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POA eMC LOEN ee reset SRN SS Se a Naa ha a's B Er Saat wheat arse 23 
Dist butilones coe secee-eece ss NSE CS OREO RS Oa ESE See eee eee 23 
Descrption and number of wenerations 2.4... 22-..-22252.t05.s<e- bien see 24 
Miura vita nie meee tag tgp te ne eee eA eo 5 ds Sica gn a nies 24 
Status of the chinch-bug problem in Kansas, Missouri, and Oklahoma ...._..- 26 
Southern Kansas and northern Oklahoma, 1910....................2..... 29 
LEDS PETIT assests Segara bar er tye ual aes a Ieee Pe MO La ee meters | crs) | 
oD ELRDTIE Se 2a els SSSR ee EP apa ALD gee AS 32 
reveulve measires TECOMMeNDeG .<. 022. c<~ oss ees ee oe ee de cain eee eee ne ce 36 
Destruction of chinch bugs while in hibernation......................... 36 
ETULTIB aS NGS oa Re eS SS Bg eet ee a I Oe oO on A 37 
Set Teg] NET VST Ree Ele TON pli ae a in On ae cr me eae ar 37 
PUREE SDN eivee Sr OS oe aE an ra Bi at ee een ik Ak ee ee ie eee 38 
Desiroyime bues which enter cormfields.-/-..2<-= +. a. 8. -- ~~ =. 0.22 ee: 38 
ntetiietAcbony mene dial MCASUTCS. 0.052. oo. 3-2 obs wa oes ak oes Sat re new = 39 
Pe PeCE GORMGUANECCE Scere ait 2.5 te ames PEE SRN SS. Coe eI me atk ake aoe Se aoe 39 
Piommiucninder iniested. CrOpsac. 5... B2e2s. SSeS Se SL A eh 39 
[PSUR NSM IONTVEM ON. tye Bore SENS Se Bee Cte SRS ee 2 yeaa Seah ns eee te ene ee ee AQ 
BEG SC ENARUAN Seon teres ae eee Ae or Sete See ns hate eee wee ce Ap) 
Obsenvationsibyathenwillersta. sncemscesesas 2 Se et 2 cee ee ca 41 
ield studiesian iKansas.and Oklahoma.-.-. 2-202 22... s 4] 
PAG cteI AN AMPEG DOtIOliee hose on ees ee ge Seat Ae ke tee ole 44 
Omce suds itm Washimetons DCL 23. 22s Ses. Sosa ae 46 
Experiments with dead chimeh bugs:.= 2... 522 22.2. ss2 222: S- A7 
Experiment siwalhuliverchinchvbucsm. ss. 2 ep 22 ae ne ee 48 
(CYopaVGl NUE OTIS SG se a eee es Set en ee noe ga ee ek SR ee a 50 
STM SaaS aSSRSBSA BE AIS e eee Sees eee een a ti eee 50 
