February, '14] HUNTER: KANSAS GRASSHOPPER CONTROL 75 



commission for 1907 and 1908. Since that time all the University's 

 entomological work along economic lines has been confined to the 

 part of the state assigned to the state entomologist of the University 

 of Kansas by the entomological commission. 



Therefore, from the numerous requests received this season from 

 counties in the University's district, it was evident that vigorous 

 measures were being called for. Accordingly, the authors formulated 

 a campaigTL in conjunction with the county commissioners with the 

 cooperation of the following members of the department force: Assist- 

 ant Professor Hungerford, Assistant W. T. Emerj^, Field Assistant 

 A. E. Mallory, Assistant Dwight Isely, and Professor W. B. Wilson, 

 head department of biology, Ottawa University, an appointee of the 

 commission for this work. All these men are university graduates 

 of several years standing and with two or more years' experience in 

 entomological field work. 



The organization of the counties in the University's territory was 

 accomplished by holding a mass meeting called by the county com- 

 missioners at which one or more of the University's entomologists were 

 present to give details of the organization and direct the work. 



At this meeting a certain day was designated as Grasshopper Day 

 when every man in the county was enlisted in the fight. The township 

 trustees of each township were instructed to issue to each farmer a 

 certain amount of the poison and the University entomologists were 

 there to direct its application and record results. Practically every 

 farmer in these counties availed himself of the opportunity to destroy 

 the grasshoppers on his place in this way. 



The formula used is given below. Since the formula used by 

 Professor Dean of the State Agricultural College, with whom we 

 worked in two counties, differed from ours as first published in the 

 use of oranges instead of lemons and an additional amount of syrup, 

 we, at his suggestion, to avoid confusion among the farmers, added 

 the oranges to make the formulas uniform. Our experiments, how- 

 ever, show that the use of lemons is 40 per cent more effective than 

 the use of oranges. In fact we have found that vinegar has proven 

 as effective as oranges. The use of oranges shows no appreciable 

 difference in the attractiveness of the bait, as compared with plain 

 bran mash. 



The commissioners of the various counties concerned entered heartily 

 in this work and not only furnished the poison but furnished circulars, 

 samples of which may be obtained by interested parties on application 

 to the author. 



In addition to this the University distributed 5,000 circulars of 

 instructions over its territory. 



