BLIGHTS OF CONIFEROUS NURSERY STOCK. MAA 
just after it is removed. The roots do not die till some time after 
the tops. The immediate cause of death is unknown. The disease 
may be prevented by avoiding heavy, close mulches. Spraying with 
soap-Bordeaux mixture just before the beds are mulched in the fall 
may also be of value. 
(4) Needle diseases—There are a number of needle-destroying 
fungi, some of which are certain sooner or later to cause damage in 
the nurseries in the more moist parts of the United States. They 
have so far done little damage in our nurseries and have been little 
studied. Spraying with Bordeaux mixture at the proper time will 
presumably prevent damage from any of them. The proper times for 
spraying are not yet known. The importation of European stock 
should be discouraged, in order to avoid bringing in parasites which 
have not yet reached this country. 
(5) Red-cedar blight—A great deal of blight occurs in red-cedar 
seedlings and transplants. The cause and methods of prevention 
are unknown. Shading, watering, and frequent spraying should be 
tested. 
© 
WASHINGTON : GOVERNMENT PRINTING OFFICE : 1913 
