226 REPORT OF OFFICE OF EXPERIMENT STATIONS. 



In entoinolog}', special attention was given to truck-crop insects, 

 particularly the onion thrips, and work was also in progress on the 

 cranberry worm, which has been quite destiiictive. The hatching 

 record and early life history were worked out. A new nursery-stock 

 law went into effect last year, and this department had charge of the 

 inspection. A small insectary was built during the spring. 



In plant pathology, studies on the life history of Phytophthcra 

 infestans were continued, and work along a number cf important 

 lines was inaugurated. These included studies of the relatitm of 

 fungicides to spore germination, a Fusarium disease of cabbage, and 

 a number of other plant diseases. 



The department of farm engineering studied the effect of silage on 

 concrete with a view to protecting the concrete walls against injury 

 from this source. The station cooperated with farmers in the State 

 by loaning them forms for the construction of concrete silos. About 

 25 were built during the past season. 



The dairy department, among other work, gave attention to the 

 elimination of mottles in butter, tested a homogenizing device for 

 the treatment of cream, and gave attention to the improvement in 

 quality of the milk supply by the application of the score-card system 

 on 200 farms supplying milk to the university. The new method of 

 utilizing buttermilk for making a soft-cheese product, devised by 

 the department, has been in commercial use over a year, with satis- 

 factory results. 



The demonstration work, farmers' cooperative projects, general 

 extension instruction, and the inspection and control work include 

 many different lines of activity. Demonstrations were carried on on 

 State and county farms, at the northern substations, on farms in the 

 use of fertilizers and the conservation of manure, hog-cholera vaccine 

 work, potato spraying, cooperative silo building, testing dairy cows, 

 scoring butter and cheese, and milk and cream testing. The inspec- 

 tion and control work included stallion registration, feeding stuff 

 and fertilizer control, and nursery and seed inspection. 



The publications received from this station during the year were 

 as follows: Bulletins 196, Opportunities for Profitable Farming in 

 Northern Wisconsin; 197, Methods of Paying for Milk at Cheese 

 Factories; 198, Methods of Renting Farm Lands in Wisconsin; 199, 

 The Principles and Practice of Land Drainage; 200, The Selection 

 of Feeds for Dairy Cows; 201, Planting the Commercial Orchard; 

 202, The Management of Heavy Clay Soils; 203, Report of the Di- 

 rector, 1910; 204, The Improvement of Sandy Soils; 205, The De- 

 velopment of Marsh Soils ; 206, Tobacco Culture in Wisconsin ; 207, 

 The Management of a Bearing Orchard; 208, Crop Demonstrations 

 on State and County Farms ; 209, The Prices of Farm Products ; 211, 



