ipi6 



BETTER FRUIT 



Page 35 



I't'itions will develop into typic;il scab 

 spots on the young leaves and flower 

 parts and in a week or two there will 

 l)e a new crop of spores produced in 

 these spots which, as you are aware, 

 usually result in an exceedingly rapid 

 spread of the disease in the orchard, 

 attacking fruit and foliage alike. 



There is now no longer any doubt 

 regarding the natural conditions which 

 make possible the spread of the disease. 

 Moisture is absolutely necessary for the 

 germination of the spores and those 

 climatic conditions which enable the 

 dew, rain or fog to remain upon the 

 leaves or fruit foi' a considerable num- 

 ber of hours in succession, make it 

 I)ossible, where spores are present, for 

 those spores to sprout and send their 

 delicate germ tubes through the cuticle, 

 after which the infections will take 

 care of themselves. Anything that pro- 

 motes rapid drying of foliage tends to 

 Ijrevent infection. Wind and sunshin(>, 

 even though interspersed with showers, 

 are unfavorable to the disease, while 

 cloudy or misty weather with little 

 wind, even though there be practically 

 no rain, makes possible abundant spore 

 germination. 



Years ago, before the nature of this 

 disease was yet fully understood, an 

 effort was made to find some means by 

 which it might be prevented. Bor- 

 deaux mixture had been found of such 

 value in connection with certain other 

 plant diseases that it was naturally one 

 of the first materials tried out as a 

 spray for the control of this malady. 

 As long as twentv or twentv-fivc years 

 ago in the eastern i)art of this country 

 bordeaux was shown to be decidcdlv 

 beneficial, and the large number of 

 tests carried out since that time all 

 over the I'nitcd States leave no doubt 

 as to its ellicacy for scab control in the 

 nund of any one familiar with the 

 results. There was, however, one 

 drawback in connection with bordeaux 

 mixture wherever used, namely, the 

 tendency under certain conditions to 

 cause russeting of the apple fruit. It 

 was thought at first that the mixture 

 was being used too strong, but experi- 

 ments demonstrated the fact that injury 

 would occur when weak dilutions were 

 used, and it was found that this couM 

 not be prevented by any change in the 

 proportions of the ingredients. It was 

 found that this injurious effect was 

 l)resent only on fruit sprayed when 

 young, and it is now further undci- 

 stood that moist weather following the 

 application of bordeaux mixture pro- 

 vides the most favorable conditions for 

 the appearance of russeting. 



With the introduction of lime-sul- 

 phur as a fungicide, experiments were 

 l)egun throughout the country to test 

 its usefulness as compared with bor- 

 beaux mixture for the prevention of 

 apple scab. It was a great satisfaction 

 to find that this new sjirav material 

 was really effective for this ])urposc 

 and that it did not produce on the fruit 

 Ihe objectional russeting caused by 

 the other. Lime-sulphur has conse- 

 cpiently superseded bordeaux through- 

 out most of the apple-growing sections 



GRAND 

 IPRIZF 



The Grand Prize, 

 the highest award, 

 bestowed upon Ghirardelli's 

 Ground Chocolate by the 

 Panama-Pacific Exposition, 

 San Francisco 1915, is an 

 additional testimonial to its un- 

 questioned supremacy. The expert 

 judges in this international competi- 

 tion found in 



GWaraeQis 



GrouudQiocolaie 



the very qualities that have made it a house- 

 hold favorite on the Pacific Coast since it 

 was originated by D. Ghirardelli in the 

 early seventies. Not to know — and what 

 is more, not to use — Ghirardelli's Ground 

 Chocolate, is to be unmindful of health, 

 economyand the appeal of a vvholesome 

 appetite. 



D. GHIRARDELLI CO. 



Since 1852 San Francisco 





^smM;! 



CHERRY TREES FOR SALE 



We offer extra fine trees with big roots and heavy bodies at bed-rock prices. 



Write today for samples of grades and prices. The}' are going fast. 



Other first-class nursery stock for sale at low prices. 



BENEDICT NURSERY CO., 185 E. 87th Street N., Portland, Oregon 



Oregon Nursery Company 



ORENCO, OREGON 



Extensive growers of all lines of Fruit, Nut and Shade Trees, Everg^reens, 

 Flowering: Shrubs, Vines, Roses, etc. Introducers of the VROOMAN 

 FRANQUETTE walnut, recog:nized as the best walnut. Our larg^e 

 complete stock consists of varieties suitable for every kind of climate. 

 Write us about your wants before buying:. 



WHEN WRITINT, ADVERTISERS MENTION BETTER FK 



