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(standard error) infested with a population of 51.6 plus or minus 2.5 
borers and 11.3 percent lodged; whereas the untreated corn was 76.4 plus 
or minus 0.9 percent infested with a population of 73.5 plus or minus 2.5 
borers and 25.9 percent lodged--a difference of 19.9 percent infestation, 
el.9 borers per 100 stalks, and 12.6 percent lodging in favor of the 
Sprayed corn. The dusted corn was 52.4 plus or minus 2.5 percent in- 
fested, population 48.6 plus or minus 3.2 borers, and 14.3 percent 
stalks lodged, whereas the untreated checks for the dusted series were 
77.7 plus or minus 2.3 percent infested, population 73.3 plus or minus 
4.5 borers and 23.7 percent lodged--a difference in favor of dusting of 
eoeo percent infestation, 24.7 borers per 100 stalks and 9.4 percent 
lodging. iar 
‘Corn borer _in squash.--A rather interesting case of infestation in 
squashes was investigated early in the month by B. E. Hodgson, S. 0. Hill, 
and H. J. Cronin, Arlington, Mass. A report was received that the stems 
of squashes were being badly infested with corn borers and a visit to 
the farm concerned proved this report to be true. Dozens of the squashes 
had infested stems, sometimes 4 or 5 borers being found in a single stem. 
The borers were feeding in the soft outer part of the stems, none being 
found in the harder center or in the fruit. An examination of the field 
revealed considerable barnyard grass infested by the borers. It wes 
evident that this grass was breaking down because of the cold weather 
and as a result of the work of the borers, thus causing the borers to 
abandon these quarters. The squash stems were the most readily available. 
succulent food into which the borers could migrate. Subsequent cxamina- 
tions of the squash in storage revealed that the borers had abandoned the 
stems:and that apparently none had entered, or in any way injured the 
fruit. This incident is rather interesting because very few observations 
have been made on the attack on squash by the corn borer. The few 
records we have indicate that when the borers are very abundant they 
sometimes feed in the leaf stems and the young tender fruit of this 
piant. (It is recalled that in the early years of corn borer investiga- 
ticns (1919-1922), borers were found entering the stems of mature squash, 
ready for market. In fact, quarantine action was contemplated at one 
time to insure the remove. of the stems from such squashes. This was 
noted particularly in the Boston marketing district. Mr. Hodgson's 
observation corroborates the early occurrence of this phenomenon. D. J. 
Caffrey .) 
Corn borer parasites.--W. A. Baker and assistants, Toledo, Ohic, re- 
port that Lydeila grisescens Mecig. continues to appear in practically all 
localities where it has been released. It is particularly evident in 
Lucas and Erie Counties, Ohio, and in Monroe County, Mich. Supporting in- 
formation ccntinues to indicate that this parasite may normally be ex- 
pected tw react most favurably to environments typical of the entire 
shore of Laxe Erie. 
Chelonus annulipes Wesm. became initially established in Lenawee 
County, Mich., following a release in that area of about 1,000 adults 
during the oviposition period of the host. 
yan 
