CONTEXTS 
Page. 
Distribution 9 
Hibernation 10 
Spring, summer, and autumn migrations 17 
Oviposition 18 
Egg period and number of eggs deposited by each female 19 
Descriptions of the different stages of development 19 
Development and habits of the young 21 
Number of annual generations 23 
Gregarious habits of the chinch bug 26 
Food plants 27 
Losses caused ])y chinch bugs 2!t 
Natural checks 31 
Influence of precipitation on the chinch bug 31 
Influence of temperature on the chinch bug 38 
Natural enemies 39 
Parasitic fungi 39 
Fungous enemies of the chinch bug determined 41 
Field and laboratory experiments in Indiana 42 
First field applications of fungous enemies of the chinch bug 45 
The work of Professor Snow in Kansas Ifi 
Other insects attacked by SporotricMum globuliferum 17 
First artificial cultivations of Sporotrichium globuliferum 48 
Results of field applications in Ohio 48 
Meteorological influences favoring development of fungous enemies of 
the chinch bug 
A bacterial enemy of the chinch bug 51 
The practical utility of fungous and bacterial enemies in fighting the 
chinch bug 51 
The quail :»2 
Other bird enemies of the chinch bug 53 
The frog ;.:; 
Invertebrate enemies of the chinch bug 53 
Remedial and preventive measures 51 
Destruction of chinch bugs while in hibernation 54 
Sowing decoy plots of attractive grains or grasses in early spring 55 
1 difficulty of reaching chinch bugs in meadows .~>t> 
Watchfulness necessary during protracted periods of drouth T>7 
Utility of kerosene in fighting chinch bugs 57 
Utility of deeply plowed furrows supplemented by the use o( kerosene 
emulsion :>;< 
The ridge and coal tar method ;,;i 
Other barrier methods ft) 
Necessity for preventing chinch bugs from becoming established in fields 
of wheat and grass 81 
Summary of remedial and preventive measures 63 
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