162 Kansas State Board of Agriculture. 



Wallace county: "Use prairie-dog poison on wheat in early spring 

 before the grass starts. Use bisulphide of carbon any time. Take large 

 corn cobs, cut in lengths equal to their diameters, pour about a table- 

 spoonful of the liquid on a couple of the pieces of cpb and put them in 

 the hole. Cover the hole with a spadeful of dirt and tamp solid." 



(See page 365.) 



WINTERKILLING. 



It is universally reported that young alfalfa is much more susceptible 

 to winterkilling than old alfalfa. The kind of weather that most often 

 winterkills alfalfa in the western half of the state is a dry, cold atmos- 

 phere accompanied by driving winds, especially where there is a loose 

 topsoil. In the eastern half of the state winterkilling of alfalfa is 

 usually caused either by heavy sleet or ice remaining over the field for a 

 considerable period of time or by very wet soil with hard and sudden 

 alternate freezing and thawing, which causes the ground to heave and 

 the roots to break, sometimes lifting the alfalfa plants far out of the 

 ground. The following are representative reports covering the different 

 phases of the subject: 



Rawlins county: "Alfalfa sowed too late in the fall, and a hard 

 winter." 



Brown county: "I never had any killed after one year old." 

 Cowley county: "1 never had any to winterkill after it got a start." 



Finney county: "I never lost any alfalfa over one year old by winter- 

 killing." 



Geary county: "Freezing and thawing when not well rooted." 



Russell county: "I have never had any winterkilled when it got a good 

 :start in the fall." 



Leavenworth county : "Thawing and freezing on newly-sown fields." 



Allen county: "Thawing and freezing for young alfalfa; never had 

 old alfalfa to winterkill." 



Cheyenne county: "Young alfalfa in dry and cold winters." 

 Coffey county: "Freezing and thawing will kill young alfalfa." 



Lane county: "I have never known a spring sowing to winterkill here. 

 Dry, hard, freezing weather will kill a fall sowing." 



Ellsworth county: "A dry fall and a dry, cold winter." 



Hodgeman county: "Extremely dry fall, loose dry surface, and ex- 

 tremely cold weather." 



Phillips county: "Cold, bare winter." 



Seward county: "Mine was killed by having the ground get dry and 

 loose on top, and then blowing out in the winter." 



Sherman county: "Close pasturing and an open, dry winter with 

 heavy winds." 



Stafford county: "When the ground is dry and bare, with hard freez- 

 ing." 



Woodson county: "A very severe dry freeze in the beginning of the 

 winter will kill alfalfa mowed late and immature." 



