INSECT PEST SU RV EY BULLETIN 
Vol. 8 Summary f»r 1928 No. 10 
INTRODUCTION 
The year 1928 as a whole '"as not one of strikingly abnormal weather 
conditions, January was characterized by the strong cold V7ave that during 
the first few days of the month extended from the plateau region eastward. 
The month as a Tvhole, however, was above normal in temperature with 'the 
exception of the South Atlantic and Gulf coastal plains. There was a 
general deficiency during this month in precipitation with large areas with- 
out snow-cover. February was free from severe weather and the mild tempera- 
ture continued over the greater part of the country. Precipitation remained 
below normal v/ith increasingly large areas without snow-cover. These condi- 
tions prevailed during March* ' ' , 
April brought decided change in the weather^ This month was characterized 
by persi'tent cold and frequent ^late killing frsssts. Precipitation was abun- 
dant and very excessive in the Southeastern States » During May the tempera - 
ture was uniformly above normal in the western two- thirds of the United 
States and below normal in the eastern third. Precipitation was generally 
deficient* 
Very low temperature for June prevailed over the eastern two-thirds 
of the country- Rainfall was more frequent than during May and in many cases 
was very excessive. July and August were about normal. The latter month 
showed excessive precipitation along. the Atlantic seaboard and in the 'upper 
Mississippi Valley, September will be remembered ' by the severe tropical 
hurricane that came in over eastern Florida on^September 16. The temperature 
as a whole was below normal over the eastern two-thirds of the country. The 
earliest killing frosts in the past fifty years were experienced during 
iate September in the region represented by Louisville, Ky,, and Peoria, 
Illinois. During this month there was a widespread deficiency in precipitation. 
The remaining months of the year were not unusual- Coupled with these 
quite normal weather conditi'->ns was a year of but few striking entomological 
developments. Many insects were decidedly below normal and but few reached 
such peaks as have attracted attention in previous years, 
GRASSHOPPERS 
During the early months of the year a survey in the Klamath Falls 
district of Oregon indicated that a serious grasshopper outbreak was to 
be looked for in the spring. Later developments bore out this prognostication. 
In the .Tule Lake district of California and southern Oregon grasshoppers 
were numerous enough to occasion extensive control campaigns. In one of these 
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