68 JOURNAL OF ECONOMIC ENTOMOLOGY • [Vol. 7 



verj' favorable for the females to oviposit, and the dry, mild winter 

 which followed enabled fully 90 per cent of the eggs to pass the winter 

 uninjured. In the spring the investigations of the field agents of the 

 Department of Entomology of the Kansas State Agricultural College 

 and Experiment Station and the district farm demonstration agents,^ 

 together with a large number of reports from various parts of the 

 state, showed that enormous numbers of the hoppers were hatching 

 out and that it was very probable that the farmers of western Kansas 

 would experience the most serious outbreak of grasshoppers known in 

 that part of the state, unless prompt and vigorous efforts were made 

 to put in operation methods effective in destroying them. 



Three years ago the Department of Entomology realizing that not 

 only were the grasshoppers increasing in alarming numbers, but also 

 that they would be doing enormous damage to the crops, stationed 

 Mr. Francis B. Milliken,- assistant entomologist, in the field to study 

 the situation and develop effective methods for the control of the hop- 

 pers and demonstrate to the farmers that they could protect their 

 crops. In this work it was found that poisoned bran mash, the hopper 

 dozer, and poultry and young hogs were very efficient measures for 

 the control of the grasshoppers. 



Several of the recommended formula? for the preparation of the 

 poisoned bran mash were used, but after thoroughly testing several of 

 the various ones, Mr. Milliken recommended the following formula 

 as containing the quantities of the various ingredients that proved 

 most efficient and could be most conveniently handled : 



Formula : 



Bran 20 lbs. 



Paris green 1 lb. 



Syi-up 2 qts. 



Oranges or lemons 3 fruits 



Water 3^ gals. 



Preparation and distribution: 



Mix the bran and Paris green thoroughly in a wash tub while dry. 

 Squeeze the juice of the oranges or lemons into the water, and chop 

 the remaining pulp and the peel to fine bits and add them to the water. 

 Dissolve the syrup in the water and wet the bran and poison with the 

 mixture, stirring at the same time so as to dampen the mash thor- 

 oughly. 



1 The district farm demonstration agents are state and government men. They 

 are farm advisers and work under the direction of the Kansas State Agricultural 

 College. 



2 Mr. Francis B. Milliken was assistant entomologist of the Kansas Experiment 

 Station for the two years previous to September 1,, 1912, and is now with the Bureau 

 of Entomology, United States Department of Agricidture. 



