduced, 54,500 additional eggs 
being inoculated during August. As anticipated, it has proved relatively 
easy to breed this species in large numbers, and, if required, almost un— 
limited numbers could be produced." *** "The success in rearing this 
European introduction has permitted the liberation of 58 colonies in 
southern New Jersey totalling 28,160. These were liberated in lots of 
approximately 500 each, and only in peach varieties ripening with Elberta 
or later." *** "By using an adapted vacuum collector and special cloth-— 
capped vials, it has been found easy to assemble large numbers of para- 
sites in such a manner as to permit a uniform diffused liberation over 
releasement area. The unit releasement of 500 is assembled in25d tubes 
of 20 adults each. These are released one tube at every alternate tree 
in alternate rows, thereby obtaining uniform distribution for each lib- 
eration over a block of approximately one acre." 
In connection with investigations of the codling moth (Carpocapsa 
pomonella L.) at Wichita, Kans., during the month of August, Paul M. 
Gilmer says: "Work on temperature and development was carried further 
with special reference to humidity relationships. From data at hand 
there is strong evidence that humidity acts as an agency tempering the 
effect of temperature. At high temperatures high humidity will produce 
normal hatch, while humidities much below 90 per cent cause drying and 
death of eggs." 
A report on studies of the blueberry maggot (Rhagoletis pomonella 
Walsh) is submitted by L. C. McAlister, jr., Cherryfield, Me., who Says 
that "emergence under natural field conditions was about 10 days later 
than the emergence from cages." The outstanding results of control ex— 
perimenis are summarized as follows: "Three applications of calcium ar— 
senate at the rate of 6 pounds per acre reduced the maggot infestation 
in the berries at picking time 97.5 per cent; two applications of calci- 
um arsenate at the rate of 6 pounds per acre applied on adjoining land 
under almost identical conditions reduced the maggot infestation 92.0 
per cent; and two applications of a mixture consisting of 25 per cent 
calcium arsenate and 75 per cent lime, 6 pounds per acre, reduced the 
maggot infestation 83.2 per cent. The results from the use of calcium 
arsenate are about the same as those obtained in previous years. The 
results obtained bv the growers have been satisfactory in most cases.” 
During the month of August a study of the larval parasites of the 
pecan nut case bearer (Acrobasis caryae Grote) occupied the major por— 
tion of the time of C. B. Nickels and W. C. Pierce, Brownwood, Tex. Mr. 
Nickels reports that he "devised a method that will probably be satis— 
factory for rearing the parasite Calliephialtes grapholithae Cress. in 
large numbers. Two females, which mated under artificial conditions, de— 
posited a total of 46 eggs on nut case bearer larvae confined in small 
wire-—covered racks and one of those adults is still active. It is prob-— 
able that we wil] be able to breed this parasite every month in the 
year." 
