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BETTER FRUIT 



Page 13 



This will assist the proper authority 

 to determine areas of infection and 

 enable him to eradicate the trouble 

 with greater ease. Fire blight can only 

 be controlled by cutting out the injured 

 parts. Tools should be disinfected 

 before and after making each cut in 

 order to avoid the further spreading of 

 the disease by these instruments. Cor- 

 rosive sublimate, which can be obtained 

 at any drug store, should be used at a 

 dilution of 1 part to 1000 parts of water. 



Pear Bark Blister. — During the past 

 year many pear trees were observed 

 possessing more or less well-defined 

 cankers upon the larger limbs and 

 body. The cause of this destruction of 

 tissue has not been determined, but 

 winter freezing is suspected to be the 

 chief cause for the formation of these 

 injured areas. No disease has been 

 isolated from these places. Anthrac- 

 nose has been found in several cases, 

 but infection from this disease is not 

 as a rule prevalent upon the pear. 

 Spraying for the control of this disease 

 upon pears is the same as for apple. 



The writer has examined many can- 

 kers during the past fall, and has 

 found that a great majority of them are 

 rapidly healing over. Those so doing 

 should be left alone until recovery is 

 complete. In the case of large body 

 wounds, where a large amount of 

 heart wood is exposed, the application 

 of a good coating of white lead paint 

 is suggested in order to reduce the pos- 

 sible entrance of heart-rot organisms 

 to a minimum until the bark is com- 

 pletely healed over. This application 

 should be repeated two or three times 

 a year. The use of white lead and raw 

 linseed oil is recommended. 



Pear Scab. — Though a different or- 

 ganism pear scab closely resembles 

 apple scab in appearance and method 

 of attacking the fruit. Its control is 

 much the same as that of apple scab. 

 In orchards which have suffered losses 

 from this disease, the program given 

 for the control of apple scab will be 

 found effective. 



California Peach Blight. — During the 

 past two or three years California 

 peach blight has become very prevalent 

 at Hood River and the surrounding 

 country. This disease, together with 

 peach-icaf curl, is killing many peach 

 trees. The fungus attacks twigs, buds, 

 foliage and fruit. In the case of the 

 old branches and twigs, irregular can- 

 kers are formed, from which a thick 



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Good for potatoes and bad for bugs 



A three-in-one potato spray that kills insects, 

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Like all Shervvan-Williams Dry- 

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Lime-Sulfur 



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FOR CLEAN FRUIT 



If you desire to have your fruit 

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{,'uni exudes. Infections on tlie newer 

 growth are at first red, or reddisli 

 iM'own in color, changing with the de- 

 struction of the tissues to a dark brown 

 color, eventually forming a small black 

 canker. These cankers often com- 

 pletely girdle small twigs, resulting in 

 their death. Infection also very often 

 occurs on the fruit, and if sufTiciently 

 extensive, destroys the marketability of 

 the product. Reddish brown spots 

 occur upon the skin of the fruit from 

 which exude long, semi-transparent 

 threads of gum. The fruit of the apri- 

 cot is often attacked and becomes 



badly deformed, owing to the infection 

 caused by this disease. On trees badly 

 infected large numbers of the fruit and 

 foliage buds are destroyed during the 

 fall and winter. 



Peach blight can be controlled by 

 pruning and proper spraying. In the 

 case of the older trees, a large portion 

 of which is diseased and partly dead, 

 heavy cutting should be resorted to in 

 order to develop new wood and bearing 

 surfaces. In connection with this 

 work, the trees should be sprayed at 

 least three times a season in order com- 

 pletely to protect the new wood from 



WHEN WRITING ADVERTISERS MENTION BETTER FRUIT 



