EXPERIMENT STATION REPORTS. 



285 



have been more efficient in controlling this insect and in most cases, 

 very good results have been reported by including the contact spray for 

 aphids in the scale preparation. Later applications for this insect 

 have not been so successful and only in a few cases, necesary. It is 

 quite possible that aphis parasites have increased in sufficient numbers 

 to render their aid in its control. 



Our equipment needs many additions without which best results can- 

 not be secured. The buildings are badly in need of repair; a small 

 laboratory and greenliouse would be valuable additions and Avould in- 

 crease our field of experimental work. 



Respectfully submitted, 



I. R. NOTEWARE, 



Superintendent. 

 South Haven, June 30, 191G. 



REPORT OF DIVISION OF FARM CROPS. 



Director R. S. Shaw: 



Dear Sir — I have the honor to submit the following report for the 

 Division of Farm Crops for the year ending June 30, 1916: 



The testing of varieties of corn has been continued as heretofore, and 

 data accumulated from this experiment and the cooperative corn tests 

 about the State are of value in determining the choice and adaptation 

 of different varieties to different sections of the State. It is planned 

 to publish the results of this experiment before another planting sea- 

 son. In addition to the value of this work as an Experiment Station 

 project, it has been of much value as a means of furnishing material 

 for our students in the study of types, adaptation, variation, maturity, 

 etc., of corn. 



The rotation, fertilizer and manure experiments have now been in 

 progress for five years, the more important data secured being given in 

 the following tables: 



TABLE I. — Results of Application of Fertilizer to Wheat in Corn, Wheal, Clover Rotation, 1911-15 



