46 Report of State Board of Horticulture. 



for it with bordeaux after it has thrown off its spores and before 

 they begin to grow. 



The apple anthracnose, or canker, matures and throws off 

 its spores during the spring and early summer months. These 

 spores lodge in favorable places on live tissue and remain 

 dormant until cool, damp weather in the fall or winter when 

 they begin to grow, destroying with their growth healthy, 

 sound tissue wherever they may have lodged. Cutting out 

 with a knife is of but little benefit and not practical, if it was 

 a specific, owing to the expense. Hence, the only practical 

 remedy is to spray the whole tree with bordeaux, and this 

 spraying, to be effective, must be done as early in the fall as 

 possible, or just as soon as the apples are gathered. It is not 

 material whether the foliage is on the trees or not ; when the 

 apples are gathered spray with bordeaux of double strength. 

 What old .leaves that are destroyed at that season of the year 

 by the spray will do no damage. 



Eisman Bros., who have an apple orchard of 20 acres six 

 miles west of Grants Pass, found it badly diseased with anthrac- 

 nose. In fact, the fungus would in a short time have destroyed 

 the orchard had not the brothers taken hold of the matter 

 determinedly. They bought a gasoline engine and pump and 

 began systematic spraying vrith bordeaux as early in the fall 

 as the apples were gathered. Eisman Bros, are intelligent, 

 energetic young men, and determined if it could be done to 

 save their fine orchard from the fungus. That they have been 

 rewarded with success is evidenced by the present health and 

 luxuriant growth of the orchard. The old dead spots are 

 rapidly healing over ; no new growth has appeared, and this 

 year the orchard will yield about 8,000 boxes of apples. This 

 fall Eisman Bros, will spray again with bordeaux, as they 

 now know that fall spraying Avill destroy the disease and keep 

 their orchard healthy and free of the fungus. 



William Hellwell of Yoncolla, Douglas County, has a fine 

 10-acre apple orchard that the anthracnose became well estab- 

 lished in. He was very successful in treating the disease by 

 spraying with bordeaux early last fall. Other orchards in 

 that vicinity diseased w^ith the fungus were nearly dead in 

 June of this year when I visited that locality. In unsprayed 

 diseased orchards at that season of the year the foliage of the 

 apple was as brown as it would be in October, without fruit, 

 while in Mr. Hellwell 's orchard the foliage was a deep, luxuri- 

 ant green, with a heavy crop of tlirifty apples growing, Avhicli 

 will be choice for the market this fall. 



