250 INSECTS, DISEASES AND OTHER PESTS 



CARNATION BUD ROT (SPOROTRICHUM POAe) 



The bud rot of Carnations is a disease that did not 

 receive much attention prior to 1908. In this disease, 

 some buds deviate only shghtly from the normal, others 

 fail to expand to perfect flowers, while some never open. 

 In severe attacks the flowers wither and turn brown. 

 The petals wither first, followed by the other parts. A 

 soft rot develops in the buds, resulting in a discoloration 

 of all the parts. In some cases, the fungus can be seen 

 with the naked eye. There is commonly found associated 

 with this fungus a mite which has no casual connection 

 with the disease, but which may help in the distribution 

 of the fungus. Here again control measures depend on 

 ideal cultural conditions for the plants. Although bud rot 

 may develop in sanitary houses, it is to be feared most 

 where sanitary conditions do not prevail. The control 

 and prevention depends then on the plants making a satis- 

 factory growth under the best conditions possible. Af- 

 fected buds should be gathered and burned. Susceptible 

 varieties should not be grown where the disease prevails. 



CARNATION FAIRY RING (hETEROSPORIUM ECHINULATUM) 



(berk) 



Occasionally this trouble is reported from various 

 parts of the country. The disease is characterized by 

 circular spots, varying in diameter bearing more or less 

 concentric zones of a dark mold. The leaves, especially 

 the younger ones, stems, and sometimes the calyx of the 

 flower, may become affected. In some instances the whole 

 top of the plant becomes moldy. Infected refuse and 

 leaves should be burned. Spraying with Bordeaux mixture 

 will also check the disease. 



