

BLACK SPOT AND Mr 



MILDEW ON ROSES 



«fe 



A slogan of modern reformers is, "Back to nature!" In the artificial 

 conditions of the greenhouse, as well as in civilized social life, only a partial 

 return to nature is advisable or possible,' hut nature's laws should he un- 

 derstood and utilized, not antagonized unnecessarily. 



OF THESE two 

 objects, the con- 

 servation of health 

 and the promotion 

 of longevity, is of 

 vast interest to the 

 human family, and 

 each is receiving the 

 intense study of 

 scientific minds. 

 Writers in the mag- 

 azines and daily 

 papers are uttering 

 admonition after admonition, the sub- 

 stance of which is invariably: "Get 

 back to nature. Seek out and study 

 the laws that nature has laid down for 

 the governing of life, and diligently 

 apply them to your daily mode of 

 living. ' ' 



The Laws of Health. 



While as yet the fruits of the labors 

 of those disciples of clean living are 

 not commensurate with the intensity of 

 their toil, still there is hope that the 

 time is coming when the application of 

 their theories will reduce mortality to 

 a minimum of unavoidable cases, and 

 this old world will be 

 infinitely benefited 

 by the metamorphosis 

 of a race of indiffer- 

 ent units into a race 

 of virile, clean-mind- 

 ed, deep-thinking, 

 healthful subjects of 

 nature. 



Elimination of dis- 

 ease and promotion 

 and conservation of 

 health are the prime 

 fundamentals of or- 

 ganic life, whether 

 animal or vegetable, 

 and nature, the 

 mother of us all, has 

 provided laws gov- 

 erning existence, the 

 faithful observance 

 of which assists us 

 greatly i n our at- 

 tempts to reach the 

 pinnacle of all hap- 

 p i n e s 8 , abundant 

 health. 



The great law of 

 cause and effect must 

 be. consulted in the 

 investigation of dis- 

 ease. Disease is the 

 effect of a cause, or 

 a series of causes, 

 which throws out of 

 gear ithe balance 



By CHARLES N. COTTER, 



of Lake View Rose Oardens, James own, N. Y. 



wheel of life, and before that wheel 

 can be rightly readjusted the cause 

 must be discovered and eliminated, and 

 precaution must be taken to prevent 

 its recurrence. 



Penalties for Breaking Laws. 



Disease is the penalty nature inflicts 

 upon transgressors of her laws. In the 

 beginning of human economics, laws 

 were laid down to govern the conduct 

 of those who composed humanity at 

 that time, and the laws carried with 

 them commensurate penalties for their 

 violation. So, also, at the beginning of 

 all things, laws were laid down by the 

 Creator of nature, laws conducive to 

 healthful evolution, and penalties were 

 provided for their violation. In the 

 case of human economics, death, im- 

 prisonment, banishment and fines con- 

 stituted the penalties. In the sphere 

 of vegetal economics, disease, blight, 

 rot and death were the punishments 

 prescribed. 



Modern physicians, through their 

 study of the laws of cause and effect, 



Black Spot and Its Effect on the Young Growth of Mrs. Rossell Rose. 



have elevated their profession to a 

 plane of scientific knowledge that recog- 

 nizes nothing as unconquerable in the 

 vast catalogue of human ills. Equally 

 proficient in their line of endeavor are 

 the cultivators of plants, and at the 

 present time it may safely be said that, 

 whenever external conditions may be 

 controlled, the trained plant culturist 

 need fear no disease to which the plant 

 is susceptible. 



Control of external conditions natu- 

 rally presupposes an area covered by 

 glass, and as the most important of 

 all the plants cultivated in glass struc- 

 tures is the rose, the remainder of this 

 article will be confined to a discussion 

 of the causes that have as their effect 

 two of the most devastating diseases 

 the rose plant is heir to; namely, black 

 spot and mildew. 



Lines of Communication. 



The rose plant is an aggregation of 

 various-sized celjs, discharging indi- 

 vidual functions,' but interdependent 

 on one another and all working toward 

 the common goal, increased growth. 

 From the end of the deepest submerged 

 root to the tip of the 

 highest leaf there is 

 maintained continu- 

 ously an unbroken 

 line of communica- 

 tion. 



The ability of 

 plants to establish 

 and maintain this line 

 of communication i* 

 the most vital feature 

 in vegetable anatomy. 

 The process may be 

 likened to the opera- 

 tion of a great trunk 

 railroad, connecting 

 the source of supply 

 of raw materials, the 

 manufacturing c e n - 

 ters and the points of 

 distribution. The 

 roots, situated in a 

 repository of nutrient 

 food salts, may be 

 termed the source of 

 supply. The leaves,, 

 with their ability to 

 work up, under the 

 power of the sun, the 

 raw food salts and 

 combine with them 

 other ingredients, 

 gaseous and liquid, 

 to make organized 

 building compounds, 

 mav be termed naa«- 



