April, ’18] 
PARKS: EXTENSION ENTOMOLOGY 
161 
furnishes to the farmers convincing proof of the value of applying the 
best measures of control. Besides this it instills in the worker a desire 
to add to information which keeps him in closer touch with his science. 
In the past our project work has been divided about equally between 
educational and demonstrational work. In most localities the need of 
the former is recognized before the latter can be most advantageously 
staged, and serves to make the work continuous throughout the year. 
The accompanying outline shows the relation of extension entomology 
in Kansas to the organization which is behind it, the methods used to 
reach the farmers and the ultimate result to be obtained. 
Organization 
State 
Agricultural 
College 
Div. of I Dept, of 
Agri. \ Ent. 
U. S. Dept, 
of 
Agriculture 
States f Cooperative 
Relation j Extension 
Service ( Work 
Method 
Farm Visits 
Result 
Traveling 
exhibits 
More 
Education 
Lantern 
slide 
lectures 
Food 
Extension 
The Press 
. Better 
Entomology 
Spraying 
Food 
Poison- 
bait 
Demonstration • 
Trapping 
Cheaper 
Food 
Burning 
Tillage 
The educational work represents the most that can be done with such 
insects as the Hessian fly, green bug and subterranean species with 
perennial habits. This branch of the work is by no means the least in 
importance, however, and when one can persuade a farmer by means 
of a personal visit to destroy volunteer wheat in his seed bed and wait 
until the fly-free date to sow his wheat in regions where Hessian fly is 
abundant, he is performing a real service and the farm visit is the surest 
way to bring this about. It is very important to plan these visits to 
be timely in order to secure the best results. The best time to make 
these farm visits, or auto tours, to observe the effect of volunteer wheat 
in the seed bed and the good of observing the fly-free date in sowing, is 
during March and April before the spring brood of Hessian flies has 
complicated the results. A visit at this time to wheat fields in one 
community in company with a group of farmers does more to convert 
them to using better methods against the Hessian fly than a front page 
story on the agricultural weekly. Farmers’ institutes afford a good 
opportunity by which to present the educational work. In Kansas we 
have been using lantern slide lectures at these institutes and movable 
schools to acquaint the farmers with insect habits and the methods of 
control. We hope to replace these with moving pictures of insect con¬ 
trol work, and the writer believes that moving pictures will in the 
