Vol .3 
May 1, 1923 
No .2 
OUTSTANDING ENTOMOLOGICAL FEATURES IN THE UNITED STATES FOR APRIL ^923 • 
In reviewing the general entomological data accumulated "by 
the Survey during 1921 and 1922 and comparing these with the data so far 
received this year, it appears that the entomolcgic&l season is about two 
weeks later than normal* 
From present reports the indications are that. the Hessiar. fly 
will not be a serious factor in this year's wheat crop over r.ost of the 
important wheat-gro\?ing regions* 
The chinch bug is still a threatening factor in the Ohio River 
region and in the Upper "Tississip-pi Valley, ohe bugs having passed the 
winter successfully as far north as southeastern South Dakota* 
The Great Plains false wireworm is again proving a serious pest 
in western Nebraska* 
A telegraphic report has been received of a large brood of Mormon 
©rickets now hatching in north-central Wyoming* 
The codling moth wintered well in New York and Washington, 
deppite the cold winter, which killed over 25 per cant of the larvae which 
were above the snow-line in the latter State* 
Eggs of the several apple aphids were hatching as early as March 
30 in the Ozark region of Arkansas; April 7 in southern Idaho; April 9 in 
Indiana; and April 20 in western New York* 
" Infestation of t he fruit-tree leaf-roller is rapidly increasing 
in Idaho* This year the egg count indicates an increase of 300 per cent 
over last year's infestation* 
The San Jose scale continues to be a serious factor in apple 
orcharding in New York, New England, and the Ohio River States- In Indiana 
the region of serious infestation is extending into the northern part of 
the State* This insect is aiso a very serious pest in northeastern 
Arkansas • 
The pea aphid is seriously infesting the entire cannery pea 
section in Stanislaus County of California and a lighter infestation ex- 
tends over the Santa Clara Valley* This insect is also doing considerable 
damage to alfalfa in the vicinity of Topeka.KanS' The Kansas infestation 
-22- 
