MICHIGAN ACADEMY OF SCIENCE. 
53 
Although this fungus is a vigorous one, and is capable of wintering over 
in the conidial stage, yet there is not the slightest doubt that considerable 
success would attend an active campaign against the winter stage. The 
orchard should be plowed in the fall, and what the plow does not reach, 
should be dug under by hand, thus getting all the old fruits underground 
where the fungus does not survive. But the question of cover crops arises, 
and to this it can be said that for the fungus the cover crops are very favor- 
able. In fact this can be said in regard to several other injurious fungi. 
Plow them in if you wish to destroy them. 
Agricultural College, April 3, 190S. 
