PEAR BLIGHT PELARGONIUM 171 



known that the disease may pass the winter in the branches 

 by a slow growth in the neighborhood of late infections. 

 Thorough work of eradication should especially be per- 

 formed after the season of growth. Then cut out every 

 diseased branch and burn, so that in the spring when the 

 succulent growth begins again, there will be few places in 

 which insects may come in contact with the bacterial 

 exudations. 



"(c) Conditions Javoring the disease. The knife is our 

 only hope of extermination; but there are undoubtedly con- 

 ditions which favor the disease. In a succulent, rapidly 

 growing tree the bacteria find more favorable conditions for 

 their development than in one which grows slowly, yet with 

 sufficient vigor. For this reason, too much nitrogenous 

 manure is dangerous; and, for the same reason, a succu- 

 lent growth induced by severe pruning should be avoided." 



Pelargoniums. Here belong the plants known 

 as Geraniums the most satisfactory of house -plants, and 

 extensively used as bedding plants. No plants will give 

 better returns in leaf and flower ; and these features, added 

 to the ease of propagation, make them general favorites. 

 Cuttings of partially ripened wood root very easily, 

 grow to blooming size in a short time, and, either 

 planted out or grown in a pot, make fine decora- 

 tions. The common or "Fish" Geraniums are 

 much more satisfactory when not more than a 

 year old. Take cuttings from the old plants at 

 least once a year. In four or five months the 

 young plants begin to bloom. Plants may be 

 taken up from the garden and potted, but they Pelargonium, or 

 rarely give as much satisfaction as young, vigorous 

 subjects. Eepot frequently until they are in 4- to 5 -inch 

 pots; then let them bloom. 



The show Pelargoniums are those commonly known as 

 Lady Washington Geraniums. These have but one period 

 of bloom, usually in April, but they make up in size and 



