WORK ON THE W'HITE VINK I’.USTER Rl S'l' IN MINNIESOTA 
17 
7. In addition to nursery work, there shonld l)e a state wide sur- 
vey of IMinnesota to learn whether this disease occurs in sections other 
than those examined this year. 
8. Any work towards eradication in Minnesota is futile unless 
isconsin, in which state the disease is known to exist, co-operates by 
continuous and efficient efforts at eradication within her own boun- 
daries. This statement is also applical)le to any other adjacent state in 
which the disease occurs. 
9. Purchasers of stock from nurseries should realize that an 
Inspector's certificate is not a guarantee that pines in that nursery are 
free from White Pine Blister Rust, since as previously explained the 
disease may be present in the tissues of trees and not be apparent 
upon the surface. 
10. The relation of N uvserymen to the Federal Hortieidtiiral 
Board in eonneetion with this disease. 
The Federal Horticultural Board in a commendable eff'ort to save 
the five-leaf pines in the large area west of the Continental Divide have 
asked (not reciuired, be it noted) nurserymen in Minnesota with those 
of many other states, not to ship ])ines, currants or gooseberries 
west of the Dakotas, and broadly speaking west of a line drawn south 
from those states. As State Inspector and collaborator with the h'ed- 
eral Board, the writer urges nurserymen to heed the suggestion coming 
from Washington, but expresses the hope that this request on the part 
of the Board may be modified. While the Board has prevented the 
introduction of five-leaf pines from Europe, it has placed no quarantine 
upon pines being shipped from the five or more states in the east known 
to be infested. Further, there is no restriction at present upon the 
entrance of currants and gooseberries into the United States from 
Euro])e. This unrestricted entrance of currants and gooseberries is 
probably permitted because so far practically all of the evidence as to 
spores being carried over on dormant bushes is negative. .Such being 
the case and with the above facts before us, it would appear that dor- 
mant currants and gooseberries might be shipped with safety into the 
states, or portions of states lying east of the Divide, Eastern Mon- 
tana, for example. 
Personally, we should like to see all foreign importations of nur- 
sery and ornamental stock into the United States prohibited for a num- 
ber of years. The White Pine Blister Rust was introduced and dis- 
tributed before our citizens were aware of its presence. Other diseases 
as bad or worse might be brought in at any time, to develop later and 
cause thousands of dollars worth of damage. In this connection we 
quote from a letter received from J. G. Sanders, formerlv State 
