REPORT OF STATE BOARD OF PIORTICULTURE . 37 



done little good. I see no remedy for that, under our present 

 system, but to wait until a reasonable time proves that no 

 good has been accomplished, then require them to do it over 

 again. 



In localities where fruitgrowing is a prominent industry 

 public sentiment is strongly in favor of tliorough pruning 

 and spraying, of clean trees and clean fruit. But in many 

 other places it is almost impossible to secure effective work. 



In my last report I stated that San Jose scale had been 

 found in an orchard at Newberg ; this has been stamped out 

 by removing the infested trees and thoroughly spraying the 

 remainder of the orchard. I also found scale in an orchard 

 at Hillsboro ; here the same plan was adopted. 



For some months past I have been noticing the large 

 number of prune trees that have died without any apparent 

 satisfactory reason therefor. The cause has generally been 

 attributed to sour sap caused by the severe freezing in winter. 

 But this seems to me hardly adequate ; I fear there is some 

 disease among our trees. Of course a great number of trees 

 have died from freezing, but many otliers are lost apparently 

 from other and unknown causes. One of the well-known and 

 best-informed orchardists of Oregon advances the idea that 

 the cause is a disease somewhat similar to the dreaded peach- 

 yellow — a disease of the circulation or sap. I am inclined to 

 agree with this, and think it should be investigated by some 

 competent scientist. The remedy would be to at once remove 

 and burn all dying trees the same as is done with peach- 

 yellow. Pending investigation, tlie remedy should be applied 

 anyway to prevent needless risk. 



The prospect is now most excellent for an enormous crop 

 of fruit of all kinds. Should there be a full apple crop all 

 over the United States a wormy apple will be unsalable at 

 any price. Therefore, apple-growers should plan to wage 

 vigorous warfare against the codling moth. There is great 

 diversity of opinion as to where the first spray should be 

 applied ; some authorities saying that the early spray, just 

 after blossoms fall, is the only one of much use ; others that 

 the later sprayings are the effective ones. I think it safer to 

 compromise and do both. While the moth seldom appears 

 before June 20 in the Willamette Valley, I think the first 

 spraying should be done much earlier, as by that time the 

 calyx end of the apple is closed so that no spray can enter. 

 Applied earlier it can not wash out and is there awaiting the 



