EXPERIMENT STATION REPORTS. 177 



KEPOKT OF THE ENTOMOLOGIST. 



Director E. S. SliaA\^ 



Dear Sir — Following is a brief report of the work of the Division of 

 Entomology for the year ending June 30, 1913. 



The cold, wet spring of last year led to the development of a serious 

 aithid outbreak, Avhich had its effect on the apple crop especially. The 

 spring just past has repeated the conditions of a year ago, only in 

 lesser degree, and the present sunnner finds lots of plant-lice in the 

 orchards. It is very exceptional indeed to have two a])]iid years in 

 succession. In the northern ]»art of tlie slate the weather turned hot 

 wiien sunnner finally came and the grass]i(ti»iters have in consequence 

 been unusually abundant. 



As in the i)ast, new pests are continually coining in, and these often 

 require rearing to nud;e sure iheir identity. The correspondence grows 

 yearly, and as a conseipience more effort is expended to take care of 

 incpiiries. 



During the year, a revised edition of the Spray and Practice Outline 

 was prepared by Professor Eustace and the writer, and published as 

 special bulletin No. Gl. 



Dr. G. D. Shafer is still w^orking on his problem concerning how 

 contact insecticides kill insects, with gratifying results. His experi- 

 ments are gradually focussing on some principles of basic interest. 



It is hoped that during the next year, we shall be able to take up 

 more of the Avork of insect control, such as is brought about by spray- 

 ing, etc., due to tlie ])romise of ])art of t-he time of a new man for this 

 \\ ork. 



The writer is using such time as can be secured at present to apply on 

 a bulletin on the ])rincipal forest and shade tree insects of Michigan. 



Respectfullv submitted, 



K. H. PETTIT, 



Entomologist. 



East Lansing, Mich., June 30, 1913. 



'&• 



lUOPOKT OF THE ITORTICULTUKIST. 



Director R. S. Shaw. 



Sir — I herewith submit a report on the work in horticulture for the 

 vear ending June 30th. 1913: 



Bulletins or circulars from this department have been issued on 

 ''Cover Crops for Michigan Orchards and Vineyards," "Celery Grow- 

 ing," ''Small Gruit Culture," "Cucumbers as a Cash Crop," "Starting 

 a Lawn" and "Spray and Practice Outline for Fruit Growers." That 

 the information contained in these publications has been of value can 

 best be judged by the demand for them. The circular on "Cover Crops 

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