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EUROPEAN' CORN BORER 
During 193 the European corn borer ( Pyrausta nubilalis Huebn,)in the 
Great Lakes district is knovm to have infested territory to include a strip 
of townships frorn 10 to 30 miles in width contiguous v/ith the territory 
known to have been infected last year. Borers were discovered as fS.r as 
the western edge of lASerteTCounty, Indiana, about 20 miles from the Illinois 
Stafe line; to the southv/ard as far as the southern limit of Fayette County, 
Ohio, about 50 miles from the Kentucky State l;j.ne; to the northward into 
Mackinac County, Michigan; and to the eastward as far as the Connecticut 
River Valley in southern Vermont, Massachusetts, and northern Connecticut, 
Probably due to reinf estation from neglected districts in Rhode Island, 
a decided increase in intensity of infestation developed in New England, 
The spread in this region was of little importance except in eastern and 
southeastern Connecticut where the borer was discovered in a total of 23 
townships immediately adjoining the infested territory, 
JAPANESE BEETLE 
"During 1927 some evidence was obtained which indicated that the Japanese 
beetle ( Popillia .japonica Newm.) was less numerous than in previous years 
in the areas which have been infested for the longest time. Surveys dur- 
ing 1928 of the abundance of the larvae and adults nerwe to confirm this 
view. The heavily infested portion of the Japanese beetle's range may be 
subdivided into four more or less concentric areas or zones, 
"The central area, or Zone 1, includes those districts in which the 
species has been longest established and in which it is now undergoing a 
reduction in number. This includes portions of Burlington, Camden, and 
Gloucester Counties in New Jersey and the northern portion of Philadelphia 
County, adjacent to the Delaware River, in Pennsylvania* 
" Surro\inding the first zone is an area of 2 or 3 miles in width in 
which the beetle population is essentially stationary. This includes a 
zone in New Jers^ beginning at Florence in Burlington County and extends 
in a sw^eeping curve through Mount Holly, Indian Mills, Berlin, and Sewell, 
and terminates in the vicinity of Psulsboro in Gloucester Coxinty, The same 
zone in Pennsylvania appears to be quite narrow and includes Brifetibl, 
Bu.stleton, Cheltenham, and the northern environs of Philadelphia* 
"The third zone is somewhat moue extensive than the second and includes 
those localities in which the beetle population Inas recently undergone 
a marked increase and now represents conditions of maximum ab\indance. It is 
limited to a series of detached areas in New Jersej' which if connected 
would form a rather wide area outside of Zone 2. This includes Trenton, 
Bordentov.Ti, V/illiamstor/n, Cross Keys, Columbus, Pemberton, and Pitman, in 
New Jersey, In Pennsylvania it forms a more compact area embracing a series 
of communities extending from Somerton in Bucks County southeastward through 
Philmont, Rydall, Jenkintown, Glenside, Germantown, Fairmount Park, and 
Sharon Hill, 
"The fourth znne embraces those areas into which the beetle has pene- 
trated so recently that it has not become more than moderately established,- 
and includes a territory averaging between 3 and 4 miles in width entirely 
cuttounding Zone 3, 
