INSECT PEST SURVEY B.U'L L E T I IT 
Vol. 1^ Summary for 193^ No. 10 
INTRODUCTION 
The wo at lie r during much of the year showed wide departure from nor- 
mal over the entire United States. Depomber 1933 an( i January 193^ were 
abnormally warm over muoh of the country. However, during the last week 
in January a cold wave spread eastward and southward from the Northwest 
to the Atlantic. During February the cold continued over the eastern 
half of the United States, while abnormally warm weather prevailed over 
the western half, particularly in the Northwest. Much of the northeastern 
part was covered with snow during most of the month. 
During March the rainfall was deficient in the States that were to 
suffer from drought later in the season, but was normal from the Missis- 
sippi River eastward to the Atlantic. 
April and May were warm and dry, over the whole country, and oy the 
end of May the most extensive drought in climatolrgical history of the 
United States had developed in the interior Northwestern, Midwestern, and 
Southwestern States. During Juno, the condition was somewhat relieved in 
the Dakotas, Minnesota, and Wisconsin, but remained about the same over 
southern and western parts of the dry area. July normal temperatures, the 
highest on record in all the States except California and Washington, great- 
ly intensified the drought. 
The unusually mild weather in the Northwest was favorable to insect 
pests-, while the severe cold weather in the East proved detrimental to 
many species in hibernation. The dry spring was favorable to chinch bug 
development, but the drought that followed was detrimental to several 
ether pests. 
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STATO P/ ANT HOARD 
