510 



shows as brownish scattered patches on the skin. The fruit attacked 

 does not readily rot, but dries up and remains in a mummified con- 

 dition through the winter, either on the ground or on the tree. 

 From these, innumerable blackish sclerotic, bearing in the spring a 

 crop of spores, renew the infection. 



Brown Kot (Monilia fructigena, Pers.). 



This disease is, in places, the worst the plum-growers have to 

 deal with. 



The remedy consists in picking, removing, and burning all 

 these mummified fruit. Spray thoroughly before the buds burst. 

 Suppress bark and skin-nibbling insects in the spring. Spray with 

 Bordeaux mixture when the fruit is forming. 



CANKER is first caused by a bruise or a laceration of the bark 

 of the branch, and the invasion of the wound by a fungus (Nectria 

 and other fungi), which prevents a healthy healing up of the 

 damaged tissues. The claws of climbing animals, the bite of gnaw- 

 ing insects, and other causes bring about this trouble. 



Remedies. Remove the cause of canker. If the bark is never 

 wounded, canker will never appear. Prune the diseased branches, 

 and burn the cankered parts. Lime, sulphur, and salt wash. 



Canker can also be cured by paring off the bruised, ulcerated 

 wounds, and then covering the diseased part with a paste made of 

 clay mixed with hydrochloric acid. Painting the affected part with 

 the acid used by tinsmiths under the name of " spirits of salts " 

 is also a simple and efficacious remedy, the acid destroying the 



