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beans. The infestation in the New England market-garden areas was most 
pronounced in the vicinity of '.V'oburn, Arlington, Winchester, Dighton, 
and Somerset, Mass., and Newport and Bristol Counties, Rhode Island. 
(Division of Cereal and Forage Insect Investigations, Bureau of 
Entomology, U.S.D.A. ) 
Chilo siraulex Butl. 
Chilo simplex Butl. has been less destructive than formerly in 
Hawaii owing to the introduction and spread of natural enemies. The 
first crop of rice showed nearly normal yields, but the second was not 
so good. 
JAPANESE BEETLE 
The section generally infested by the Japanese beetle ( Pooillia 
jaoonica Ke-m.) was extended in 1929 principally on the north and south» 
The section longest occupied, including Riverton end Moorestown, IT. J., 
was much less heavily infested than in 1927 and 1923. The heaviest 
infestation in New Jersey occurred in the cities of Trenton and 
Bordentown and in the townships of Florence, Springfield, and Mansfield 
on the north; Monroe, Glassboro, Clayton, Harrison, Mantua, Washington, 
Gloucester, '..'inslow, East Greenwich, and ¥est Deptford on the south. In 
Pennsylvania the area of heaviest infestation is more uniform and extends 
as a band from 2 to 5 miles wide surrounding the city of Philadelphia 
starting at a point on the Delaware River between Bristol, Pa., and 
Trenton, N. J. , and swinging westward around the city almost to the 
Delaware River again in Darby Township. The area of well established 
infestation is now hounded by a line drawn from Point Pleasant on the 
New Jersey coast northwestward through the city of New Brunswick, and 
westerly to the Delaware River at a point sligntly north of Lambertville; 
in Pennsylvania the line extends southwesterly through the townships of 
Plumstead, Hatfield, Skippack, Upper Providence, Charlestown, Sdgemont, 
Concord, and Bethel; in Delaware the line extends through the township of 
Brandywi ne and the city of Wilmington and crosses the Delaware River at 
New Castle. The line then crosses the southern portion of New Jersey in 
almost a direct line to Ocean City on the coast. The damage in 1929 in 
the most .-.eavily infested areas was about the same in degree as the 
damage in similar areas in 1928. The most striking feature of the year 
has been the continued reduction of the beetle population in the central 
portion of the infested area. Extensive control campaigns, either as 
spraying operations against the adult beetles or in the application of 
soil treatment to destroy the grubs, have been conducted successfully in 
many communities. Many additional colonies of imported parasites have 
been released by the Bureau of Entomology and the outlook for the natural 
control of the insect is even more hopeful than it has been in the past, 
(Prepared by Japanese Beetle Laboratory, Bureau .of 'Entomology, U.S.D.A. ) 
