38 Report of State Board of Horticulture. 



deaux kills the fertility of the spore of anthracnose, and re- 

 moves the cause of the disease. Anthracnose grows into the 

 bark of the tree, destroys the tissue, and a dead spot is the 

 result. Anthracnose is always dry, it never exudes sap on 

 the part of the tree it has its growth. In all hold-over cases 

 of pear-blight it ferments the sap, and causes it to exude and 

 drip when the saD flow is active in the spring. To identify 

 pear-blight cut into the affected part of the tree where it is 

 working, and you will find a brownish discoloration of the 

 inner bark next to the hard wood. In many cases of pear- 

 blight you will find it running down one side of a large limb, 

 or the trunk of the tree, and where the germs are at work 

 can be readily detected by this brownish discoloration next 

 to the wood. Where a large limb or the trunk is affected, 

 follow down with the knife, and cut out all that part of the 

 side of.the tree that shows unhealthy tissue, and you can save 

 the tree. Frequently we find large limbs, in bad cases of long 

 infection where the brownish discoloration girdles the limb. 

 In such cases the limbshould all be cut out below where infec- 

 tion shows. Where the entire trunk of the tree is infected 

 with the germs, then cut down the tree, and burn it. I feel 

 sure the apple and pear growers of Oregon should be awake 

 to the dangerous character of the pear-blight, or eise when it 

 becomes bad in a district it becomes costly to control it, if it 

 does not destroy the orchards. 



A. H. Carson, 

 Commissioner for Third District. 



FINAL BEPORT, 1910. 



To the Honorable State Board of Horticulture: 



I herewith respectfully submit my biennial report for the 

 Third Horticultural District, embracing Coos, Curry, Douglas, 

 Josephine, Jackson, Klamath and Lake counties. This report 

 Covers, to an extent, the development of new orchards planted 

 for commercial purposes during the two years, 1909-10. 



The past two years the planting of new orchards in the 

 third district has been greater than ever in the history of 

 the fruit industry. This activity of the land holders in plant- 

 ing new orchards to the aüple and pear is being stimulated by 

 the high prices apples and pears from the Rogue and Umpqua 

 Valleys seil for in eastern markets, and the seemingly unlim- 

 ited demand for the fruit of these Valleys. I believe I am 

 warranted in saying that nearly all the progress made the 

 past six years, in better homes and the easy financial condition 



