DISEASES OF CARNATIONS. 109 



but the true pathology ot cohering petals is an excess of stimu- 

 lating nutrients given the plants. 



PURPLE JOINTS ^Rosette.) 



It is distinguished by a purple rosette, or coloring around the 

 joints. Neither the pathology or remedies for this trouble are 

 well understood. It is thought to be caused by overhead water- 

 ing, and the retention of water at the axil of the leaf, and de- 

 rainging local nutrient forces of the plant, if this is the case, the 

 remedy suggests itself. Fortunately the disease is very rare in 

 this country. 



I have described all the diseases carnations are subject to in 

 America, in a brief and simple way, so any one with a $1.50 

 pocket microscope can determine for himself the nature of the 

 trouble with his plants. I have given the most reliable remedies, 

 and the most effective insecticide, germicide and fungicide formu- 

 las known to the carnation growing profession. 



There are other incidental or trancient pests which assail the 

 carnation crop, such as Ants ( Termites flavips) , Rose leaf Tyer 

 (Cacoecia rosaceajia) , Cabbage lyOoper {Phisia brassicae) , Varie- 

 gated cut worm {Peridroma sa^icia). The Ants rendezvous in 

 decaying wood about the house; especialy favorable encampments 

 are worm-eaten locust posts. 



But these assailants are causal or fortuitous, and the good 

 judgment of every carnation grower will suggest an efficient 

 remedy. 



MICE. 



Mice at times do great damage by cutting and feeding on car- 

 nation plants on the benches. 



REMEDY. 



Keeping a cat in the houses and traps on the benches will 

 soon exterminate them. 



GERMS IN BENCH SOIL. 

 Soil for carnation benches taken from under trees, or near 

 hedges contains germs, pupas, grubs and worms. The soil should 

 be sterilized by heat before being used. 



