•571- 
.' 
SATIN MOTH ( Stilpnotia - shlicis L.) 
The 'satin moth has "been found -out side of the quarantine line in 
8 towns in Connecticut; 2 towns' lh'Massachusetts, one of which. 
(Williamstown) "borders the Vermont' arid "New York State lines; 1 town .-'. 
in Vermont, and. 9 towns in Maine. Ho infestation "beyond the quarantine 
line in New Hampshire was- found. as. a result of this work. This work is 
not entirely- completed so that recommend-ations for changing the present 
quarantine line Can not be made, at this time. 
■ ' EUROPEAN CORN BORER ( Pyrausta nubilr.lis Hbn.) 
Increase in* infestation of the corn borer over most of the 
territory is indicated by a summary of the field reports on the egg 
survey in the western area, which was completed on July 22. This 
under talcing, commenced on June 25, was conducted by the Administration 
in cooperation with the Bureau of Entomology. Sections of Hew York, 
Ohio, and Michigan were covered by the 22 :r.en employed, 20 of whom mr.de 
.the counts with 2 acting as supervisors. 
LESSER 3ULB' FLY (humerus strigatus Fallen) 
An "active general field infestation" of the lesser bulb flies in 
Tennessee, where the capture of one specimen earlier in the season was 
reported in the July issue, is disclosed through field observations by 
G. W. R. Davidson. Several adult flies were observed in most of the 
plantings, and in the Victoria variety they were quite numerous. In one 
Georgia planting a number of larvae of the lesser "bulb fly, some appar- 
ently full grown and others about half grown, were found in one veriety 
of bulbs immediately after digging. 
PIKE BOLLWORM ( Pectinoohora gossyniella Saund.) 
During the month of July, field inspection in the Salt River Valley 
of Arizona consisted of making infestation counts from 23 selected fields, 
20 of which are in Maricopa County and 3 in Pinal County. The results 
have all been negative. This is somewhat surprising when it is recalled 
that 2 of the fields selected in Pinal County and 9 in Maricopa County 
were infested last season. Also 2 of the fields in Maricopa County were 
found to be infested this season prior to the beginning of the infestation 
counts. This would seem to indicate that the infestation is still very 
light. • One of the most logical conclusions for not finding specimens, 
especially in the 2 fields where they were found earlier in the season, 
is that the bolls are now developing much more rabidly than the infestation. 
An infestation count Consists of the inspection of 100 bolls. 
Estimates were made recently to determine the number of bolls per acre, 
which was found to be 919,080. In examining 100 bolls from this number, 
it can be readily seen that the chances of finding specimens are very 
slight, except where the infestation is heavy. 
Field inspections have also been made in the Tucson area. By using 
10 squares or green bolls per acre, 1,225 acres have already been inspected 
