Sizth Annual Report. hae) 
special pains to distribute Sporotrichum. At this time the fields 
were very moist, and Sporotrichum was found in all of the 
ber of bugs. Where the bugs were moulting, the Sporotrichum 
was more abundant. 
June 25. Arkansas City. In company with Mr. H. N. Hess, 
-Lyisited farmers some of whom had used the barrier. The 
first farm visited was where the bugs had been very thick in 
the wheat and were about to leave it and enter the corn. The 
farmer plowed a high double furrow and rolled it down; then 
he applied the tar on top of the ridge where the roller had 
made it flat. In this way he had fenced in 160 rods of corn, 
using twenty-five gallons of tar. He had continued the ex- 
. periment five days and the bugs had been kept out of his corn 
and had traveled to an adjoining farm. His corn sustained 
no material damage. Sporotrichum was found in-wheat stub- 
ble and in moist places where the bugs had crossed into 
_ other fields. No artificial means had been used to infect them. 
We visited five other fields where the barrier method had been 
used, but not so successfully as in the case just described, be- 
- eause the post-holes were not dug and insufficient tar was used, 
but benefits were received in proportion to the care given. 
Most of the farmers had not used tar enough, thinking that one 
application would be enough. Fifteen fields were visited where 
_ chinch-bugs were present. Sporotrichum had been artificially 
distributed in four of these. Sporotrichwm was found in all 
_ fields, and no difference could be seen in the conditions of the 
- erops and number of dead bugs where Sporotrichum had been 
used and where it had not. 
June 26. Perry, Oklahoma. Copious rains had visited this 
section at the same time as in Sumner county. The soil is a 
reddish clay, and, being a newly settled country, this year’s crop 
_ is the first that has been raised here. Bugs were very plentiful. 
_ Sporotrichum was found in all places where there were bugs. 
The bugs were more matured than in Sumner county, because 
of the earlier spring here. 
June 27. Winfield, Cowley county, Kansas. Visited three 
¥ 
twenty fields, the amount of disease depending upon the num- 
